Gathering tomatoes or other fruits of the garden might not sound like a dangerous occupation, but with terrorism running rampant these days, even a walk thru the garden can require pre-emptive measures. In fact if you left the screen door open for a minute or so and heard a whiny frequency accompanied by a slight tickle it may already be too late, if that slight tickle was the allergic reaction of your skin cells to the Culex, Aedes or Anopheles mosquito, one of the several species that prefer humans, and are capable of transmitting microbial organisms to living cells.

Every year two million people die of malaria, which is transmitted by the Anopheles mosquito, but most of those deaths occur in Africa. In the U.S. malaria is considered rare, but the West Nile Virus is on the move.

The West Nile Virus is two millionths of an inch wide, smaller than most viruses. Viruses occupy a special taxonomy position in that they are not plant, animal or prokaryotic bacteria, and should not even be considered organisms because they are not free-living. (They cannot reproduce with out a host cell.)

The West Nile Virus has been studied for decades but did not arrive in the US until 1999. It is most similarly assocciated with other viruses that cause encephalitis, (inflammation of the brain), and it is highly fatal to avian species, corvids, mostly non-migratory birds distinguished by same sex characteristics. The West Nile Virus is also fatal to horses although there is a two-dose vaccine available for horses. It is not known when a vaccine will be discovered for humans or birds, so the best method of dealing with the virus is through avoidance. The West Nile Virus is past on to its animal host through the saliva of the female mosquito at the time of injection. The female mosquito needs a blood meal to complete reproduction, and pass on proteins to her offspring. The male mosquito does not eat blood but lives only on nectar and fruit juices.

Avoiding mosquitoes can be a big problem if you