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COVID-19 jabs can take weeks to work, continued vigilance vital says experts

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ECONOMYNEXT – Vaccination against COVID-19 will help bring the death rate down and minimize severe disease but the jab can take weeks to be fully effective and vaccinated people can still spread the virus as asymptomatic carriers, a leading Sri Lankan microbiologist said.

Neelika Malavige, Professor in Microbiology at the Department of Immunology and Molecular Medicine, Faculty of Medicine, University of Sri Jayewardenepura, in a Government Information Department interview urged vaccinated Sri Lankans to stick to health protocols such as masking and regular hand washing.

“No one gets immediate protection right after the jab. It takes about 21 days for the body to produce antibodies after the first dose of AstraZeneca (Covishield). One dose does not provide sufficient protection, which is why we give two,” Malavige said.

Sinopharm also provides considerable protection but only two weeks after the second jab, the professor said. Sri Lanka has decided to give the two doses of the Chinese vaccine four weeks apart.

“In the meantime, you can still get infected and infect others,” she warned.

Taking a new wave of COVID-19 in Singapore as an example, Malavige said vaccinated airport employees were found to have spread the highly transmissible Indian strain of the virus in the city state.

“Everyone at the airport had received the Pfizer jab, so even when they tested positive for COVID-19, they didn’t report severe symptoms. But they still got infected and, as asymptomatic patients, carried the virus into the wider Singaporean society,” she said.

Echoing Malavige, Director of the Infectious Diseases Hospital Dr Ananda Wijewickrama said the primary objective of vaccination is to prevent critical conditions and death.

“People who get the jab can still get infected, but they have a lower chance of developing critical symptoms. It is important to follow health guidelines because we can be vaccinated and still spread it,” he said.

A mutated variant that has only been detected in Sri Lanka suspected to have been mutated from the original COVID-19 virus. The virus has been mainly detected in the Batticaloa district and in the Western Province and was the dominant variant before identifying the UK variant.

According to health authorities, this virus has a lower transmissibility and mortality rate making most of the patients asymptomatic.

Director of Allergy Immunology and Cell Biology Unit of the University of Sri Jayawardenepura Dr Chandima Jeewandara told the privately owned ABC media network that all three vaccines have been proven to be effective against the variants present in the country.

“International research has indicated that the efficacy rate can be changed with these mutations. However, any vaccine that shows an efficacy rate more than 50 percent is considered to be a successful vaccine and all three vaccines are proved to have a higher efficacy rate at the moment,” Jeewandara said.

Jeewandara predicted that Sri Lanka’s ongoing wave of COVID-19, with over 2,500 cases reported a day, will likely be contained by August this year.

“The virus has not changed the way it’s infecting people,” he said.

Vaccination and strict adherence to health protocols will contribute chiefly to containing the spread.

“We should provide at least one type of vaccine to the community.  If the vaccine is being given in your area get it immediately, Wear the mask, keep social distance and avoid any gatherings,” he said.

“The next moth is crucial to Sri Lanka. We expect this wave to be controlled by August,” he added.

Jeewandara said there is no guarantee the virus will disappear. Vaccination is the one strategy to take control of the situation, he added.



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Landslide Early Warnings issued to the districts of Colombo, Gampaha, Kalutara, Kegalle, Nuwara Eliya and Ratnapura

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The National Building Research Organisation [NBRO] has issued landslide early warnings to the Districts of Colombo, Gampaha, Kalutara, Kegalle, Nuwara Eliya and Ratnapura valid from 09:00 hrs on 23.05.2026 to 09:00 hrs on 24.05.2026

Accordingly,
LEVEL III [RED] landslide early warnings have been issued to the Divisional Secretaries Divisions and surrounding areas of Deraniyagala, Ruwanwella and Dehiowita in the Kegalle district and Ratnapura, Ayagama, Kuruwita and Eheliyagoda in the Ratnapura district.

LEVEL II [AMBER] landslide early warnings have been issued to the Divisional Secretaries Divisions and surrounding areas of Seethawaka and Padukka in the Colombo district, Attanagalla in the Gampaha district, Palindanuwara, Ingiriya, Bulathsinhala and Horana in the Kalutara district, Yatiyanthota in the Kegalle district and Pelmadulla, Kiriella, Kalawana, Nivithigala and Elapatha in the Ratnapura district.

