Study examines asymptomatic, presymptomatic and symptomatic transmission dynamics of SARS-CoV-2

By | July 13, 2021
A new preprint, available on the medRxiv* server, describes how researchers found at least a third of infected individuals to be asymptomatic, but that a fifth of them successfully passed on the virus to others. In comparison, about a quarter of symptomatic cases did so, especially when the symptoms included fever, cough and shortness of breath. In these circumstances, up to 30% of them transmitted the virus.