File:Enlarged view of an Aedes triseriatus mosquito larva.tiff

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This is an enlarged view of an Aedes triseriatus mosquito larva. The A. triseriatus mosquito is known as one of the many arthropodal vectors responsible for spreading the arboviral encephalitis, West Nile virus (WNV) to human beings through their bite when obtaining a blood meal.

WNV is maintained in nature in a transmission cycle that involves primarily birds and mosquitoes.

The main route of human infection is through the bite of an infected mosquito.

Mosquitoes become infected when they feed on infected birds, which may circulate the virus in their blood for a few days. Infectious mosquitoes carry virus particles in their salivary glands and infect susceptible bird species during blood-meal feeding. Bird reservoirs will sustain an infectious viremia for 1 to 4 days after exposure, after which the hosts that survive develop life-long immunity.
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This media comes from the Centers for Disease Control and Prevention's Public Health Image Library (PHIL), with identification number #12553.

Note: Not all PHIL images are public domain; be sure to check copyright status and credit authors and content providers.

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  • Content Provider(s): CDC/ Harry Weinburgh

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This image is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.

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Date/TimeThumbnailDimensionsUserComment
current21:25, 15 July 2012Thumbnail for version as of 21:25, 15 July 20122,811 × 1,985 (13.6 MB)Alex T. (talk | contribs){{Information |Description= This is an enlarged view of an Aedes triseriatus mosquito larva. The A. triseriatus mosquito is known as one of the many arthropodal vectors responsible for spreading the arboviral encephalitis, West Nile virus (WNV) to huma...

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