Time of day may be important for how effective the COVID-19 vaccine is. A new study suggests middle of the day may be be best.

"...frequent COVID surveillance testing protected nursing home residents and undoubtedly saved lives," says Brian McGarry.

"...many of the nanobodies we have identified with this method target variants-of-concern, so they have real therapeutic potential."

Interviews with over 90 patients and caregivers in the US and Australia highlight how COVID-19 disrupted cancer care in 2020 and 2021.

Three years into the pandemic, loneliness and isolation are finally coming down among older adults, but still remain high, researchers find.

Individuals' tendency to plan for the future plays a surprising role in their vaccine hesitancy, a study finds.

Despite stories to the contrary, the pandemic has had limited effects on mental health. Researchers say it's a testament to human resilience.

Convalescent plasma can prevent hospitalizations and save lives, both for COVID-19 and for the next viral pandemic to arrive, researchers say.

Deaths during pregnancy and postpartum increased 35% early in the pandemic. "We suspect these deaths are just the tip of the iceberg..."

"The patients are sick not because of the virus," says Jean-Laurent Casanova. "They're sick because they excessively respond to the virus."