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Midweek Review

Transmission modes of COVID-19

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By Prof.Kirthi Tennakone,
National Institute of Fundamental Studies
(ktenna@yahoo.co.uk)

In the late 1850s Louis Pasteur discovered organisms seen only through a microscope cause putrefaction of dead biological materials and also infectious diseases. On the basis of these findings, the medical profession at the time concluded; when people get exposed to decaying organic matter, microbes therein gain access to human body, making them sick. Their excrements carrying the pathogen also transfer the disease to others. Later on it became clear a specific types of microbes latently established in the community or in animal reservoirs are responsible for each infectious disease. Sometimes they flare-up, transmitting from one host to another, resulting in an epidemic. When the community acquires herd immunity, the disease wane and move to another location, or reappear at the same place later. Rarely a microorganism, naturally associated with an animal, jumps to a human and after genetic alterations develops into a contagious illness. Most of the existing infectious diseases are believed to have originated by the above evolutionary process. The genetic material of the coronavirus (SARS-CoV-2) resemble those of viruses present in some species of bats, but definitive evidence is not available to determine how it passed to humans.

Depending on the nature of the infectious agent and symptoms caused by its invasion to the human body, diseases spread via one or several of different modes. Notably; direct or indirect exposure to body fluids, food or water contaminated with excretions of the sick, pathogen released to air or mediation of another living organism (vector).

Pathogens evolve to optimize the mode of transmission to proliferate and survive, but not to exterminate the host. Propensity of evolution via genetic changes is higher in the case of viruses, notably those based on RNA. More the virus replicate by infecting a larger population, chances of popping up variants increase proportionately.

Respiratory transmission of
infectious diseases

One of the most effectual modes of disseminating an infection is releasing the pathogen into the air in coughing, sneezing, talking or exhalation. Here, germs enter into the bodies of other people during inhalation, deposition on lips, nostrils, eyes or skin. Those deposited on surrounding objects sometimes contaminate hands and may subsequently enter the mouth. Apart from COVID-19, quite a number of most contagious viral and bacterial diseases spread by the airborne route. These include viral diseases; common cold, influenza, measles, mumps, chicken pox, viral meningitis and bacterial diseases; tuberculosis, diphtheria, whooping cough and anthrax. Lungs and the respiratory tract are more susceptible to intrusion by germs compared to the gastrointestinal tract, because the acidity of the latter resist foreign organisms.

Airborne diseases are hardest to control, because of the high probability of transmission through an all-pervading invisible medium and prohibitive difficulty of sterilizing large volumes of air.

The direct respiratory transmission of a pathogen proceeds via two aerodynamical mechanisms; droplet transmission and aerosol transmission, the latter is also referred to as airborne transmission.

 

Droplet Transmission

When an infected person cough, sneeze, speak or exhale deeply, ejected fluid droplets disperse into air. These droplets constituted largely of water, enclose mucus and the pathogen. With the initial velocity imparted, droplets propel forward and begin to fall owing to gravity, following a curved trajectory.

At school, we learn that all falling objects; irrespective of mass and size, moves with continuously increasing speed at a constant acceleration of approximately 10 meters per second. This is in absence of air resistance, negligible compared to gravitational force for heavy objects. Situation differs in the case of small particles, where air resistance is comparatively important. As shown by Irish physicist George Stokes, falling spherical particles encounter a breaking force proportional to the velocity. Consequently they accelerate for very short time and thereafter fall down with a uniform speed proportional to the square of the radius. Thus larger droplets, those greater than 5-10 micrometers (1micrometer = 1/1000 of a millimeter) fall rapidly and reach the ground after propelling a short distance of about 1-2 meters. Only those persons within this range get exposed to larger droplets. Smaller droplets fall further or remain airborne and floats around.

Particles floating in air without settling down to the ground are known as aerosols.

Water in respiratory droplets evaporate, converting sizable ones to smaller entities; more likely to be transported as aerosols. Sometimes water evaporates completely producing nuclei carrying the pathogen. Nuclei being lighter remain afloat longer. Evaporation depends on relative humidity and ambient temperature.

