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Even four months after first jab antibodies generated by Covishield vaccine remain active – expert

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By Rathindra Kuruwita

A significant amount of antibodies created by the Covishield COVID-19 vaccine remained even 16 weeks after receiving the first jab, Dr. Chandima Jeewandara of the Allergy, Immunology and Cell Biology Unit, Department of Immunology Molecular and Molecular Medicine of the University of Sri Jayewardenepura said yesterday.

“We studied this because it was a serious issue due to hundreds of thousands of people have not received the booster doses yet. Our research shows that a significant amount of antibodies remains in those who received the first dose. This is good news and I think we can give them the second dose. But we have to conduct tests.”

Dr. Jeewandara said they would soon release a report on antibodies that developed due to the Sputnik-V vaccine, and a similar report on the Moderna vaccine too would be released in a month or two.

Dr. Jeewandara said that 500 Sputnik-V recipients and 600 Moderna recipients were being studied.

Commenting on a recent study by the department on the development of antibodies by those given the Sinopharm vaccine where it was found that vaccine induced antibody responses in over 95% of individuals, similar to levels seen following natural COVID-19 illness, Dr. Jeewandara said that the study had addressed a key concern people had about Sinopharm.

“One of the biggest problems is that we have little data on Sinopharm. This study tries to fill that,” he said.

Dr. Jeewandara said that the university had started measuring efficacy and antibodies from vaccines since Sri Lanka started administering them. The first vaccine they started studying was Covishield, he said.

“Let me explain the process. We take a blood sample before vaccination. We do that to identify antibody levels before vaccination. In Sri Lanka most people who contract COVID19 don’t develop symptoms. So we do this as a baseline blood test. Then we get a second sample before the second jab is given and a third sample at a time the manufacturer recommends as the best time to check antibodies.”

In the case of Sinopharm, the third sample was taken two weeks after the second jab. The researchers look at the level of antibodies and T-cell response because they are the two main tools to fight or prevent the virus or prevent serious illness, he said. A person can either get antibodies from contracting the virus or through vaccination, Dr. Jeewandara said.

“These are not efficacy tests. Efficacy is measured in a controlled clinical trial and is based on how many people who got vaccinated developed the ‘outcome of interest’ (usually the disease) compared with how many people who got the placebo (dummy vaccine) developed the same outcome. What we did was to test antibodies but this hints at vaccine efficacy too. Immunity and protection tend to be similar in both tests.”

Dr. Jeewandara said that Sri Lanka was an interesting case study because most Sri Lankans were genetically similar and that one variant usually dominates the country. However, Sri Lanka used several vaccines, giving the country an excellent opportunity to find out what vaccine was best.

“We also studied Covishield and over 90% of people vaccinated with it had developed antibodies,” he said.



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Prison mayhem leaves at least 26 dead; five officers killed in revenge violence

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Police and STF personnel rushing an injured prison officer to an ambulance after yesterday’s clash at the Negombo Prison.

At least 26 people, including five prison officers and 20 inmates, have been confirmed dead following violent unrest at Negombo Prison, hospital sources said yesterday, as authorities struggled to restore full control over the facility.

According to unconfirmed reports the prison officers were killed by rioters yesterday morning,  in retaliation, and weapons carried by those officers were grabbed by them.

Negombo General Hospital Director Consultant Dr. Pushpa Gamlath said nearly 100 injured persons had been admitted, following the clashes, and eight of the critically wounded had been transferred to the National Hospital, in Colombo, for further treatment.

The violence, which initially broke out on Sunday (5) between remand prisoners and convicted inmates, left two inmates dead and 38 others injured before being temporarily brought under control.

However, tensions flared again on Monday (6), with prison officials reporting renewed unrest inside the facility despite earlier assurances that the situation had stabilised.

Police said the initial confrontation was triggered by a dispute linked to the exposure of an alleged drug trafficking network, operating within the prison, and was reportedly orchestrated by a drug trafficker, identified as Suresh, who is said to have links to an underworld figure known as ‘Booru Moona’.

The violence rapidly escalated, with female inmates staging a protest on the Prison roof in support of those involved in the clashes, while relatives gathered outside demanding information on detainees. Police later facilitated visits for selected family members to hospitalised inmates.

The Negombo Prison, which houses around 1,800 remand and convicted inmates, descended into widespread disorder as rival groups clashed, with reports indicating that the violence later spread beyond the initial confrontation.

Authorities said rioting inmates had allegedly seized firearms during the renewed unrest on Monday, prompting heightened security measures.

