Standard surgical masks don’t fully seal around a person’s face, allowing for more participle exposure. But simply adding two rubber bands may improve the seal and offer N95 respirator-level ...

A simple modification to a surgical mask using rubber bands can improve its protective seal against particle exposure to the level of an N95 respirator, a study suggests. Throughout the COVID-19 ...

High levels of exposure to the virus that causes COVID-19 may reduce or overcome the protection that vaccination and prior infection provides, according to a new study by researchers from Yale ...

Flu vaccine appears to be offering reasonable levels of protection this winter, with particularly strong levels in children, new data from the Centers for Disease Control and Prevention suggest. The ...

More than two years into the COVID-19 pandemic, scientists are still scratching their head over a basic question: Is there something they could measure to tell if people are protected? Researchers ...