The genius scientist and engineer William F. Wells working in Baltimore hospital, United States, in 1934 was the first to analyze theoretically the respiratory transmission of infections, distinguishing droplet and aerosol modes.

 

Aerosol Transmission

Smaller droplets (less than 5-10 micrometers and sometimes even larger), those reduced to similar sizes by evaporation of the water content and droplet nuclei resulting from drying-up of droplets remain suspended in air without falling to the ground. They can be carried long distances exceeding 10 meters by air currents or accumulate in poorly ventilated spaces. Evaporation to dryness could inactivate pathogen and many viruses and bacteria seem to have evolved strategies to circumvent this problem – possibly the residue mucus help to preserve them live.

To prove the aerosol hypothesis, William Wells vented air from a tuberculosis ward in Baltimore hospital to a compartment where Guinea pigs were nourished. He observed about 3 percent of the animals contracted tuberculosis. Examination of the lesions in lungs revealed they have originated by deposition very few bacilli each time; further supporting the aerosol hypothesis. Aerosols being minute, each carry very few microbes. In another experiment Wells irradiated air from the tuberculosis ward with ultraviolet light before venting to the Guinea pig cage. Here none of the pigs developed the disease, confirming germs originated from the ward.

Today we describe tuberculosis as an archetypal example of a respiratory disease communicated by aerosols. Measles and chickenpox also spread predominantly via aerosol route.

Despite the seminal work of W.G. Wells, medical texts continued to emphasize most respiratory infections including common cold and influenza transmits via droplet mechanism. For this reason the COVID-19 virus was assumed to transmit primarily via droplets and preventive measures were recommended accordingly.

Although scientists continued to insist COVID-19 virus could communicate via aerosols; World Health Organization (WHO) and Center for Disease Control and Prevention (CDC), United States and several other leading health care authorities did not acknowledge airborne transmission. About a month ago, all these organizations revised their websites making statements to the effect that COVID-19 could also be transmitted by aerosols.

At shorter distances (2-3 meters), both droplets and aerosols pass on coronavirus. Whereas at longer distances (especially unventilated situations) aerosols play a predominant role.

There exist reasons to suspect aerosol communicated illness is more virulent. In droplet mechanism, the virus lands on the nasal region of the respiratory passage gradually proliferating downwards in the respiratory tract. Whereas aerosols can reach the lungs directly, causing acute respiratory complications instantly. Possibly when virus is first introduced into the upper respiratory tract by droplets, the local infection there induce some immunity before it reaches the lungs – suggesting aerosol communicated infection is more virulent.

 

COVID Transmission modes and control measures

Decisions regarding what measures to be adopted in controlling an infectious disease necessitates gaining an understanding of the nature of the causative agent and how it is transmitted. For diseases known to have existed for long periods of time, requisite information is readily available permitting immediate intervention. When COVID-19 surfaced it was a new disease not known to have existed previously. Modern science was quick to ascertain the genotype (complete genetic information of an organism) and phenotype of the virus (actually observed characteristics of an organism) and pathology of the disease – information essential design vaccines and curative medicines.

Finding how the virus spreads poses more challenges, especially when there are more than one possible modes of transmission. Here it is important to determine the relative weightage of each mode. In absence of detailed information regarding modes of transmission, droplet mechanism was assumed; because common viral respiratory diseases are considered to pass via this avenue. Accordingly, preventive measures recommended were; social distancing, limiting mobility, wearing masks and sanitization of the hand as well as surfaces likely to be contaminated by the deposit of droplets.

Even in situations where aerosol transmission turns out be more likely, it is imperative, the measures recommended for the droplet mode are strictly followed. However, additional safeguards needs to be imposed when aerosols poses a threat. Aerosols travel longer distance from the source and could diffuse throughout a closed space or carried further by air currents. Masks one wears has to be the type that filters aerosols and tight fitting to avoid aspiration of air from the gaps during inhalation. The risk of aerosol transmitted infection is vastly higher in poorly ventilated indoor environments.