LEVEL I [YELLOW] landslide early warnings have been issued to the Divisional Secretaries Divisions and surrounding areas of Divulapitiya and Mirigama in the Gampaha district, Mathugama and Agalawatta in the Kalutara district, Bulathkohupitiya in the Kegalle district, and Ambagamuwa in the Nuwara Eliya district.

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Most people seeking green cards must now apply from outside US

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The US has announced a new policy that means most immigrants seeking a green card will have to leave the country and apply at an embassy or consulate abroad.

The US Citizenship and Immigration Services (USCIS) said on Friday that people seeking a change in status must do so through consular processing outside of the country “except in extraordinary circumstances”.

The move – a part of the Trump administration’s effort to curtail illegal immigration – closes a loophole that had allowed visa holders and visitors to apply for a green card while still in the US.

Critics of the policy say the longstanding system allowed families to stay together during the lengthy application process.

The new method could also make it difficult or impossible for some immigrants who leave the country in hopes of gaining a green card to return.

The USCIS policy memo states that people such as students, temporary workers or people on tourist visas need to go through the Department of State from outside of the US.

“When aliens apply from their home country, it reduces the need to find and remove those who decide to slip into the shadows and remain in the US illegally after being denied residency,” USCIS said, making the system “fairer and more efficient”.

On X, the Department of Homeland Security, which oversees USCIS, said: “The era of abusing our nation’s immigration system is over.”

“We’re returning to the original intent of the law to ensure aliens navigate our nation’s immigration system properly,” USCIS Spokesman Zach Kahler said.

“From now on, an alien who is in the US temporarily and wants a green card must return to their home country to apply, except in extraordinary circumstances,” he continued.

Kahler said the policy allows the immigration system “to function as the law intended instead of incentivising loopholes” and that visits “should not function as the first step in the green gard process”.

It is unclear whether pending green card applications will be affected.

A spokesperson for the USCIS told the BBC that as the policy is rolled out, “people who present applications that provide an economic benefit or otherwise are in the national interest will likely be able to continue on their current path”.

“Others may be asked to apply abroad depending on individualised circumstances,” it said.

Being a green card holder, or lawful permanent resident, allows a person to live and work permanently in the US. Obtaining one is a multi-step process that can take months to several years.

There are currently more than a million legal immigrants waiting for approval on their adjustment of status green card applications, according to the Cato Institute’s director of immigration studies.

Kahler argued that following the law allows the majority of cases to be handled by the US State Department at consular offices abroad and frees up USCIS resources to focus on processing other cases that fall under its purview – such as visas for victims of violent crime and human trafficking, naturalisation applications, and other priorities.

The move is consistent with longstanding immigration law and immigration court decisions, the agency said. Immigration officers are being directed to “consider all relevant factors and information on a case-by-case basis when determining whether an alien warrants this extraordinary form of relief”.

Michael Valverde, who was a senior official at USCIS under both Republican and Democratic administrations until his departure last year, said to the BBC’s US media partner CBS that Friday’s announcement would “disrupt the plans of hundreds of thousands of families and employers annually”.

“This is a largely unprecedented move that will limit lawful immigration to the US greatly,” Valverde said. “People who followed the rules faithfully now face tremendous uncertainty.”

The Trump administration has instated bans or restrictions on citizens from nearly 40 countries.

Another policy from the administration this year has paused all visa issuances to immigrant visa applicants from 75 countries.

Overstaying a US visa can lead to deportation, ineligibility for future visas and re-entry bans lasting up to 10 years, according to the US State Department.

[BBC]

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Flood warning issued to the Aththanagalu Oya basin extended until 0600AM on Monday [25]

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The warning mentioned in the flood warning message No. 01 issued for the Aththanagalu Oya basin on 22.05.2026 at about 5.30 am will be extended for the next 48 hours.

It is requested that residents in the area and vehicle drivers running through those areas  pay high attention in this regard by the . Disaster Management Authorities are requested to take adequate precautions in this regard

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