Features
How to motivate foreign direct investment to Sri Lanka
by WA de Silva
Former Executive Director BOI
What are the strategies adopted to attract and obstacles which hinder smooth flow of FDI to Sri Lanka?
The Board of Investment of Sri Lanka (BOI) is the principal agent of the Government entrusted with the responsibility of promoting facilitating and maintenance of Foreign Direct Investments (FDI) based on Board of Investment Law No. 04 of 1978, Strategic Development Act No. 14 of 2008 and subsequent amendments thereto. The Greater Colombo Economic Commission (GCEC) was the predecessor to the Board of Investment. Government has already proposed to establish a Sri Lanka Economic Commission over and above BOI as an apex body on FDI.
The package of incentives currently being used by the BOI for attracting FDI is as follows. FDI projects approved under section 17 of BOI Law No. 04 of 1978 are granted exemptions from laws specified in Schedule “B” of the Law which encompassed the Inland Revenue Act, Customs Ordinance, Exchange Control Act, Companies Ordinance, Merchant Shipping Act, Finance Act, Air Navigation Act, Excise Act, Value Added Tax Act, Economic Service Charges Act, Debt Tax Act etc. subject to the regulations issued by Minister concerned from time to time.
The FDI projects approved under Section 02 of the Strategic Development Project Act No. 14 of 2008 are also granted exemptions from laws specified in the Schedule thereto and further concessions recommended by Minister concerned subject to the approval of Cabinet of Ministers and Parliament. However it may be noted that exemptions given under Schedule B of BOI Law No. 04 of 1978 could be changed, adjusted or revoked by regulations gazetted by Minister in Charge of FDI from time to time subject to prior approval of Cabinet of Ministers. In that context exemptions given to FDI projects are vulnerable to change of Governments and change of the mindset of the politicians who hold Governmental power.
In this context it has become necessary to enact a comprehensive national Policy on FDI covering at least a period of 10 years to avoid abrupt changes of FDI Policy due to whims and fancies of political authorities who hold governmental power.
Article 157 of the Constitution of Sri Lanka provides guarantees for FDI project agreements entered into with BOI. It states inter alia “any Treaty or Agreement between the Government of Sri Lanka and the Government of any foreign State for the promotion and protection of the investments in Sri Lanka of such foreign State, its nationals or of corporations, companies and other associations incorporated or constituted under its laws such treaty or agreement shall have the force of law in Sri Lanka and otherwise than in the interests of national security, no written law shall be entered or made, and no executive or administrative action shall be taken in contravention of the provisions of such Treaty or Agreement”.
The very intention of this Article in the Constitution is to provide stability, promote, foster and protect FDI in Sri Lanka. However it has been observed, this law has been distorted by way of imposing various taxes, levies and cesses which violate free of duty concessions for exports and import of raw materials and project related items given under BOI Agreements/ Such provisions under Section 17 of BOI Law No. 04 of 1978 are allowd to FDI projects due to the fact that those levies and cesses are considered another kind of tax in disguise. PAL (Port Authority Levy) and EIC (Export Import Cess) could be cited as clear examples in this regard.
FDI projects are further benefited by bilateral investment promotion Agreements, double Tax Avoidance Agreements and Free Trade Agreements that Sri Lanka Government has entered into with some selected countries. However due to political protests, Governments couldn’t complete the proposed number of projects. In case of Free Trade Agreements it is necessary to balance the impact of imports and exports between Sri Lanka and the other party to the Agreement and ensure it is in favour of Sri Lanka.
Availability of skilled and trainable workforce, emerging prospects of being a logistic and trading hub of the region consequent to the promulgation of Port City, restoration of peace after eradication of terrorism and the Covid-19 pandemic situation, are considered plus factors for attracting of FDI. However, various negative factors in this process should be arrested to make the positives effective.
There are some procedural obstructions in the process of expediting FDI inflow at present such as clearance required from several Departments and institutions in terms of Tax Laws, Land Laws, Exchange Control Laws, Customs Laws, Labour Laws, Environmental Laws, Laws on Archeology etc. prior to finalizing approval for FDI projects. The one-stop-shop concept and Cabinet Sub-Committee on Investment were established to resolve this problem. However this arrangement did not last long and work satisfactorily due to the adverse impact of political instability of the country and lack of genuine dedication by agencies who participate in this program.
