You may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen test, it may not detect COVID after nine days, but it is more accurate for ...

Silicon Valley medical equipment startup Visby Medical has received Emergency Use Authorization by the U.S. Food and Drug Administration for a portable PCR COVID-19 test kit, the first company to do ...

[Asia Economy Reporter Ki Ha-young] Starting from the 1st of next month, cohabitants of confirmed cases will be switched to passive monitoring regardless of their vaccination status. Unvaccinated ...