In outdoors situations aerosol transmission is minimal provided social distancing (about 2-3 meters) is strictly maintained while wearing masks, as aerosols diffuse fast. However open markets cannot be considered as outdoor owing to poor circulation. Here additional precautions are necessary to avoid overcrowding.

 

Superspreading of COVID-19

In many instances a good number of people gathered in markets, shops, malls and auditoriums or enclosed workplaces have contracted COVID-19, presumed to be infected by one identified carrier. All individuals who contracted the infection were most unlikely to have encountered the carrier at 1-2 meter distance. Obvious conclusion would be, the virus had been in air and many have breathed it. Experiments indicate virus could survive in aerosols several hours. Poor ventilation, improper air-conditioning and air recycling accumulate aerosols. An infected individual identified to have created a big cluster is sometimes referred to as a superspreader. However, it does not necessarily imply the subject shreds more of the virus. Often the cause of extensive spread had been the nature of an event or the environment where people gathered and participated. In a large congregate, one carrier moving around could contaminate breathing air with germs harbored aerosols to lethal proportions, if the ventilation is inadequate. Imagine the extent of transmission in such situations, when there are several carriers!

A peculiarity of the COVID-19 pandemic: over-dispersion of the basic reproduction number

The present pandemic is peculiar in terms of a concept in mathematical epidemiology referred to as over-dispersion of the basic reproduction number. Basic reproduction number (R0) refers to the average of number of new cases generated by one carrier of the pathogen. For COVID 19 value of R0 is generally a number around 2. It is an average, if we take R0 as 2; it does not mean every infected person reproduce 2 others. The value of R0 could fluctuate randomly or follow an identifiable non-random pattern to yield an average of 2. Statistics of corona virus cases points to the latter.

A larger percentage of infected persons may not pass the disease to anyone, but if each in a smaller percentage of carriers, under special circumstances; infect numbers very much greater than 2, you still would obtain an average of 2. This is exactly the pattern observed in COVID-19 – about 75 percent of the infected persons do not pass disease to others! The flu of 1918 which caused a major calamity also had a basic reproduction number of about 2. Here, contrastingly; 40 percent did not cause secondary infections. Mathematicians measure this difference in terms of another parameter known as the over-dispersion factor denoted by K. The value of K for COVID-19 and the 1918 flu are 0.1 and 1 respectively. A small value of K implies a large percentage of infected persons rarely pass the disease to others, while a small percentage aggressively and sporadically fuel the epidemic.

In Sri Lanka and elsewhere the COVID-19 epidemic progressed mainly as clusters appearing spatially and temporally. The low over-dispersion factor of the present pandemic testifies cluster effect.

If causes are understood and actions taken to alleviate them, low over-dispersion can be advantageously exploited to mitigate the pandemic. A small value for K, means; rare situations congregating people, trigger the pandemic. If they are identified and eliminated, pandemic will dwindle and disappear allowing time for vaccinations secure long term safety and suppress breeding of variants.

The over-dispersion of basic reproduction number of the present pandemic imply that in respiratory transmission of the coronavirus ; it does not significantly distribute via random association of infected and susceptible individuals, but largely by a small set of noticeable social situations and therefore in principle, suppressible by community efforts to follow preventive measures. The pandemic may be suppressed by curtailing events and situations leading to breeding of clusters without restricting routine and other activities essential to drive the economy.

Many epidemiologists believe one of the main causes of low value of K is a direct consequence aerosol transmission under circumstances favorable to their accumulation – especially events and situation that congregate people.

Low dispersion of the basic reproduction number is also advantageous to the virus to resist the pressure of herd immunity. Even if a large fraction of a population is vaccinated, a local situation favorable for super-spreading could create a cluster.

Flu pandemic of 1918 fizzled out completely in 2.5 to 3 years, presumably because of the much higher value of K and rapid acquisition of herd immunity by exposure to the pathogen. Apart from distinctions in the viruses and their pathologies; a noteworthy difference of 1918 pandemic and COVID-19 are: smaller population densities, less human mobility and rarity of super spreading situations and events in the former.

