Researchers often call the polymerase chain reaction test – known as the PCR test – "the gold standard" for detecting the COVID-19 virus. The test is considered highly reliable and effective, and it ...

Here's what to know about the latest COVID strain - and how to tell if your at-home test is still good to use.

These days, many people use at-home COVID-19 tests when they feel ill, rather than going out to get tested by a professional. (That’s when they bother to test at all.) But for all their convenience, ...

The COVID-19 pandemic has seen the rise and fall of many variants, but nothing like BA.5. Previous subvariants of omicron have caused cascading surges as they outcompeted each other; now, BA. 5 is the ...

COVID-19 has been a part of life for nearly four years now and, with new variants like EG.5, or “Eris,” and BA.2.86, or “Pirola” popping up, it shows no signs of going away any time soon. But what ...

If you’re wondering if your fever, chills and body aches are a classic case of the flu or the dreaded COVID-19, your best option is to get tested. New variants are constantly circulating, as new ...

Because no additional PCR tests are conducted, the extent of false negatives in ... Im Sook-young, head of the Central Disease Control Headquarters' situation management team, urged, "Do not be ...