Face masks played a key role in preventing the spread of coronavirus. In many countries, wearing them was mandatory and is still common practice across the globe.

Now, there is another virus making headlines: monkeypox.

Monkeypox is a rare viral infection, usually only recorded in areas of western and central Africa. In recent weeks however more than 1,000 cases have been recorded across 29 countries, according to Centers for Disease Control and Prevention (CDC) data.

For most people the virus is not dangerous—most make a full recovery. However as the world emerges from the worst of the coronavirus pandemic, discussions are circulating as to how best to prevent its spread.

Airborne transmission occurs when a virus travels through the air, in the form of small respiratory droplets caused by coughing or sneezing.

In a 2017 study during an outbreak in Nigeria, scientists found that two health care workers had become infected with the virus while having no contact with the patients they were treating. In these cases, it is likely that masks could have prevented transmission.

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