Provisions in some Labour Laws such as Trade Union Ordinance, Factory Ordinance, Holidays Act, Industrial Disputes Act, Termination of Employment Act etc. are impediments to FDI. This is due to abuse of those laws by politicized trade unions to secure their self-interest. Strikes, violent protests, work to rule campaigns and even so called Aragalaya launched by several Trade Unions in the public sector and the private sector, more specifically in Export Processing Zones, could be cited as glaring instances of discouraging prospective FDI Projects intended for Sri Lanka and FDI projects already here. Sabotage of FDI Projects and discouraging of FDI inflows to the country are considered hidden objectives behind those strikes. The law and order issues emerging from time to time due to politicized strikes have been deterrents to attracting FDI.
Certain provisions in prevalent Labour Laws here hinder smooth functioning and production flow of FDI Projects in Export Processing Zones. Several mechanisms such as adjudication, mediation, conciliation, arbitration, negotiation through collective bargaining to resolve industrial disputes exist. But harmful trade union actions such as work-to-rule, go-slow, politicized strikes, general strikes etc.
occur as there is no legal provision in any of those enactments to make it mandatory for trade unions to choose a mechanism more peaceful and beneficial for both parties (employers and employees) such as peaceful negotiations, collective bargaining etc. in the process of resolving industrial disputes. It is necessary to amend Labour Laws eliminating these to create a peaceful labour environment conducive for FDI.
The irresponsible conduct of those who are in the forefront of disseminating negative information over the world against Governments in power have demoralized prospective foreign investors to a considerable extent. Instability they create within the country has obstructed peaceful environment required for FDI on the one hand and tarnishing image of the country tends to demoralize prospective investors on the other.
The ongoing economic crisis and government’s bankruptcy declaration have made prospective investors look for alternative destinations such as Bangladesh, Vietnam, Maldives, Malaysia etc. to invest in. The government is now in the process of sorting out the economy. In that process it is necessary to secure active co-operation and support of political parties in the Opposition.
Political interference in State Owned Enterprises (SOEs) is common. Such interference is not uncommon in the BOI as well retarding its efficiency to some extent. The BOI leadership must handle such pressure in the manner adopted by first Chairman/Director General of GCEC/BOI Upali Wijewardena. There have been occasions in the past where the BOI was compelled to launch several projects non-viable in the long-run at public cost as alternative to FDI due to political pressure. The classic example in this regard is the 200 garment factories project and Mihintale Gamudawa sponsored by BOI at a tremendous cost. These projects do not exist at present.
FDI targets set should be realistic and achievable. The concerned authorities should take relevant global and local situations into account in approving projects. The practice of fixing targets based on political ambitions disregarding the reality of global and local situations should be arrested due to the fact that such targets are not realistic and hence unachievable.
The BOI’s Research Department claims that the following FDI targets for the years 2022 and 2023 were achieved.
This achievement is commendable in the context of the ongoing political and economic crisis and other impediments referred to above which hindered FDI flow. These obstacles obviously are beyond BOI control.
The Government has decided to enact an Investment Act to be the governing law for the proposed Sri Lanka Economic Commission (SLEC). The functions of BOI and Export Development Board would be merged and placed under SLEC. In addition it has been decided to establish Sector Specific Advisory Councils (SSAC) to seek expertise from private and public sectors for attraction and retention of FDI in Sri Lanka.
This program would definitely be an effective solution to the institutional structural and procedural deficiencies in attracting FDI into Sri Lanka. However it will not be a solution to the ongoing political and economic instability in this country which is the main obstacle to attracting and promoting FDI.
Whilst clearing these obstacles, it is necessary to make present incentive package for FDI Projects more attractive and competitive when compared to the packages offered by our competitors in the region. It is necessary to obtain expertise of internationally recognized professionals in this regard and also to make funds available for that purpose.
Lack of sufficient fund allocation to provide maintenance and update infrastructure facilities required for FDI in the Export Processing Zones should be resolved.
It may be noted that it is extremely difficult if not impossible to accelerate FDI flow in Sri Lanka without political and economic stability here. Political and economic instability is the outcome of divisive politics exercised by political parties and affiliates based on their self-centered agendas disregarding the national interest. Resolution of this problem is absolutely necessary in the process of promoting FDI.
