Summer COVID cases rise in DC area, local health expert pushes for vaccinations as Biden tests positive WTOPCovid summer wave spreads across U.S., even infecting Biden The Washington PostCOVID reaches ‘very high’ level in CA, CDC wastewater data show; COVID on the rise in LA County KABC-TVSurging California wastewater readings signal ‘very high’ COVID levels San Francisco ChronicleWhat to Know About California’s Covid Surge The New York Times