Diseases, Conditions, Syndromes

Filter could curb airborne spread of COVID-19 virus

A filter made from polymer nanothreads blew three kinds of commercial masks out of the water by capturing 99.9% of coronavirus aerosols in an experiment.

Dentistry

Japan tooth patch could be end of decay

Scientists in Japan have created a microscopically thin film that can coat individual teeth to prevent decay or to make them appear whiter, the chief researcher said.

Diseases, Conditions, Syndromes

Box fan air cleaner greatly reduces virus transmission

Improved ventilation can lower the risk of transmission of the COVID-19 virus, but large numbers of decades-old public school classrooms lack adequate ventilation systems. A systematic modeling study of simple air cleaners ...

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