Nation ‘Keep your guard up’: CDC studies show waning COVID-19 vaccine efficacy as delta variant sweeps US August 25, 2021Jeanine Santucci, USA TODAYComments Off on ‘Keep your guard up’: CDC studies show waning COVID-19 vaccine efficacy as delta variant sweeps US Unvaccinated people in Los Angeles were more than 29 times more likely to be hospitalized than the vaccinated, according to a CDC study.