Since the emergence of the COVID-19 epidemic in China, world learned so much about the disease. Yet, there are unknowns; especially finer details of how it propagates and how to cure it. The complex phenomenon of COVID-19 spreading cannot be understood entirely in terms of two numbers R0 and K – although these quantities have provided valuable insights.

We know for certain corona virus can be suppressed by control measures and vaccination. It is the duty of every citizen, community and nation to strictly abide by rules of prevention until vaccines are rolled out and appropriately thereafter.



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Midweek Review

Year ends with the NPP govt. on the back foot

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President Dissanayake addresses Parliament as PM Dr. Harini Amarasuriya looks on. Dissanayake is the leader of both the JVP and NPP

The failure on the part of the Janatha Vimukthi Peramuna (JVP)-led National People’s Power (NPP) government to fulfil a plethora of promises given in the run up to the last presidential election, in September, 2024, and a series of incidents, including cases of corruption, and embarrassing failure to act on a specific weather alert, ahead of Cyclone Ditwah, had undermined the administration beyond measure.

Ditwah dealt a knockout blow to the arrogant and cocky NPP. If the ruling party consented to the Opposition proposal for a Parliamentary Select Committee (PSC) to probe the events leading to the November 27 cyclone, the disclosure would be catastrophic, even for the all-powerful Executive President Anura Kumara Dissanayake, as responsible government bodies, like the Disaster Management Centre that horribly failed in its duty, and the Met Department that alerted about the developing storm, but the government did not heed its timely warnings, directly come under his purview.

The NPP is on the back foot and struggling to cope up with the rapidly developing situation. In spite of having both executive presidency and an overwhelming 2/3 majority in Parliament, the government seems to be weak and in total disarray.

The regular appearance of President Dissanayake in Parliament, who usually respond deftly to criticism, thereby defending his parliamentary group, obviously failed to make an impression. Overall, the top NPP leadership appeared to have caused irreparable damage to the NPP and taken the shine out of two glorious electoral victories at the last presidential and parliamentary polls held in September and November 2024 respectively.

The NPP has deteriorated, both in and out of Parliament. The performance of the 159-member NPP parliamentary group, led by Prime Minister Dr. Harini Amarasuriya, doesn’t reflect the actual situation on the ground or the developing political environment.

Having repeatedly boasted of its commitment to bring about good governance and accountability, the current dispensation proved in style that it is definitely not different from the previous lots or even worse. (The recent arrest of a policeman who claimed of being assaulted by a gang, led by an NPP MP, emphasised that so-called system change is nothing but a farce) In the run-up to the November, 2024, parliamentary polls, President Dissanayake, who is the leader of both the JVP and NPP, declared that the House should be filled with only NPPers as other political parties were corrupt. Dissanayake cited the Parliament defeating the no-confidence motions filed against Ravi Karunanayake (2016/over Treasury Bond scams) and Keheliya Rambukwella (2023/against health sector corruption) to promote his argument. However, recently the ongoing controversy over patient deaths, allegedly blamed on the administration of Ondansetron injections, exposed the government.

Mounting concerns over drug safety and regulatory oversight triggered strong calls from medical professionals, and trade unions, for the resignation of senior officials at the National Medicines Regulatory Authority (NMRA) and the State Pharmaceutical Corporation (SPC).

Medical and civil rights groups declared that the incident exposed deep systemic failures in Sri Lanka’s drug regulatory framework, with critics warning that the collapse of quality assurance mechanisms is placing patients’ lives at grave risk.

The Medical and Civil Rights Professional Association of Doctors (MCRPA), and allied trade unions, accused health authorities of gross negligence and demanded the immediate resignation of senior NMRA and SPC officials.

MCRPA President Dr. Chamal Sanjeewa is on record as having said that the Health Ministry, NMRA and SPC had collectively failed to ensure patient safety, citing, what he described as, a failed drug regulatory system.

