Diseases, Conditions, Syndromes

US extends mask rule for travel while weighing new approach

Federal officials are extending the requirement for masks on planes and public transportation for one more month—through mid-April—while taking steps that could lead to lifting the rule.

Diseases, Conditions, Syndromes

Subways sparkle, but does cleaning decrease COVID-19 risk?

Mass transit systems around the world have taken unprecedented—and expensive—steps to curb the spread of the coronavirus, including New York shutting down its subways overnight and testing powerful ultraviolet lamps to ...

Medical research

Food's transit time is a key factor in digestive health

The time it takes for ingested food to travel through the human gut – also called transit time – affects the amount of harmful degradation products produced along the way. This means that transit time is a key factor ...

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