Ziyad Al-Aly is chief of research and development at VA St. Louis Health Care System and a clinical epidemiologist at Washington University in St. Louis. Since 2020, the condition known as long ...

Compared to the flu vaccine, theefficacy ratesof COVID-19 vaccines are much higher — Pfizer has shown to be 95% effective within individuals without previous infection, Moderna is 94.1% effective ...

Paul Offit is not an anti-vaxxer. His résumé alone would tell you that: A pediatrician at Children’s Hospital of Philadelphia, he is the co-inventor of a rotavirus vaccine for infants that has been ...