(The writer is a retired executive director of the BOI who holds an MBA from the SJU following his first BA (Special) degree from the University of Ceylon in 1967. He has served as a consultant on various Human Resource Management and Development programs and also lectured at the American College of Higher Studies. He’s been a management consultant to a multinational group of FDI companies from 2006 to date)
Features
A new mediation law for smarter dispute resolution of civil and commercial disputes – II
(Part I of this article appeared in The Island yesterday.)
An examination of how some of the other countries have institutionalised mediation to address the problem of laws delays shows that an array of institutional devices have been adopted to provide for mediation not only as a voluntary option but also in some jurisdictions, as a mandatory requirement prior to litigation, to respond to serious issues of delays due to congestion in courts.
In the UK , in March 1994, the Lord Chancellor commissioned Lord Woolf to review the Rules of civil procedure with a view to improving access to Justice, reducing the cost of litigation and removing unnecessary complexity. The resulting Access to Justice Report (1996) triggered a series of reforms to improve the civil justice system primarily through the civil procedure rules (1999) which articulated that its overriding objective is to enable the court to deal with cases justly and at proportionate cost. In 2023, the Court of Appeal judgment in Churchill v. Merthyr Tydfil County Borough Council [2023] EWCA Civ 1416, decided that English courts do have the power to stay civil proceedings for, or order, parties to engage in mediation or another non-court- based dispute resolution process. The Rules were thereafter amended in 2024 to provide for the use of alternative dispute resolution (ADR) more proactively. These included rules that recognied that –
* promoting or using ADR is a means of achieving the overriding objective;
* the court has a duty to actively manage cases to further the overriding objective, including by ‘ordering or encouraging the parties to use, and facilitating the use of, alternative dispute resolution’ and ‘helping the parties to settle the whole or part of the case’
* in deciding a costs order, a court will have regard to all the circumstances of the case, including the conduct of the parties, including whether a party failed to comply with an order for ADR or unreasonably failed to engage in ADR.
An ADR pledge made by the UK Government in 2001 was renewed in 2011, by the Dispute Resolution Commitment (DRC) requiring departments to use mediation, arbitration and conciliation. At that time, the then Justice Minister Jonathan Djanogly said: ‘I believe that government should be leading by example by resolving issues away from court using alternatives which are usually quicker, cheaper and provide better outcomes. We want people to see court as a last resort rather than a first option, and cut down on the amount of unnecessary, expensive, painful and confrontational litigation in our society. In many cases methods like mediation are simply a common sense solution which benefits everyone involved. Although they will not be suitable in every case, they are already saving taxpayers millions every year and can save much more.’
The judicial dicta on the power of the courts to order mediation and the imposition of costs on even a successful party for unreasonable refusal to mediate, provides clear acceptance of a pro mediation approach by the UK courts.
In the USA , the discussion on the need for alternatives was raised in a speech made in 1906, by Roscoe Pound, a relatively unknown legal academic at the time, addressing the annual meeting of the American Bar Association (ABA). The title of his address was “The Causes of Popular Dissatisfaction with the Administration of Justice.” He critiqued the American legal system and charged that it was riddled with archaic technicalities, too slow, too expensive and adversarial and that there was injustice when procedure received emphasis above the substantive issues of a conflict. He spoke of the “sporting theory of justice” where litigation was considered as a game where the lawyers were gladiators battling in court to win. He charged that the contentious procedure compels ‘counsel to forget that they are officers of the court and to deal with the rules of law and procedure exactly as the professional football coach with the rules of the court.’ At the time, Pound’s criticisms were considered scandalous, blasphemous and the ABA refused to publish the speech. Things changed however.
Thirty years later, Roscoe Pound went on to become Dean of the Harvard Law School and became a celebrated legal luminary. As for the legal system – Roscoe Pounds sentiments were not dismissed. Seventy years later in 1976, the then Chief Justice Warren Burger convened the Pound Conference (called the second Pound Conference, with the first attributed to Pounds’ 1906 speech event), to consider whether Pounds’ criticisms had been adequately addressed and what more needed to be done. Professor Frank Sander of the Harvard Law School delivered the keynote address and spoke of his vision for a comprehensive Justice center (the “multi door court house”) where an alternative system would function parallel to the litigation system and disputes would be directed to the most appropriate process, such as arbitration and mediation.
