Relationships with peers, teachers, counselors protect mental health and boost learning, experts say.

A Chan School panel details need for broader health campaigns that also include various vaccines in conflict areas.

A new study finds that placentas of male and female fetuses respond very differently when a mother is infected with SARS-CoV-2 during pregnancy.

A new study confirms that children can carry high viral loads of SARS-Co-V-2, making them possible spreaders of current and emerging variants.

Looking at data from 15 million patients, researchers found that 39 percent had gained weight.

The delta variant’s increased infectiousness, coupled with remaining pools of unvaccinated people and those whose immunity has waned, are enough to drive a winter COVID-19 surge even in highly vaccinated parts of the country, a Harvard infectious diseases expert said.

Epidemiologist William Hanage predicts likely decline in U.S. COVID cases, epending on vaccination rates, control tactics, and the absence of variants.

Ofer Levy, who directs Boston Children’s Hospital’s Precision Vaccines Program, discussed the news that the Pfizer-BioNTech vaccine has been shown to be safe in school-age children, a potentially key development in the fight to bring the coronavirus pandemic under control.

Massachusetts General Hospital study links healthy plant-based foods with lower risks of getting of COVID-19 and of having severe disease after infection.

Investigators who developed the COVID-19 Simulator say the delta variant’s high transmissibility, low vaccination coverage in several regions, and more relaxed attitudes to social distancing will likely lead to a surge in COVID-19–related deaths in at least 40 states.