Staying safe during coronavirus

The COVID-19 pandemic has changed our everyday lives around the world. Regular hand cleaning, routine temperature checks, mask wearing and social distancing are all now a feature of any trip away from our homes. How does the physics behind these measures stack up?

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Hand cleaning

We are all cleaning our hands more regularly during the COVID-19 pandemic. Why does it make a difference? And what is the best way to clean our hands?

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Temperature checking

Until instant COVID-19 tests are available, simple checks — like filling out health questionnaires and taking people’s temperature — are being used to help control the spread of the virus. A temperature check may feel reassuring, but is it a reliable way to detect COVID-19?

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Mask wearing and social distancing

Social distancing and mask wearing are important ways we can help limit the spread of COVID-19. Can physics tell us what distance is a safe social distance, and which masks are really effective?

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