The impact of these discussions resulted in significant changes to the dispute resolution landscape in the USA through statutes, inclusion of ADR in academic courses, and the professionalization of the practice of ADR processes, including mediation. Currently, arbitration and mediation are recognized within the mainstream legal system with resounding success. All the States have recognized ADR pathways including mediation, in statutes. Mediation is well entrenched in the USA and the success rate is reportedly very high.
Australia has institutionalized mediation through several statutory and other initiatives. Courts are empowered to refer disputes to mediation without the consent of the parties to enable better management of civil matters. The Civil Dispute Resolution Act, 2011 contains provisions to ensure that, other than in respect of certain excluded civil proceedings, parties must take “genuine steps” to resolve disputes prior to litigation. The Act obligates parties instituting proceedings in court to file a “genuine steps statement” setting out the steps taken to resolve issues or the reasons why no such steps were taken and further provides that a Lawyer acting for such a party must advise that party of the requirement and assist that party to comply with that requirement.
In Ireland, in the very recent case of Burke v O’Connell [2026] IEHC 314 (May 20, 2026), the High Court considered whether a court can order parties to mediate a dispute, against their will, or whether a court is restricted to simply inviting the parties to mediate. Among other issues, the court considered whether mandatory court ordered mediation is a breach of a constitutional right of access to courts, and decided that a court delaying court proceedings for court ordered Mediation, even against the will of the parties, would not constitute a breach of the right access to the courts under the Constitution or the European Convention on Human Rights, and that judges in Ireland regularly make clear that the right of access to the courts is not unconditional. Importantly the court observed that the court is not directing the parties to reach an agreement but simply to commence a mediation. The Court also observed that a court directed mediation order is a very limited order which does not compel settlement and only requires parties to commence a Mediation process and that while attendance at Mediation may not be voluntary, reaching a settlement is voluntary and made order that a court, in controlling its own process, did have the power to direct Mediation in appropriate cases, and that it was an inherent power of the court to ensure the effective and efficient operation of the courts.
The Indian Mediation Act, 2023 articulates a pro mediation policy and provides for mediation via a court annexed scheme for which detailed statutory provisions are included. The Act states that parties may voluntarily, and whether there is a mediation agreement or not, take steps to pursue court annexed pre litigation mediation and provides for the steps to be taken therefor (section 5). The Act provides further that, even if such pre litigation mediation is unsuccessful, a court or tribunal may, at any stage of the proceedings, refer parties to undertake mediation and that when a court so refers a dispute, there is no obligation on the parties to come to a settlement (section 7). In respect of high value commercial disputes however, a plaintiff is required to exhaust ‘the remedy of pre institution mediation’ prior to instituting action, unless urgent interim relief is sought – section 12A introduced by the Commercial Courts, Commercial Division, and Commercial Appellate Division of High Courts (Amendment) Act, No. 28 of 2018.
In South Africa, parties are mandated to consider mediation before initiating litigation in the High Court. Challenged by a serious issue of a severe backlog, with trial dates scheduled even up to 2031, a Directive was issued by the Judge President of the Gauteng Division of the High Court along with a detailed process Protocol, effective April 2025 to require mandatorily that prospective litigants in all civil matters within the Gauteng division must participate meaningfully in a court-annexed mediation process before they can be allocated a trial date. The protocol requires, among other documents, that a Report of the Mediator stating, among other matters, whether parties “participated in good faith” be filed, to obtain a trial date. This requirement has been included to avoid what the Judge President refers to as “sham mediations.” (https://www.youtube.com/watch?v=v5Gmkzfu8gA&t=425s) Non-compliance results in matters being struck off the roll and could lead to adverse or punitive cost orders. Currently, a challenge to this Directive by the Personal Injury Plaintiff Lawyers Association and the Law Society of South Africa is pending, without a stay of the Rule.
Singapore has emerged as a global leader in the practice of mediation. The Mediation Act 2017 provides for a framework for the use of mediation and for enforcement of a mediated settlement agreement as a decree of court. Mediation is well entrenched in the legal system of Singapore and enjoys the support of government as well as the judiciary. Singapore played a key role in UNCITRAL in the deliberations that led to the drafting of the text for the 1998 UN Mediation Convention and was host to the Convention signing ceremony in August 1999 where a historical number of 46 countries, including Sri Lanka, signed the Convention on the very first day. Many of the training programmes for Sri Lankans that have been arranged by the International ADR Center, have been conducted by the Singapore International Mediation Centre (SIMC) which is renowned for its programmes and for services to handle international commercial disputes.
