Bird Flu Alarm



Understanding Avian Influenza

Viruses can be very unstable

Viruses can be very unstable

Viruses causing common cold change shape every few weeks, making vaccination impossible. Flu viruses nornally change shape every year or so, which means that people have to be vaccinated each year.

HIV is highly unstable. It is possible to find up to 25,000 differently shaped versions of the virus inside a single person who is infected. That's why we are still trying to find a vaccine despite 45 million deaths, 85 million infections and an epidemic that is out of control in many parts of the world.