Polymerase chain reaction (PCR) tests were the first available for spotting the coronavirus. They work by detecting the virus’s genetic material, and are very accurate. Then came rapid tests, also ...
AMERICA’S FEDERAL government–which had made the roll-out of vaccines its priority, rather than widespread testing–has said it will provide 500m rapid antigen tests free of charge to consumers, as the ...
A Covid-19 lateral flow test showing a negative result. Routine testing to identify those infected followed by efficient contact tracing, and supported isolation is still the most effective public ...
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