New data from Addenbrooke’s Hospital in Cambridge suggests that a single dose of the Pfizer BioNTech vaccine can reduce by four-fold the number of asymptomatic SARS-CoV-2 infections. This implies...

A study of nearly 2,000 Marine recruits who went through supervised quarantine before starting basic training revealed several instances of asymptomatic transmission of SARS-CoV-2, the virus that causes...

Many care home residents who have COVID-19 infection are either asymptomatic or experience “atypical” symptoms—according to a new study from the University of East Anglia (UEA) and North...

Screening for symptoms of COVID-19 and self-quarantine are good at preventing sick people from spreading the coronavirus. But more and more evidence is suggesting that people without symptoms are spreading...

The Coronavirus without symptoms contagious? Currently, it is still unclear how many people have been infected unnoticed with the Coronavirus SARS-CoV-2. For this purpose, the proportion of the disease...