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Prof Malavige predicts dengue will get worse with climate change unless…
By Rathindra Kuruwita
The impact of dengue will probably get worse due to climate change, Professor Neelika Malavige of the Department of Immunology and Molecular Medicine, University of Sri Jayewardenepura and Head of Dengue Global Programme and Scientific Affairs, Drugs for Neglected Diseases Initiative (DNDi) has said recently at a conference organized by DNDi in Thailand.
The conference was held in parallel to the 20th International Congress for Tropical Medicine and Malaria (ICTMM). DNDi is a non-profit drug research and development (R&D) organization that is developing new treatments for neglected diseases like dengue.
Professor Malavige said that as the world got warmer, dengue would spread to Europe and North America. She added that dengue fever had become increasingly common in recent decades worldwide with around 390 million infections occurring each year. Climate change had been identified by WHO and other national, and international health authorities as one of the primary causes of the global spread of dengue fever and other Aedes aegypti-transmitted viral infections, she said.
“The weather has an impact on vector-borne illnesses. Rainfall and ambient temperature are referred to as macro factors that influence dengue since they directly impact Aedes aegypti population density,” Prof. Malavige said.
The population density of Aedes aegypti declines when the average temperature is lower.
“The larval development time, larval and adult survival, and duration of the gonotrophic cycle of the dengue vector are directly affected by climatic factors such as ambient temperatures, rainfall, and relative humidity. Vectors are increasing due to increasing temperature. As temperature increases the mosquitoes mature faster, giving them more time to spread the disease,” she said.
On the other hand, increasing population, lifestyle changes and uncontrolled urbanization are also reasons for the rapid global spatial spread of dengue, she said.
“Risk factors like obesity, and diabetes are also increasing among the people. Those with these diseases are more likely to suffer from more serious forms of dengue.”
Doctors and medical administrators in countries with dengue were efficient in managing the disease and this explains why the mortality is lower. However, when there was an overload of cases, the system monitoring and evaluating dengue patients for severity suffers because keeping an eye on each patients becomes an impossibility, Professor Malavige said. “There is a shift in the age of those who get infected. Earlier it was a disease that children got. Now you can find patients from all age groups,” she said.
Commenting on attempts to develop a vaccine for dengue, most recently by Takeda Pharmaceutical Company, Professor Malavige said that the data available looked promising. The vaccine could be soon registered in Latin America and Asia. The current data shows that it reduces hospitalization by about 80%. This is similar to the effectiveness of COVID vaccine, although long term safety data for a dengue vaccine is needed for all serotypes. However, it is unfortunate that there is not yet a designated treatment for dengue.
“Dengue is a disease of the low income countries. Infection of the developing world. Each year hundreds of millions of people are affected by dengue but there is still no treatment for it. Would we have a vaccine so fast if COVID too was a disease of the low income countries? The amount of research done on COVID for the last two years is immense. Not even 10% of the research volume has been directed for dengue. There are not enough funds for dengue research. Global North has done some research but the researchers are far away from the disease. The perspective will be different if they too had to live with dengue,” she said.
Dr. Isabela Ribeiro, Viral Diseases Cluster Director, DNDi said that countries of the Global South must cooperate with each other to find a cure for dengue. There are a number of pharmaceutical powerhouses in the Global South and they can work together to find a cure, she said.
“The World Health Organization’s (WHO) report on neglected tropical diseases, ‘A road map for neglected tropical diseases 2021–2030’ does not mention a treatment for dengue. Their focus is on vaccines and vector control,” she said.
Meanwhile, Jean-Michel Piedagnel, South-East Asia Director, DNDi said that while taking steps to prevent dengue, from vector control to using mosquito repellant was important, it should not be allowed to mask the fact that there was no treatment.
“There is no treatment because there is not enough funding. We must not forget that. Each year hundreds of millions are affected by dengue. They deserve treatment,” he said.
News
Elders’ home devastated by fire was a ‘house of horror’: Witnesses
Death toll rises to 12: Director remanded
Some residents were allegedly chained
Police have come under public pressure to investigate allegations of inhumane treatmenf the residents at an elders’ home in Batagoda, which was also reportedly used as a care centre for persons with special needs, following a devastating fire that has so far claimed 12 lives.
