Symptomatic COVID patients are more contagious, study finds

Individuals with COVID-19 are most likely to spread the virus to close contacts two days before the onset of symptoms to three days after symptoms appear, and the risk of transmission is highest when patients had mild or moderate disease severity, according to a new study.

from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/08/210826170205.htm