A one-year increase in alcohol consumption in the U.S. during the COVID-19 pandemic is estimated to cause 8,000 additional deaths from alcohol-related liver disease by 2040.

Harvard Med specialist says cases of remdesivir-resistant disease seem rare, may not become big issue.

President's chief medical adviser outlines early Omicron findings, urges more robust effort to bring pandemic under control, including through global vaccination.

Early findings on immune escape and transmissibility, combined with danger posed by Delta, heighten urgency of vaccination, testing, other safety measures.

As governments and health officials navigate pandemic, researchers stress the danger that comes with bad information.

An observational study finds that antibody levels are higher when health care workers received the SARS-CoV-2 vaccine in the afternoon.

A new study led by Harvard researchers models future SARS-CoV-2 mutations and forecasts their ability to evade immune defenses developed by vaccines and antibody-based treatments.

Breakthrough COVID-19 cases in vaccinated people may be less likely to spread infection because virus is shed for a shorter period of time as opposed to infections in unvaccinated people.

Mary Bushman, a research fellow in the Department of Epidemiology at Harvard Chan School, co-authored a recent paper that modeled variant threats.