Swine Flue H1N1

World Health Organisation took us to Phase 6 on June 11, which only means that they see the distribution of the virus across the globe as being at levels associated with a flu pandemic, the first such declaration since 1968. The virus itself has not become any worse nor have the chances of any individual dying from the disease increased.

Swine flu is still with us although the media hype has died down. There have been numerous cases and many deaths, but nothing on the scale of the millions predicted early on. Could this first wave strain now be evolving into a more virulent form that will affect the northern hemisphere more severely after the summer is over?

I’ve previously discussed the many latent diseases in hosts as rodents, birds, and cattle. Many of these are ready and willing to make the species leap to humans given the opportunity. For the last ten years or so bird flu and Asia have been the focus of much research and concern. However, the wave of swine flu (H1N1) infections that began in March-April 2009 in Mexico highlight the fact that a potentially lethal strain of virus can emerge from other species and not necessarily in Asia.

Currently, not all the deaths attributed to swine flu have been definitively associated with type A H1N1 influenza, the actual mortality rate could be as low as 1% or as high as 6.5% depending on how you count.