Diseases, Conditions, Syndromes

COVID-19 mask study finds layering, material choice matter

Wearing a face mask can protect yourself and others from COVID-19, but the type of material and how many fabric layers used can significantly affect exposure risk, finds a study from the Georgia Institute of Technology.

Diseases, Conditions, Syndromes

Three-layered masks most effective against large respiratory droplets

If you are going to buy a face mask to protect yourself and others from COVID-19, make sure it's a three-layered mask. You might have already heard this recommendation, but researchers have now found an additional reason ...

Diseases, Conditions, Syndromes

Time to wear a better mask, experts say

As new, more transmissible variants of the coronavirus spread, experts say it's time to consider using a medical-grade respirator, or wearing a surgical and cloth mask together.

Diseases, Conditions, Syndromes

For some, GI tract may be vulnerable to COVID-19 infection

No evidence so far indicates that food or drinks can transmit the virus that causes COVID-19, but new research at Washington University School of Medicine in St. Louis suggests that people with problems in the upper gastrointestinal ...

Diseases, Conditions, Syndromes

Hand-held device measures aerosols for coronavirus risk assessment

Because of the role they play in coronavirus transmission, understanding aerosol concentrations and persistence in public spaces can help determine infection risks. However, measuring these concentrations is difficult, requiring ...

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