Do masks work? And if so, should you reach for an N95, a surgical mask, a cloth mask or a gaiter? Over the past year and a half, researchers have produced a lot of laboratory, model-based and ...
While the Centers for Disease Control and Prevention (CDC) and President Joe Biden on Tuesday announced that fully vaccinated people can go without masks while outdoors, officials noted that there are ...
The air quality in Delhi still remains under the ‘very poor’ category. And with winters making its way, the air pollution is likely to worsen. Amid this scenario, one of the best preventive measures ...
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