The controversy has taken an unexpected turn with some alleging that the NPP government, on behalf of Sri Lanka and India, in April this year, entered into an agreement whereby the former agreed to lower quality/standards of medicine imports.

Trouble begins with Ranwala’s resignation

The NPP suffered a humiliating setback when its National List MP Asoka Ranwala had to resign from the post of Speaker on 13 December, 2024, following intense controversy over his educational qualification. The petroleum sector trade union leader served as the Speaker for a period of three weeks and his resignation shook the party. Ranwala, first time entrant to Parliament was one of the 18 NPP National List appointees out of a total of 29. The Parliament consists of 196 elected and 29 appointed members. Since the introduction of the National List, in 1989, there had never been an occasion where one party secured 18 slots.

The JVP/NPP made an initial bid to defend Ranwala but quickly gave it up and got him to resign amidst media furor. Ranwala dominated the social media as political rivals exploited the controversy over his claimed doctorate from the Waseda University of Japan, which he has failed to prove to this day. But, the JVP/NPP had to suffer a second time as a result of Ranwala’s antics when he caused injuries to three persons, including a child, on 11 December, in the Sapugaskanda police area.

The NPP made a pathetic, UNP and SLFP style effort to save the parliamentarian by blaming the Sapugaskanda police for not promptly subjecting him for a drunk driving test. The declaration made by the Government Analyst Department that the parliamentarian hadn’t been drunk at the time of the accident, several days after the accident, does not make any difference. Having experienced the wrongdoing of successive previous governments, the public, regardless of what various interested parties propagated on social media, realise that the government is making a disgraceful bid to cover-up.

No less a person than President Dissanayake is on record as having said that their members do not consume liquor. Let us wait for the outcome of the internal investigation into the lapses on the part of the Sapugaskanda police with regard to the accident that happened near Denimulla Junction, in Sapugaskanda.

JVP/NPP bigwigs obviously hadn’t learnt from the Weligama W 15 hotel attack in December, 2023, that ruined President Ranil Wickremeinghe’s administration. That incident exposed the direct nexus between the government and the police in carrying out Mafia-style operations. Although the two incidents cannot be compared as the circumstances differ, there is a similarity. Initially, police headquarters represented the interests of the wrongdoers, while President Wickremesinghe bent over backwards to retain the man who dispatched the CCD (Colombo Crime Division) team to Weligama, as the IGP. The UNP leader went to the extent of speaking to Chief Justice Jayantha Jayasuriya, PC, and Speaker Mahinda Yapa Abeywardena to push his agenda. There is no dispute the then Public Security Minister Tiran Alles wanted Deshabandu Tennakoon as IGP, regardless of a spate of accusations against him, in addition to him being faulted by the Supreme Court in a high-profile fundamental rights application.

The JVP/NPP must have realised that though the Opposition remained disorganised and ineffective, thanks to the media, particularly social media, a case of transgression, if not addressed swiftly and properly, can develop into a crisis. Action taken by the government to protect Ranwala is a case in point. Government leaders must have heaved a sigh of relief as Ranwala is no longer the Speaker when he drove a jeep recklessly and collided with a motorcycle and a car.

Major cases, key developments

Instead of addressing public concerns, the government sought to suppress the truth by manipulating and exploiting developments

* The release of 323 containers from the Colombo Port, in January 2025, is a case in point. The issue at hand is whether the powers that be took advantage of the port congestion to clear ‘red-flagged’ containers.

Although the Customs repeatedly declared that they did nothing wrong and such releases were resorted even during Ranil Wickremesinghe’s presidency (July 2022 to September 2024), the public won’t buy that. Container issue remains a mystery. That controversy eroded public confidence in the NPP that vowed 100 percent transparency in all its dealings. But the way the current dispensation handled the Port congestion proved that transparency must be the last thing in the minds of the JVPers/NPPers holding office.

