Five years after Donald Trump declared a national COVID emergency, here's what the research says about face masks.

KN95 masks are regulated by the Chinese government ... and other first responders who are at high risk of exposure to COVID-19. If N95 masks are not available, the CDC recommends using a well ...

This week marks five years since March 13, 2020, the day President Donald Trump declared a national state of emergency over the novel coronavirus ... wear cloth masks in public to slow the spread ...

Peruvian health authorities Wednesday announced the lifting of the state of emergency declared amid the COVID-19 pandemic as well ... the mandatory use of a KN95 mask or a three-fold surgical ...

Introduction: The global coronavirus disease (COVID-19) pandemic of 2020 caused by SARS-CoV-2 resulted in a shortage of filtering facepiece respirators (FFRs), such as N95 and KN95 masks.

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If you receive a message that you were exposed to COVID-19: Monitor your health. Seek medical care or testing for COVID-19 if you have symptoms consistent with a respiratory virus. Wear a high-quality ...

What's our relationship with masking five years after the pandemic started? (Photo Illustration: Yahoo News; photos: Getty Images) ...

Boston.com readers said the pandemic remains an ever-present threat to public health, despite much of society having moved on.

Few objects symbolize the pandemic as well as the N95. Impossible to find until they were ubiquitous, the double-strapped ...

If you receive a message that you were exposed to COVID-19: Monitor your health. Seek medical care or testing for COVID-19 if you have symptoms consistent with a respiratory virus. Wear a high-quality ...