First-time gun owners who bought a gun during the pandemic were more likely than established gun owners to report lifetime and past-year suicidal ideation.

COVID-19 lockdowns gave many teen girls a mental health boost by giving them a break from their busy lives. They even got more sleep.

What does the uptick of COVID among kids mean for trick-or-treating this year? An expert says enjoy Halloween, but keep some safety measures in mind.

While individual temperature checks have become common during the pandemic, a new device could quickly and efficiently detect fever in groups of people.

A new handheld electroporator that gets its inspiration from barbecue lighters and microneedles may simplify the delivery of vaccines, including for COVID.

Children 5-11 may soon be eligible for a COVID vaccine. An infectious disease expert explains why that's so important and how the rollout will work.

A new compound researchers studied in cells and mice holds promise as a new way to prevent infection or reduce the severity of COVID-19, they say.

New research documents a surge in US gun violence during the COVID-19 pandemic. "The pandemic has yielded harmful ripple effects that need to be addressed."

The waivers are going away: People in the United States could face substantial costs if they end up in the hospital with severe COVID-19 in 2021.

Two factors had an overwhelming influence on the speed of COVID's spread: population density and long-term exposure to air pollution.