Introduction of the West Nile Virus to North America

The introduction of West Nile virus into the West Nile (WN) virus in North America was first isolated from the peripheral blood of a woman in West Nile State, Uganda in 1937. Since that time, WN viruses have been reported in North Africa (Egypt, Israel), East Africa, Central Africa, South Africa, Asia (India, Pakistan), Borneo, Europe (Cyprus, France, Romania), and more recently in the northeastern United States of America I will. . The WN antibody test shows that it also exists in Thailand, the Philippines, Malaysia, Turkey and Albania.

This study, published this week, shows that the introduction of West Nile virus in North America between 1999 and 2003 has resulted in a 50% reduction in the survival rate of symbolic species of red eye virus. , Cardinal North and American Gold Finch. We asked Harrigan, a part-time assistant professor at the IoES Tropical Research Center, that he and his colleagues had reached this conclusion without testing avian influenza virus. Is the meaning of the population smaller than the species seen in the study?

West Nile encephalitis is a brain infection caused by a virus called West Nile virus. This virus was first discovered in Uganda in 1937 and is common in Africa, West Asia and the Middle East. Except for Alaska, all US states reported West Nile virus infection. "Encephalitis" refers to brain inflammation. The most common cause of encephalitis are viral infections and bacterial infections, including viral infections that are transmitted by mosquitoes. West Nile virus infection is also known as West Nile fever or West Nile encephalitis. This virus is an arbovirus (ARrthropod-BOrne's arbo because many insects are arthropods). It is a member of Flavivirus and Flaviviridae. Other flaviviruses that affect humans include yellow fever, dicavirus, dengue. Human and veterinary cases of West Nile Virus are reported electronically to ArboNET by state and local health authorities