Singapore and Hongkong are examples at this early time in the epidemic, of a recrudescence of cases.
“Hong Kong, Singapore and Taiwan — once heralded for early successes in battling the pandemic — are now confronting a new wave of coronavirus cases, largely fueled by infections coming from elsewhere. Singapore is also seeing a rise in local transmissions, with more than 400 new cases in the past week that have been linked to migrant worker dormitories.”
Medicynic 