The Sri Lanka Air Force deployed drones for aerial surveillance and a Bell 412 helicopter to monitor the situation, while additional military personnel were sent to reinforce security around the prison.

Prisons Department spokesperson A.C. Gajanayake said a special investigation team had been appointed, under the direction of the Commissioner General of Prisons, to probe the incident, while a separate police investigation is also underway.

Justice Minister Harshana Nanayakkara told The Island that he had called for a detailed report on the disturbances.

By Norman Palihawadane

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Cleaner, cheaper electricity gathers momentum with rapid progress in 50 MW Mannar wind power project

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Sri Lanka’s drive towards cleaner and cheaper electricity gathered fresh momentum with the reported rapid progress in the 50 MW Mannar Wind Power Project, which is expected to produce the lowest-cost wind-generated electricity in the country’s history while saving billions of rupees in annual fuel imports.

The Ministry of Energy announced that the first wind turbine for the project had already arrived in the country, while the remaining turbine components have reached the Port of Trincomalee and are currently being unloaded, signalling a major milestone in the construction of one of the country’s key renewable energy ventures.

The project, inaugurated by President Anura Kumara Dissanayake, in January this year, is expected to become a cornerstone of the government’s strategy to transform Sri Lanka’s electricity sector by expanding renewable energy generation and reducing dependence on imported fossil fuels.

According to the Ministry, electricity generated by the Mannar wind farm will be purchased at USD 0.0465 (approximately Rs. 14.37) per unit, making it the lowest tariff ever secured for wind-generated electricity in Sri Lanka.

Energy experts say the competitive tariff demonstrates the growing economic viability of renewable energy and could help stabilise future electricity prices.

The Ministry also estimates that once the wind farm is connected to the national grid, Sri Lanka will save approximately Rs. 4.7 billion annually by reducing the import of fossil fuels required for thermal power generation, easing pressure on the country’s foreign exchange reserves.

The Mannar project is expected to support the government’s ambition of substantially increasing the contribution of renewable energy to the national electricity mix, by 2030, while helping Sri Lanka move towards its long-term goal of achieving net-zero carbon emissions by 2050.

Hayleys Fentons PLC, selected through an international competitive bidding process, is responsible for the installation and maintenance of the wind turbines.

The National System Operator (NSO), operating under the Ministry of Energy, will oversee the integration and management of electricity generated by the project within the national grid.

By Ifham Nizam

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Tech-enabled trafficking, fake foreign jobs pose growing threat, MPs told

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Opposition Leader Sajith Premadasa speaks to Public Security and Parliamentary Affairs Minister Ananda Wijepala during a special awareness programme on human trafficking held in the House recently

Human trafficking has become increasingly sophisticated, with deceptive overseas employment offers, fraudulent recruitment practices and technology-enabled recruitment emerging as major threats that require a coordinated national response, Members of Parliament were told at a special awareness programme held in the House recently.

Addressing the programme, Secretary to the Ministry of Defence and Chairman of the National Anti-Human Trafficking Task Force, retired Air Vice Marshal Sampath Thuyacontha, said trafficking in persons had evolved significantly over the years and was now closely linked to organised transnational criminal networks.

He warned that fake foreign employment opportunities, fraudulent recruitment agencies, online recruitment platforms, forced labour, sexual exploitation and, in some instances, the use of victims for forced criminal activities had become key challenges confronting authorities.

The awareness programme organised jointly by the National Anti-Human Trafficking Task Force of the Ministry of Defence and Parliament, was aimed at strengthening legislators’ understanding of emerging trafficking trends, the legal and policy framework governing the issue, and the role of Parliament in strengthening anti-trafficking legislation.

MPs were also briefed on the National Strategic Action Plan on Combating Human Trafficking (2026-2030), which focuses on preventing trafficking, identifying and protecting victims, strengthening the criminal justice response and improving coordination among State institutions.

Special emphasis was placed on the growing use of digital platforms for recruitment, deceptive migration practices, labour exploitation and the coercion of victims into criminal activities.

The programme featured presentations by Additional Solicitor General Haripriya Jayasundara, PC, and State Counsel Sajith Bandara of the Attorney General’s Department.

The event, held under the patronage of Deputy Chairperson of Committees Hemali Weerasekara, was attended by Opposition Leader Sajith Premadasa, Public Security and Parliamentary Affairs Minister Ananda Wijepala, Deputy Defence Minister retired Major General Aruna Jayasekara, Members of Parliament and senior officials of the Ministry of Defence, the National Anti-Human Trafficking Task Force and Parliament.

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