The European Union Directive (EU Directive 2008/52/EC) provides that a court may, when appropriate and having regard to all the circumstances of the case, invite parties to use mediation (Article 5.1) and that the Directive is without prejudice to national legislation to making the use of mediation compulsory or subjective to incentives or sanctions … provided that such legislation does not prevent the parties from exercising their right of access to the judicial system (Article 5.2). Many European countries have integrated mediation into their dispute resolution systems through legislation or procedural laws in ways that range from recognizing voluntary reference to mediation to requiring mandatory mediation for specified categories of disputes. Countries such as Italy, Greece, Germany and Belgium are some that have robust systems.
It is clear therefore, that jurisdictions around the world, irrespective of the legal system, have sought to recognize mediation for its value not only for minor community dispute resolution but also for the resolution of high value commercial and other family and civil dispute resolution. UNCITRALs preparation of the text for the 1988 UN Mediation Convention was inspired by the significant increase in the use of mediation in international trade and the need for a uniform regime for enforcement, such as the UN NY Arbitration Convention provides in respect of arbitration awards.
Sri Lanka’s advancements have thus far been driven by the private sector. A holistic approach to find responses to the backlog in courts to relieve the pressure on courts, is desired. The promotion of ADR, including mediation, deserves support from the government as well, since, clearly, laws delays have an adverse impact on the economy of the country and should not be seen only as an access to justice issue. As articulated in the UN Mediation Convention, among the positive beneficial results of using mediation for dispute resolution, is that there are cost savings for the State. It is a means of resolving disputes without detracting from the quality of the resolution.
by Dhara Wijayatilake
Attorney at Law; Former Secretary to the Ministry of Justice; Director and Secretary General of the International ADR Center
Features
Killing of Colombo’s ancient trees — a warning on UN’s World Desertification Day – 17 June
In recent years, falling trees have claimed lives, destroyed homes, and sparked an urgent debate: should Colombo’s ancient trees be cut down in the name of safety? But this is the wrong question. The real crisis is not that these trees are dangerous — it is that we have made them so. Through decades of road widening, root-smothering pavements, and indiscriminate branch cutting, we have steadily undermined the very trees we now fear. What we are witnessing is not nature failing us. It is us failing nature. As the world marks World Desertification Day on 17th June, Sri Lanka would do well to reflect that desertification does not begin only in distant, arid lands — it begins whenever a city turns its back on its own green heritage.
In recent years, falling trees have claimed lives, destroyed homes, and sparked an urgent debate: should Colombo’s ancient trees be cut down in the name of safety? But this is the wrong question. The real crisis is not that these trees are dangerous — it is that we have made them so. Through decades of road widening, root-smothering pavements, and indiscriminate branch cutting, we have steadily undermined the very trees we now fear. What we are witnessing is not nature failing us. It is us failing nature.
Colombo, our commercial capital, is considered one of the greenest cities in the world. This is highlighted by the award of the world’s first Wetland City designation to our administrative capital, Sri Jayewardenepura Kotte. Both cities and their green heritage should be treasured and protected — not only as assets of their citizens, but as a matter of national pride.
It is against this backdrop that one must view with deep concern the ongoing destruction of trees and greenery across Sri Lanka, particularly in urban settings such as Colombo and Kotte. The majestic trees lining our traditional tanks, rural areas, and urban areas are part of our heritage. The trees lining Colombo’s Ananda Coomaraswamy Mawatha (previously named the Green Path because of its large trees), Gregory’s Road, Thurstan Road, and Bauddhaloka Mawatha, are over a hundred years old. These are living monuments of our heritage. They provide shade, a natural canopy, and a habitat for a remarkable diversity of bird populations within the city. It is therefore vital that we make every effort to preserve these trees unless they pose a direct danger to human life.
Why Do These Trees Become Dangerous?
To address this question, we must first understand why large trees continue to fall during periods of strong winds. Old photographs indicate that it is we who have widened roads and built pavements to cover the roots of these majestic trees, a true heritage from the past.
A leading reason for trees to fall is age-related decay. Old trees tend to develop weak branches and trunks. Regular inspection of their structural integrity and timely treatment of disease would go a long way in preventing such failures.
