An Electron Micrograph Of The Norovirus, With 27 32Nm Sized Viral Particles. Norwalk Viruses And Related Caliciviruses Are Important Causes Of Nonbacterial Gastroenteritis In The United States. An Estimated 181,000 Cases Of This Type Of Food Poisoning Occur Annually. (Photo By BSIP/UIG Via Getty Images)
Health 18 hours ago

Why norovirus is so hard to kill: Here's how to protect yourself from ‘the perfect pathogen'

The common stomach bug is highly contagious, spreads on surfaces and through the air, and people can catch it every year.

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