Tuesday, October 11, 2005

Industrialized Greed Produces Pandemics

I have a sideline answering questions about radioactivity. Recently, a friend asked: does prolonged exposure to radioactive weapon residue (like depleted uranium dust) lead to outbreaks of mutated strains of viruses, such as Avian Flu?

This leads to the further question of why pandemics, like the killer 1918 "Spanish Flu" -- which originated in the United States -- arise in the first place.

Avian Flu occurs naturally as several families of viruses in birds, who often do not get sick but merely host the disease, like Typhoid Mary. It is noted that certain of the Avian Flu virus types are evolving -- adapting -- rapidly. One of these strains, H5N1, was able to make a jump to humans and overpower the human immune system. This was the outbreak of 1997.

While the 1997 outbreak killed millions of birds and scores of people, this particular strain of the virus had not acquired the genes necessary to make it similar to the usual human flu viruses, and so it was not easily transmitted from person to person. If -- or when -- an Avian Flu viral strain does combine with a typical human flu virus, gaining the genes needed to make it easily infectious by breath: sneezes, coughs and exhalations, then we might see a pandemic. Since the Avian flu that has infected people since 1997 is quite lethal (up to 50% mortality) as compared to the mild forms of human flu we are accustomed to, an easily transmitted form could produce another great killing like that of 1918-1919. Such a bird-carried, human-infecting disease would have a vast incubator in the many industrial concentrations of domestic fowl maintained for human consumption.

I've not seen any credible connection between radioactivity and Avian Flu.

In these last few days it has been announced that researchers have been able to replicate the 1918 flu virus, H1N1. It is kept under tight security in government laboratories. The raw material for the replication was viral RNA extracted from lung tissue of 1918 flu victims; some of this from preserved specimens, and some from cadavers buried in Alaskan permafrost (and none too soon, as it's starting to melt up there).