A Harvard Chan School study has found a link between optimism and hypertension, describing the positive force as having a “protective effect” on individuals, including those in combat.

How We Feel app lays groundwork to use big data to understand and predict coronavirus infection.

Shifting the U.S.'s COVID-19 testing strategy to emphasize inexpensive, daily tests would break national transmission chains within weeks, an infectious disease testing expert said.

Anthony Fauci, one of the government’s top authorities on the coronavirus pandemic, said that simple measures including wearing masks, avoiding bars, and spending time outdoors can tame the pandemic, but only if widely adopted.

Officials in states that appear to have COVID-19 under control should keep an eye on a slow rise in cases, and take the chance to enact modest measures before case numbers begin to rise rapidly again, a Harvard expert said.

The startup company Vesigen will develop and commercialize the drug-delivery technology created in the lab of Harvard Chan School Professor Quan Lu.

The first study to examine life expectancy across more than 65,000 census tracts in the U.S. showed significant disparities within counties and states.

As school officials worry about whether they can safely reopen their districts in the fall, Joseph Allen, a Harvard healthy buildings expert has an answer: yes.

Cellphone mobility data shows that most Americans have put the coronavirus lockdown in the rearview mirror and are moving about at nearly the same rate as they were before the pandemic began, according to a Harvard epidemiologist who studies such data.

Tracking mobility of individuals offers hints of whether a problem is rising or falling.