(YAHOO/KAKE) - A new study showed that just 6.1% of Sweden's population had developed coronavirus antibodies by late May, a lower measure than some of its health agency's earlier models had predicted.

STOCKHOLM, Nov 12 (Reuters) - Immunity to COVID-19 in Sweden is likely lower than previously estimated, the country's top epidemiologist and architect of its unorthodox pandemic strategy said on ...

An infectious disease specialist took the time to explain what herd immunity is, how it works and when it might affect the spread of COVID-19. Dr. Frank Esper works for the Cleveland Clinic Children's ...

As scientists learn more about the virus, they say herd immunity won't work. Early in the pandemic, scientists and public health experts leaned on their experience with other viruses to make ...