For the first time in history we can track the evolution of a pandemic in real time. Influenza viruses are notorious for their rapid mutation and unpredictable behaviour.

Pandemic influenza is by nature an international issue; it requires an international solution.

The unique nature about the influenza virus is its great potential for changes, for mutation.

Thanks to television, for the first time the young are seeing history made before it is censored by their elders.

Based on assessment of all available information and following several expert consultations, I have decided to raise the current level of influenza pandemic alert from phase 4 to phase 5.

When is the next time? We don't have a time frame. I suspect it will likely to be November, if history is anything to go by.