A lucky few are unusually resistant to COVID-19. Scientists are trying to find a reason in their genes.

By Manuela Callari
Updated October 22 2021 - 1:52am, first published 1:00am
Represetntation of how coronavirus SARS-CoV-2 infects a human body cell. Picture: Shutterstock.

Some people get severely sick with COVID-19. Others don't even notice they've caught the infection.

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