Vietnamese province quarantines people in direct contact with recovered COVID-19 patient retesting positive twice
A total of 36 people were sent to quarantine after they had contact with a positive retest case
Recovered COVID-19 patient has positive retest in Vietnam
He tested positive for the coronavirus on Saturday last week after four consecutive negative tests following his hospital discharge
All floormates negative for coronavirus after Saigon apartment resident has 'weak positive' retest
Recovered COVID-19 patients who retest positive are not infectious, according to a Vietnamese expert