* The JVP/NPP’s much touted all-out anti-corruption stand suffered a debilitating blow over their failure to finalise the appointment of a new Auditor General. In spite of the Opposition, the civil society, and the media, vigorously taking up this issue, the government continued to hold up the appointment by irresponsibly pushing for an appointment acceptable to President Dissanayake. The JVP/NPP is certainly pursuing a strategy contrary to what it preached while in the Opposition and found fault with successive governments for trying to manipulate the AG. It would be pertinent to mention that President Dissanayake should accept the responsibility for the inordinate delay in proposing a suitable person to that position. The government failed to get the approval of the Constitutional Council more than once to install a favourite of theirs in it, thanks to the forthright position taken by its civil society representatives.

The government should be ashamed of its disgraceful effort to bring the Office of the Auditor General under its thumb:

* The JVP/NPP government’s hotly disputed decision to procure 1,775 brand-new double cab pickup trucks, at a staggering cost exceeding Rs. 12,500 mn, under controversial circumstances, exposed the duplicity of that party that painted all other political parties black. Would the government rethink the double cab deal, especially in the wake of economic ruination caused by Cyclone Ditwah? The top leadership seems to be determined to proceed with their original plans, regardless of immeasurable losses caused by Cyclone Ditwah. Post-cyclone efforts still remain at a nascent stage with the government putting on a brave face. The top leadership has turned a blind eye to the overwhelming challenge in getting the country back on track especially against the backdrop of its agreement with the IMF.

Post-Cyclone Ditwah recovery process is going to be slow and extremely painful. Unfortunately, both the government and the Opposition are hell-bent on exploiting the miserable conditions experienced by its hapless victims. The government is yet to acknowledge that it could have faced the crisis much better if it acted on the warning issued by Met Department Chief Athula Karunanayake on 12 November, two weeks before the cyclone struck.

Foreign policy dilemma

Sri Lanka moved further closer to India and the US this year as President Dissanayake entered into several new agreements with them. In spite of criticism, seven Memorandums of Understanding (MoUs), including one on defence, remains confidential. What are they hiding?

Within weeks after signing of the seven MoUs, India bought the controlling interests in the Colombo Dockyard Limited for USD 52 mn.

Although some Opposition members, representing the SJB, raised the issue, their leader Sajith Premadasa, during a subsequent visit to New Delhi, indicated he wouldn’t, under any circumstances, raise such a contentious issue.

Premadasa went a step further. The SJB leader assured his unwavering commitment to the full implementation of the 13th Amendment to the Constitution that was forced on Sri Lanka during President JRJ’s administration, under the highly questionable Indo-Lanka Accord of July, 1987, after the infamous parippu drop by Indian military aircraft over Jaffna, their version of the old gunboat diplomacy practiced by the West.

Both India and the US consolidated their position here further in the post-Aragalaya period. Those who felt that the JVP would be in a collision course with them must have been quite surprised by the turn of events and the way post-Aragalaya Sri Lanka leaned towards the US-India combine with not a hum from our carboard revolutionaries now installed in power. They certainly know which side of the bread is buttered. Sri Lanka’s economic deterioration, and the 2023 agreement with the IMF, had tied up the country with the US-led bloc.

In spite of India still procuring large quantities of Russian crude oil and its refusal to condemn Russia over the conflict in Ukraine, New Delhi has obviously reached consensus with the US on a long-term partnership to meet the formidable Chinese challenge. Both countries feel each other’s support is incalculably vital and indispensable.

Sri Lanka, India, and Japan, in May 2019, signed a Memorandum of Cooperation (MoC) to jointly develop the East Container Terminal (ECT) at the Colombo Port. That was during the tail end of the Yahapalana administration. The Gotabaya Rajapaksa administration wanted to take that project forward. But trade unions, spearheaded by the JVP/NPP combine, thwarted a tripartite agreement on the basis that they opposed privatisation of the Colombo Port at any level.

But, the Colombo West International Terminal (CWIT) project, that was launched in November, 2022, during Ranil Wickremesinghe’s presidency, became fully operational in April this year. The JVP revolutionary tiger has completely changed its stripes regarding foreign investments and privatisation. If the JVP remained committed to its previous strategies, India taking over CDL or CWIT would have been unrealistic.

