Medical Health Cluster


Fourth Pfizer Dose Better for Severe Than Symptomatic COVID: Study

A fourth dose of the Pfizer-BioNTech vaccine is effective in reducing the short-term risk for COVID-19 infection, hospitalization, and death in people who got a third dose at least 4 months before, a large study published Wednesday shows. However, Paul Offit, MD, author of an editorial accompanying the study, told Medscape Medical News, […]

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Asymptomatic and Symptomatic SARS-CoV-2 Infections After BNT162b2 Vaccination in a Routinely Screened Workforce

A 2-dose regimen of the BNT162b2 vaccine (Pfizer-BioNTech) against SARS-CoV-2 was authorized in December 2020 based on reported 94.8% efficacy.1 Although an association between vaccination and a reduction in symptomatic disease has been well described, an association with asymptomatic infection remains unclear.2,3 Methods In March 2020, St Jude Children’s Research Hospital […]

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