Biomedical technology

Facemasks block expired particles, despite leakage at edges

A new study from the University of California, Davis and the Icahn School of Medicine at Mount Sinai confirms that surgical masks effectively reduce outgoing airborne particles from talking or coughing, even after allowing ...

Diseases, Conditions, Syndromes

CDC director says mask turnaround based solely on science

The head of the Centers for Disease Control and Prevention on Sunday defended the decision to ease mask-wearing guidance for fully vaccinated people, stressing that increasing political pressure had nothing to do with the ...

Diseases, Conditions, Syndromes

New data could inform youth-focused pandemic messaging

Now that teens and young adults across the country account for an increasing share of COVID-19 cases, and many have become eligible for vaccination, several recently published studies based on polls of this age group provide ...

Diseases, Conditions, Syndromes

2 states announce new virus restrictions as US cases hit 11M

Michigan and Washington on Sunday joined several other states in announcing renewed efforts to combat the coronavirus as more than 11 million cases of COVID-19 have now been reported in the United States—with the most ...

Diseases, Conditions, Syndromes

US records new high of over 200,000 COVID cases in 24 hours

The United States on Tuesday far exceeded its previous daily record of new COVID-19 cases, adding 201,961 cases in 24 hours, according to the tally compiled by Johns Hopkins University.

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