The failure on the part of the government to reveal its stand on visits by foreign research vessels to ports here underscored the intensity of US and Indian pressure. Hope our readers remember how US and India compelled the then President Wickremesinghe to announce a one-year moratorium on such visits. In line with that decision Sri Lanka declared research vessels wouldn’t be allowed here during 2024. The NPP that succeeded Wickremesinghe’s administration in September, 2024, is yet to take a decision on foreign research vessels. What a pity?

The NPP ends the year on the back foot, struggling to cope up with daunting challenges, both domestic and external. The recent revelation of direct Indian intervention in the 2022 regime change project here along with the US underscored the gravity of the situation and developing challenges. Post-cyclone period will facilitate further Indian and US interventions for obvious reasons.

****

Perhaps one of the most debated events in 2025 was the opening of ‘City of Dreams Sri Lanka’ that included, what the investors called, a world-class casino. In spite of mega Bollywood star Shah Rukh Khan’s unexpected decision to pull out of the grand opening on 02 August, the investors went ahead with the restricted event. The Chief Guest was President Anura Kumara Dissanayake, who is also the Finance Minister, in addition to being the Defence Minister. Among the other notable invitees were Dissanayake’s predecessor Ranil Wickremesinghe, whose administration gave critical support to the high-profile project, worth over USD 1.2 bn. John Keells Holdings PLC (JKH) and Melco Resorts & Entertainment (Melco) invested in the project that also consist of the luxurious Nüwa hotel and a premium shopping mall. Who would have thought President Dissanayake’s participation, even remotely, possible, against the backdrop of his strong past public opposition to gambling of any kind?

Don’t forget ‘City of Dreams’ received a license to operate for a period of 20 years. Definitely an unprecedented situation. Although that license had been issued by the Wickremesinghe administration, the NPP, or any other political party represented in Parliament, didn’t speak publicly about that matter. Interesting, isn’t it, coming from people, still referred by influential sections of the Western media, as avowed Marxists?

 

By Shamindra Ferdinando

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Midweek Review

The Aesthetics and the Visual Politics of an Artisanal Community

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Through the Eyes of the Patua:

Organised by the Colombo Institute for Human Sciences in collaboration with Millennium Art Contemporary, an interesting and unique exhibition got underway in the latter’s gallery in Millennium City, Oruwala on 21 December 2025. The exhibition is titled, ‘Through the Eyes of the Patua: Ramayana Paintings of an Artisanal Community’ and was organized in parallel with the conference that was held on 20 December 2025 under the theme, ‘Move Your Shadow: Rediscovering Ravana, Forms of Resistance and Alternative Universes in the Tellings of the Ramayana.’ The scrolls on display at the gallery are part of the over 100 scrolls in the collection of Colombo Institute’s ‘Roma Chatterji Patua Scroll Collection.’ Prof Chatterji, who taught Sociology at University of Delhi and at present teaches at Shiv Nadar University donated the scrolls to the Colombo Institute in 2024.

The paintings on display are what might be called narrative scrolls that are often over ten feet long. Each scroll narrates a story, with separate panels pictorially depicting one component of a story. The Patuas or the Chitrakars, as they are also known, are traditionally bards. A bard will sing the story that is depicted by each scroll which is simultaneously unfurled. For Sri Lankan viewers for whom the paintings and their contexts of production and use would be unusual and unfamiliar, the best way to understand them is to consider them as a comic strip. In the case of the ongoing exhibition, since the bards or the live songs are not a part of it, the word and voice elements are missing. However, the curators have endeavoured to address this gap by displaying a series of video presentations of the songs, how they are performed and the history of the Patuas as part of the exhibition itself.

The unfamiliarity of the art on display and their histories, necessitates broader explanation. The Patua hail from Medinipur District of West Bengal in India. Essentially, this community of artisans are traditional painters and singers who compose stories based on sacred texts such as the Ramayana or Mahabharata as well as secular events that can vary from the bombing of the Twin Towers in New York in 2001 to the Indian Ocean Tsunami of 2004. Even though painted storytelling is done by a number of traditional artisan groups in India, the Patua is the only community where performers and artists belong to the same group. Hence, Professor Chatterji, in her curatorial note for the exhibition calls them “the original multi-media performers in Bengal.”

