PLOS Medicine has published an article by Prescient’s Ivan Zhelyazkov.
“Occurrence and transmission potential of asymptomatic and presymptomatic SARS-CoV-2 infections: Update of a living systematic review and meta-analysis”
There is ongoing debate about the true proportion of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection that remains asymptomatic. This fifth version of a living systematic review takes into account the changing evidence and addresses three questions.
- Among people who become infected with SARS-CoV-2, what proportion does not experience symptoms at all during their infection?
- What is the infectiousness of asymptomatic and presymptomatic SARS-CoV-2 infection, compared with symptomatic, SARS-CoV-2 infection?
- What proportion of SARS-CoV-2 transmission in a population is accounted for by people who are asymptomatic or presymptomatic?