Wide variation in the amount or infectiousness of SARS-CoV-2 among people in early stages of COVID-19 may be an explanation for the phenomenon of “superspreaders,” according to a study by UMass Chan researchers and collaborators from several institutions that was recently published in Nature Microbiology . The research provides an in-depth view of SARS-CoV-2 infection through serial viral testing by several methods: PCR test, antigen test and viral culture to measure viral growth.
