Vaccination

China's bet on homegrown mRNA vaccines holds back nation

China is trying to navigate its biggest coronavirus outbreak without a tool it could have adopted many months ago, the kind of vaccines that have proven to offer the best protection against the worst outcomes from COVID-19.

Diseases, Conditions, Syndromes

Mask mandate back on in Los Angeles as virus cases rise

Los Angeles County residents will again be required to wear masks indoors, regardless of their vaccination status, while the University of California system said that students, faculty and staff must be inoculated against ...

Diseases, Conditions, Syndromes

Herd immunity for Americans may be an elusive goal, experts say

(HealthDay)—While more than half of American adults have gotten at least one dose of a coronavirus vaccine, many scientists and public health experts now believe that herd immunity cannot be reached in the foreseeable future.

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