When a virus invades a cell, it drives the cell cycle full speed ahead in order to manufacture more viruses.

Experts believe zinc prevents the cold virus from invading the cells of your body.

There, the virus invades the cells lining the airways and the alveoli.

The schizont divides into four macrogametocytes which then invade the cells of the gut wall where they mature into macrogametes.

This allows the bacteria to invade the cells through the zipper mechanism.