If You're Immunocompromised, You May Need a Covid-19 Vaccine Booster, Fauci Says

President Joe Biden's chief medical advisor Anthony Fauci now says that vaccinated Americans with compromised immune systems may end up needing a covid-19 vaccine booster shot after all. The news comes as the country's number of covid-19 cases continues to rise, fueled by plateauing vaccination rates and the...