A team led by investigators at Massachusetts General Hospital has determined that Omicron BA.2 is weaker than both Delta and the original Omicron variant.

Harvard faculty discuss changes to views on school, work, winter’s likely surge, danger of "lethal inflexibility."

Harvard psychologist says pandemic worsened trend and screening, early intervention key to avoiding bigger problems.

MGH, Broad researchers develop Big Data tool that can predict which COVID variants will likely become dominant.

Reductions in surgical procedures precipitated by SARS-CoV-2 have not fully returned to their pre-pandemic levels, resulting in severe backlogs and deferred surgeries.

As studies signal serious health consequences, specialists scramble to treat acute cases and reinforce limits that define moderate use.

Harvard T.H. Chan School of Public Health Professor William Hanage explains how to stay on guard against subvariants, noting role of protective measures in transition to new pandemic phase.

Five former CDC directors convened for a panel about the future of the agency.

Subvariant is rising in the region, but no sign of dramatic surge in cases that other nations have experienced.

Harvard’s William Hanage, an epidemiologist and associate professor at the Harvard T.H. Chan School of Public Health, outlines what an endemic SARS-CoV-2 might look like.