At this point in the pandemic, you or someone you know has probably received at least one COVID-19 test. But do you know which kind of test you got and the strengths and weaknesses of these different ...

SYDNEY, AUSTRALIA - SEPTEMBER 29: In this photo illustration a man uses a COVID-19 rapid antigen test kit at home on September 29, 2021 in Sydney, Australia. Australians will be able to use rapid ...

Polymerase chain reaction (PCR) and rapid (antigen) tests for COVID-19 both involve taking a swab. Results for a PCR test take longer, as it needs to go to a laboratory. It is more costly but tends to ...

If I am convinced that my patient has COVID and the test comes back negative, we will leave that patient in isolation until we can repeat that RT-PCR test, just to make sure we’re not exposing our ...

In winter, various respiratory infectious diseases such as influenza (flu), pneumonia, and COVID-19 are prevalent at the same time. This is because low temperatures and dry air create an environment ...