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What is a black widow spider?

Wednesday, 18 April 2007 16:22 administrator
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A black widow spider is a small, shiny black button-shaped spider with a red hourglass mark on its abdomen and that prefers warm climates. Widow spider bites release a toxin that can cause damage to the nervous system, thus, emergency medical treatment is necessary.
Last Updated ( Wednesday, 13 February 2008 23:25 )  
Flu Terms DefinedSeasonal (or common) flu is a respiratory illness that can be transmitted person to person. Most people have some immunity, and a vaccine is available.
Avian (or bird) flu (AI) is caused by influenza viruses that occur naturally among wild birds. Low pathogenic AI is common in birds and causes few problems. Highly pathogenic H5N1 is deadly to domestic fowl, can be transmitted from birds to humans, and is deadly to humans. There is virtually no human immunity and human vaccine availability is very limited.
Flu Terms Defined
Pandemic flu is virulent human flu that causes a global outbreak, or pandemic, of serious illness. Because there is little natural immunity, the disease can spread easily from person to person. Currently, there is no pandemic flu.

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