Medical Daily speaks to Stuart Campbell Ray M.D. at Johns Hopkins School of Medicine about the various aspects of herd immunity.

The wildfires are devastating thousands of acres of land, destroying communities - and causing health problems to people who live hundreds of miles away.

Trials for 1 of the 9 contenders for a COVID-19 vaccine have been halted after a participant in AstraZeneca's vaccine trial fell ill.

In-person classes, online classes, hybrids - as of a few days ago, one-quarter of the country's 3,000 institutions still didn't know how to hold classes.

According to the WHO, 10 million people were diagnosed with tuberculosis worldwide in 2018.

Flying during the pandemic is risky, but the risk drops when planes aren't at full capacity.

News from August 17: Doubts about temperature as an early COVID-19 symptom, new spit test could replace swab testing for the virus, and NZ postpones election due to spike in cases.

News from Aug. 14: Flu vaccines, multisystem inflammatory syndrome in children, and new COVID-19 cases in New Zealand.

The coronavirus hygiene rules are simple, says the CDC's director, pleading with people to follow them; three high schools in Georgia show they weren't following these rules; the Russians claim...

Don't discourage moms from breastfeeding, even if they have COVID-19.

The U.S. prison population has significantly higher COVID-19 infection rates compared to the general population.

In response to a recent magazine cover depicting mental health treatment that drew criticism, Vogue Portugal said that the publication’s aim was to "shine a light" on the issue.