Скачать или смотреть Understanding The Outbreak [1/5]: Viruses Explained

Viruses like Influenza and Ebola have been around for millions and millions of years. They are microscopic parasites that invade the living cells of hosts, forcing these cells to produce copies of itself at an amazing rate. This is what we know as an 'infection'.

A less-known fact about viruses is how small they actually are. For example, at 45 nanometres in length, the hepatitis virus is 40 times smaller than E. coli bacteria, allowing it to pass through filters that would trap most other microscopic life forms.

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