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

Are face masks helping people with allergies?

The masks people have been wearing to help prevent the spread of COVID-19 are also good at filtering out pollen and other allergens floating in the air. For people with allergic rhinitis or allergic asthma, who develop symptoms ...

Diseases, Conditions, Syndromes

Germany's Merkel points to variant risk as infections drop

Germany is seeing a promising decline in new coronavirus infections, but must take "very seriously" the risk posed by a more contagious variant and will have to be cautious whenever it starts easing its lockdown, Chancellor ...

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