With breakthrough COVID cases commonplace, experts set expectations about 'vaccine efficacy'

With breakthrough COVID cases commonplace, experts set expectations about 'vaccine efficacy'

Experts say they are no longer hopeful vaccines will stop the virus in its tracks, now that it's clear vaccinated people can develop mild disease and transmit illness to others.

With breakthrough COVID cases commonplace, experts set expectations about 'vaccine efficacy'

Experts say they are no longer hopeful vaccines will stop the virus in its tracks, now that it's clear vaccinated people can develop mild disease and transmit illness to others.

With breakthrough COVID cases commonplace, experts set expectations about 'vaccine efficacy'

Experts say they are no longer hopeful vaccines will stop the virus in its tracks, now that it's clear vaccinated people can develop mild disease and transmit illness to others.

With breakthrough COVID cases commonplace, experts set expectations about 'vaccine efficacy'

Experts say they are no longer hopeful vaccines will stop the virus in its tracks, now that it's clear vaccinated people can develop mild disease and transmit illness to others.

With breakthrough COVID cases commonplace, experts set expectations about 'vaccine efficacy'

Experts say they are no longer hopeful vaccines will stop the virus in its tracks, now that it's clear vaccinated people can develop mild disease and transmit illness to others.

With breakthrough COVID cases commonplace, experts set expectations about 'vaccine efficacy'

Experts say they are no longer hopeful vaccines will stop the virus in its tracks, now that it's clear vaccinated people can develop mild disease and transmit illness to others.