Among 11 patients in Thailand infected with severe acute respiratory syndrome coronavirus 2, we detected viral RNA in upper respiratory specimens a median of 14 days after illness onset and 9 days after fever resolution. We identified viral co-infections and an asymptomatic person with detectable virus RNA in serial tests. We describe implications for surveillance.
Keywords: 2019 novel coronavirus disease; COVID-19; SARS; SARS-CoV-2; Thailand; coronavirus; coronavirus disease; reverse transcription PCR; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.