The second reason is indiscriminate cutting of branches, which disrupts the natural balance of the tree. A principal offender in this regard is the Ceylon Electricity Board. When interviewing workers engaged in trimming city trees, one consistently hears the same justification: the branch must be cut because it is touching or close to a power line. There are no arborists, trained experts, or senior officials to guide these workers or determine whether a less destructive approach is possible.
The third reason is the destruction of root systems. Across the city, one can observe concrete and paving laid directly over the root zones of large trees. This prevents oxygenation and moisture from reaching the roots, causing them to deteriorate or die. The inevitable consequence is that the tree gradually loses its structural support at the base, making it vulnerable to falling.
What Should Municipalities and Town Councils Do?
To save our ancient trees, we must counter the flawed argument that we need to replace them—these trees are priceless “nature’s investments for hundreds of years” and, as a BBC article on ancient oaks suggests, their genetic heritage is vital for resilient future forests. See “1,000-year-old oaks used to create ‘super forest’ (See )
* A nationwide strategy is essential: we must start by strengthening the expertise of tree officers in the Colombo Municipal Council and other urban councils to ensure professional health assessments are available, while also linking with botanists, academics, and environmental groups at the University of Colombo.
* Use Google Maps and GIS for systematic mapping and reviving a citizen science platform, similar to one previously developed by University of Moratuwa, where students and the public can report environmental harm with photos and locations.
* Technology offers more powerful tools. There are Conventional Visual Tree Risk Assessment (VTRA) methods which fail to detect risks. More advanced methods were reported at the 30 th International Forestry and Environment Symposium 2026 e.g. Ground Penetrating Radar (GPR). These are able to find trunk decay and found examples in urban trees at Viharamahadevi park and Keppetipola road.
* We can raise public awareness through social media and community events like “tree walks,” a practice which could be further popularized by groups like Ruk Rakaganno (see ) and the Love A Tree Foundation (see )
* Finally, we must learn from international models like the UK’s Ancient Tree Forum (see ). The latter specialises in protecting trees as a heritage which must be preserved and protected for future generations.
by Saroj Jayasinghe
Emeritus Professor
Consultant Physician
Features
Dengue and its prevention: A global public health challenge
Dengue is one of the fastest spreading mosquito-borne viral diseases in the world today, posing a growing threat to nearly half of the global population. The World Health Organization describes dengue as a viral infection transmitted to humans through the bite of infected female mosquitoes, primarily Aedes aegypti and, to a lesser extent, Aedes albopictus. Once considered a disease limited to tropical regions, dengue has now expanded widely across continents, driven by urbanization, climate change, population movement, and weak vector control systems.
The global burden of dengue has increased dramatically over recent decades. According to WHO estimates, there are approximately 100 to 400 million infections annually, although a large proportion remain asymptomatic or undiagnosed. The disease is now endemic in over 100 countries, with Asia bearing the highest share of cases, followed by Latin America and Africa. As transmission intensifies and outbreaks become more frequent, dengue has emerged as a major public health concern requiring coordinated prevention and control strategies.
The nature of dengue infection
Dengue is caused by four closely related viruses known as serotypes: DENV-1, DENV-2, DENV-3, and DENV-4. Infection with one serotype provides lifelong immunity to that specific strain, but only partial and temporary protection against the others. This means a person can be infected up to four times in their lifetime.
Most dengue infections are asymptomatic or mild. When symptoms do occur, they typically appear 4 to 10 days after the bite of an infected mosquito. The clinical presentation includes high fever, severe headache, pain behind the eyes, muscle and joint pain, nausea, vomiting, rash, and fatigue. Because these symptoms resemble other viral infections, dengue is often underdiagnosed in early stages.
While most patients recover within one to two weeks, a small proportion develop severe dengue. This life-threatening condition is characterised by plasma leakage, severe bleeding, organ impairment, and shock. Without timely medical intervention, severe dengue can be fatal. WHO emphasises that early diagnosis and appropriate clinical management can reduce fatality rates to below 1 percent in well-managed settings.
Transmission and mosquito ecology
Dengue is transmitted primarily through the bite of infected female Aedes mosquitoes. These mosquitoes are highly adapted to urban environments and typically breed in artificial water containers found in and around homes. Unlike malaria-transmitting mosquitoes, Aedes mosquitoes bite during the daytime, with peak activity in the early morning and late afternoon.
