Slimy snot is an important part of how your immune system wards off germs and fights back from infection.

Some coughs can last for weeks or even months following an upper respiratory infection. The good news – albeit not very satisfying – is that most eventually go away on their own.

An effective nasal vaccine could stop the virus that causes COVID-19 right at its point of entry. But devising one that works has been a challenge for researchers.

Snails use their slime to help them move, stop them drying out and to scare off predators.

A vast array of species, including people, use slime for a variety of essential bodily functions. Studying the genetic ancestry of slime surprisingly showcases the role of repetitive DNA in evolution.

More than 200 scientists wrote to the WHO, warning about aerosol transmission of the coronavirus. The WHO has since acknowledged the evidence but hasn't change its advice yet.