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Saturday, November 12, 2016

Mosquitoes and the West Nile Virus

The mosquito whitethorn seem like a fairly harmless dirt b all told; however, it evict be extremely dementedly when it is a postman of the western Nile Virus (WNV). The watt Nile Virus is a deadly microscopic organism that has latterly spread passim the world. This computer virus is unique in that it tooshie infect multiple species. The westward Nile virus is not scarce able to infect humans, just animals like razzings and horses. It is transmitted end-to-end the different species through mosquito acutenesss. Mosquitoes that be infected with the infirmity bite organisms, which then transmit the indisposition to them. The West Nile virus can have major disconfirming impacts on the biodiversity of ecosystems and on the closely being of society.\nThe West Nile virus was first sight in the African country of Uganda in 1937. Since the 1950s it has spread throughout Africa, Europe, Australia, and the Middle East. In 1999 scientists discovered the virus for the first date in the Western hemisphere when it killed hundreds of birds in the northeast coupled States. The disease has since spread to horses and humans. The genus Culex tarsalis mosquito is the most common carrier of the disease. It causes flu-like symptoms, in particular fever and headaches. These symptoms commonly appear within 3 to 15 days of spotting the disease. Since 1999, 23,000 Americans have snubed the disease and 962 have buy the farmd; 3 to 15 percent of people who contract the virus die from it.\nThe West Nile virus primarily affects birds, especially blue jays and crows. The decline in population of these birds has had severe effects on the biodiversity of ecosystems. Almost all crows that contract the disease die because of it. The crow population has change magnitude by 45% since 1999. In the case of the blue jay its first of all role in ecosystems is to spry different bird species when a predator such as a hawk or an eagle is approaching. This helps other bird species such as sparrows and warblers escapism predators. With the decline of blue jays ...

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