‘The story of the Patuas’ also is an account of what happens to such artisanal communities in contemporary times in South Asia more broadly even though this specific story is from India. There was a time before the 21st century when such communities were living and working across a large part of eastern India – each group with a claim to their recognizably unique style of painting. However, at the present time, this community and their vocation is limited to areas such as Medinipur, Birbhum, Purulia in West Bengal and Dumka in Jharkhand.

A pertinent question is how the scroll painters from Medinipur have survived the vagaries of time when others have not. Professor Chatterji provides an important clue when she notes that these painters, “unlike their counterparts elsewhere, are also extremely responsive to political events.” As such, “apart from a rich repertoire of stories based on myth and folklore, including the Ramayana and other epics, they have, over many years, also composed on themes that range from events of local or national significance such as boat accidents and communal violence to global events such as the tsunami and the attack on the World Trade Centre.”

There is another interesting aspect that becomes evident when one looks into the socio-cultural background of this community. As Professor Chatterji writes, “one significant feature that gives a distinct flavour to their stories is the fact that a majority of Chitrakars consider themselves to be Muslims but perform stories based largely on Hindu myths.” In this sense, their story complicates the tension-ridden dichotomies between ethno-cultural and religious groups typical of relations between groups in India as well as more broadly in South Asia, including in Sri Lanka. Prof Chatterji suggests this positionality allows the Patua to have “a truly secular voice so vital in the world that we live in today.”

As a result, she notes, contemporary Patuas “have propagated the message of communal harmony in their compositions in the context of the recent riots in India and the Gulf War. Their commentaries couched in the language of myth are profoundly symbolic and draw on a rich oral tradition of storytelling.” What is even more important is their “engagement with contemporary issues also inflects their aesthetics” because many of these painters also “experiment with novel painterly values inspired by recent interaction with new media such as comic books and with folk art forms from other parts of the country.”

From this varied repertoire of the Patuas’ painterly tradition, this exhibition focusses on scrolls portraying different aspects of the Ramayana. In North Indian and the more dominant renditions of the Ramayana, the focus is on Rama while in many alternate renditions this shifts to Ravana as typified by versions popular among the Sinhalas and Tamils in Sri Lanka as well as in some areas in several Indian states. Compared to this, the Patua renditions in the exhibition mostly illustrate the abduction of Sita with a pronounced focus on Sita and not on Ravana, the conventional antagonist or on Rama, the conventional protagonist. As a result, these two traditional male colossuses are distant. Moreover, with the focus on Sita, these folk renditions also bring to the fore other figures directly associated with her such as her sons Luv and Kush in the act of capturing Rama’s victory horse as well as Lakshmana.

Interestingly, almost as a counter narrative, which also serves as a comparison to these Ramayana scrolls, the exhibition also presents three scrolls known as ‘bin-Laden Patas’ depicting different renditions on the attack on New York’s Twin Towers.

While the painted scrolls in this collection have been exhibited thrice in India, this is the first time they are being exhibited in Sri Lanka, and it is quite likely such paintings from any community beyond Sri Lanka’s shores were not available for viewing in the country before this. Organised with no diplomatic or political affiliation and purely as a Sri Lankan cultural effort with broader South Asian interest, it is definitely worth a visit. The exhibition will run until 10 January 2026.

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Midweek Review

Spoils of Power

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Power comes like a demonic spell,

To restless humans constantly in chains,

And unless kept under a tight leash,

It drives them from one ill deed to another,

And among the legacies they thus deride,

Are those timeless truths lucidly proclaimed,

By prophets, sages and scribes down the ages,

Hailing from Bethlehem, Athens, Isipathana,

And other such places of hallowed renown,

Thus plunging themselves into darker despair.

By Lynn Ockersz

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