Lecture 39 - Lecture 39 Avian Flu II 1) Dengue - sustained...

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Lecture 39 – Avian Flu II 1) Dengue - sustained transmission among humans is aided by a vector (ie. Mosquito) which helps transmit the virus 2) Gold mining – miners dig pits, which are good habitats for mosquitoes – high density of humans and mosquitoes in the same area. There are many camps throughout the forest, transmitting malaria between workers, and bringing malaria home. 3) Global Commerce and Travel a) West Nile Virus – mosquitoes feed on the bird, obtain virus. If they feed on humans or other animals, such as horses, they transmit the virus. b) Introduced to the U.S. around 1999 in NY, in 2001 it spread to the east coast, 2006 all over the country. Could have been from an importation of plants (mosquito larvae), birds who were infected, or a mosquito on a plane. c) Mosquito in North America that mostly feeds on birds is Cx. Pipiens pipiens and Cx pipiens molestus (feeds on birds and humans). Molestus also occurs in Europe, but in North America, there is a high level of hybridization between
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Lecture 39 - Lecture 39 Avian Flu II 1) Dengue - sustained...

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