The lifecycle of the mosquito plays a crucial role in transmission. Eggs can survive for months in dry conditions and hatch when they come into contact with water. Even small collections of water, such as flower pots, discarded containers, tyres, and water storage tanks, can serve as breeding sites.
Urbanisation has significantly contributed to the spread of dengue. Rapid population growth in cities often leads to overcrowding, poor waste management, and inadequate water storage practices, all of which create ideal breeding conditions for mosquitoes. Climate factors such as increased rainfall, humidity, and temperature further enhance mosquito survival and virus replication.
Risk factors and global expansion
Several factors increase the risk of dengue transmission. Population density is a key driver, as densely populated urban areas provide abundant human hosts for mosquitoes. Inadequate housing conditions and poor access to clean water force communities to store water in containers, which often become breeding grounds.
Human mobility also contributes to the spread of the disease, as infected individuals can introduce the virus into new regions where competent mosquito vectors are present. Climate change has expanded the geographical range of Aedes mosquitoes into previously unaffected areas, increasing the risk of outbreaks in both tropical and subtropical regions.
WHO has noted that dengue incidence has increased significantly over the past 50 years, with periodic outbreaks becoming more frequent and severe. The disease is now considered a major global health threat, comparable in burden to other high-impact infectious diseases in many regions.
Clinical management and absence of specific treatment
There is currently no specific antiviral treatment for dengue. Management is supportive and focuses on relieving symptoms and preventing complications. Paracetamol is recommended to reduce fever and pain, while non-steroidal anti-inflammatory drugs such as ibuprofen and aspirin are avoided due to their risk of increasing bleeding.
Patients with severe dengue require hospitalisation for close monitoring and supportive care, including intravenous fluid replacement and management of shock or bleeding. With proper medical care, mortality rates can be significantly reduced.
Early detection is critical. Warning signs such as persistent vomiting, severe abdominal pain, bleeding gums, rapid breathing, and sudden fatigue indicate progression to severe dengue and require immediate medical attention.
Prevention: the cornerstone of dengue control
Since there is no specific cure, prevention remains the most effective strategy against dengue. WHO strongly emphasises integrated vector management as the foundation of dengue control.
Personal protection measures are essential, especially during daytime hours when mosquitoes are most active. These include the use of mosquito repellents containing DEET, picaridin, or IR3535, wearing long-sleeved clothing, and using mosquito nets when resting during the day. Window and door screens also help reduce indoor mosquito exposure.
Environmental management is equally important. Communities are encouraged to eliminate breeding sites by removing stagnant water, disposing of waste properly, and cleaning water storage containers regularly. Even small water collections can sustain mosquito populations, making household-level participation crucial.
Public health programmes also rely on insecticide spraying during outbreaks to rapidly reduce mosquito populations. However, WHO emphasises that chemical control alone is insufficient without sustained community involvement and environmental management.
Community participation and public health response
Community engagement is a central pillar of dengue prevention. Effective control requires continuous participation from households, schools, workplaces, and local authorities. Public awareness campaigns play a vital role in educating populations about mosquito breeding habits and personal protection measures.
Surveillance systems are also essential for early outbreak detection and response. Health authorities monitor dengue cases and mosquito populations to identify high-risk areas and implement targeted interventions.
Integrated approaches that combine environmental management, biological control, chemical interventions, and public education have proven most effective in reducing transmission.
Vaccination and emerging tools
In recent years, dengue vaccines have been developed and introduced in some countries under specific conditions. WHO has recommended the use of certain vaccines in areas with high transmission, particularly for populations with prior exposure to dengue. However, vaccination strategies remain limited and must be carefully implemented due to the complexity of immune responses to dengue infection.
Research continues into new tools such as genetically modified mosquitoes, Wolbachia-infected mosquitoes that reduce virus transmission, and improved diagnostic technologies. These innovations offer promising additional tools but are not yet substitutes for established prevention measures.
Dengue remains a rapidly growing global health challenge with significant medical, social, and economic impacts. Its spread is driven by urbanisation, climate change, and the adaptability of mosquito vectors. While no specific cure exists, timely clinical care can prevent deaths, and effective prevention strategies can significantly reduce transmission.
The World Health Organization emphasises that dengue control depends on a combination of personal protection, environmental management, community participation, and strong public health systems. As the disease continues to expand geographically, sustained global commitment is essential to reduce its burden and protect vulnerable populations.
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