A PCR test is able to detect a Covid-19 infection even before the person becomes infectious. PCR testing can detect very small amounts of virus - and so can be effective over a longer period of a ...

SIOUX FALLS, S.D. (KELO) — According to the South Dakota Department of Health, nearly 12,000 at-home COVID-19 test kits have been ordered directly through the DOH website in the last year.

As the holidays come into full swing and many are traveling, more people are interested in taking an at-home COVID test before their travels or gatherings with family and friends.

Even though the virus may mutate, the PCR tests are generally designed to detect multiple regions that do not change significantly across variants, making them effective across different strains ...

As the holidays come into full swing and many are traveling, more people are interested in taking an at-home COVID test before their travels or gatherings with family and friends.