Eyewitnesses who were among the first responders told the media that several residents had been chained inside rooms at the Senehase Kedella Elders’ Home when the fire broke out on Wednesday. They claimed that rescue efforts were hindered as iron chains could not be removed, and that some residents died while being restrained.
Authorities have not yet verified these claims, and Police said investigations are continuing.
Police spokesman ASP F.U. Wootler, contacted for comment, said there were rumours to that effect, but the Police were not in a position to verify the claims until a report from the Government Analyst was received. He said eight survivors with burn injuries were being treated in hospital.
Meanwhile, the Director of the facility had been arrested and was due to be produced before the Horana Magistrate’s Court, Police said adding that he was remanded till June 11.
The death toll from the fire has risen to 12 as of Thursday morning following the recovery of additional charred remains during ongoing forensic examinations at the site. Six others sustained serious injuries and are being treated at the Horana Base Hospital.
Police said 72 residents were inside the facility at the time of the blaze. Of them, 10 died inside the building, seven were injured and hospitalised, while 51 were rescued and relocated.
Survivors were initially housed at Batagoda Junior School before being transferred with Army assistance to another branch of the same care network in Galpatha.
A magisterial inquiry was conducted on Thursday morning. Horana Magistrate Lakmini Vidanagamage visited the scene. The burnt remains were examined and removed under judicial supervision.
Separately, allegations have emerged that residents were required to pay an admission fee of Rs. 75,000, along with a monthly charge of Rs. 35,000 to the centre. Police have not commented on these claims.
The director was taken to the scene as part of ongoing investigations, while forensic experts continue examinations to determine the cause of the fire, which remains undetermined.Anguruwatota Police are conducting investigations.
By Norman Palihawadane and Nishan S Priyantha
News
CERT : AI-generated videos depicting Prez, PM lure public into financial scams
Sri Lanka CERT has issued a public warning over the circulation of artificial intelligence (AI)-generated videos falsely depicting President Anura Kumara Dissanayake, Prime Minister Harini Amarasuriya and several other prominent personalities to promote fraudulent investment schemes online.
According to complaints received by the national cyber security agency, the videos have been created using deepfake technology and are being used as part of attempts to defraud members of the public through financial scams.
The images of famous sports personalities and other public figures have also been misused in the deceptive content.
The agency has warned that similar AI-generated material has been used to spread false information relating to investment opportunities, employment offers, as well as matters concerning the country’s economy and tax policies.
According to Sri Lanka CERT, the videos are being widely shared across online platforms and frequently contain links urging viewers to make investments in return for purported profits.The agency has cautioned that these links may redirect users to fraudulent websites designed to steal personal information, financial data and money from unsuspecting victims.
Sri Lanka CERT has urged the public to exercise extreme caution when encountering such content online and advised against clicking on suspicious links or sharing personal information through unverified websites.
“The public should remain vigilant and avoid becoming victims of false information and online fraud schemes,” the agency said.
Sri Lanka CERT has also encouraged internet users to verify information through official sources before acting on any investment, employment or financial offers circulated via social media or other online platforms.
News
New tax law comes into force
Speaker Dr Jagath Wickramaratne on Wednesday endorsed the certificate on the Inland Revenue (Amendment) Bill, bringing the legislation into force as the Inland Revenue (Amendment) Act, No. 11 of 2026, Parliament sources said.
The Bill, which amends the Inland Revenue Act, No. 24 of 2017, was passed by Parliament on May 19.
The new law introduces a series of reforms aimed at modernising tax administration procedures, improving compliance and enforcement mechanisms, enhancing the accuracy of tax calculations and deductions, and strengthening transparency within the tax system.
The amendments also support broader economic policy objectives and include measures designed to reinforce anti-money laundering safeguards.Among the key provisions of the Act is the mandatory use of Taxpayer Identification Number (TIN) certificates for specified high-value financial transactions.
The legislation also introduces revisions to the calculation of taxable income, clarifies tax exemptions applicable to certain projects and business entities, and expands the scope for information disclosure to relevant authorities.
The amendments are expected to improve the efficiency of tax administration while facilitating greater accountability and regulatory oversight.With the Speaker’s endorsement of the certificate, the Inland Revenue (Amendment) Bill has now become law as the Inland Revenue (Amendment) Act, No. 11 of 2026.
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