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SINGAPORE - Singapore plans to tap the private sector to significantly ramp up its capacity to test for Covid-19 infections.
This will enable it to carry out more than 21,000 tests daily in dormitories and regional screening centres, amid ongoing efforts to vaccinate the country s population and avoid subsequent outbreaks.
The Health Promotion Board (HPB) wants to appoint vendors to administer Covid-19 polymerase chain reaction (PCR) swab tests in 41 foreign worker dormitories and 16 regional screening centres, tender documents seen by The Straits Times show. They will also have to carry out the testing of samples with licensed laboratories to perform antigen rapid tests (ART) and provide phlebotomy services, or serology tests.
SINGAPORE - People who have recovered from Covid-19 can get reinfected with the virus, as immunity wanes with time, even if they will likely be protected for a time, experts say.
Those who recover from the disease would typically mount a neutralising antibody response for a period of time, which generally protects from reinfection, said Professor Teo Yik Ying, dean of the National University of Singapore s (NUS) Saw Swee Hock School of Public Health.
Neutralising antibodies are so called because they bind to specific, important sites of the virus, which prevents the coronavirus from infecting a patient s cells. However, this immune response has been shown to wane with time, and the previous reports of reinfections in South Korea, Hong Kong, and other parts of the world typically happen after three months of the first infection, noted Prof Teo.
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