West Nile Virus Pictures Slideshow: Causes, Symptoms, and Treatment

Reviewed by John P. Cunha, DO, FACOEP on Monday, September 17, 2012

A digitally colorized transmission electron micrograph (TEM) of the West Nile virus (left) and a close-up view of a Culex mosquito about to begin feeding on a human host (right)

1999 West Nile Virus Activity in the United States (CDC)

This CDC map shows the distribution of avian, animal, or mosquito infection occurring during 1999 with the number of human cases if any, by state.

West Nile virus (WNV) activity reported to ArboNET, by state, United States, 2012 (as of Sept. 18, 2012)

A mosquito attempts to bite a bird.

A mosquito obtains a blood meal from a human host. Note the droplet of blood being expelled from the abdomen after having engorged itself on its host’s blood.

A person points out a mosquito bite on their arm.

A patient receives a blood transfusion in the hospital (top left). A mother breastfeeds her baby (bottom left). A pregnant woman runs along a wilderness trail (right).

A pregnant woman walks near the river at dusk.

A person feeds some birds.

A picture of baked quail and eggs

A family goes on a nature walk through the park.

Photos of the four seasons -- spring, summer, fall, and winter

A man checks his temperature.

A woman sick in bed with a headache and fever

A doctor talks with his patient.

An MRI of the human brain.

A nurse performs a blood test by drawing blood from a patient's arm.

Two mosquitos on human skin about to feed

A natural rock pool of stagnant green water is full of mosquito larva with a close-up of a Culex mosquito rests on the surface of stagnant water, immediately after laying a raft of eggs.

A family wears long pants and long sleeves during a walk through the woods (left). A mother sprays mosquito repellent on her daughter (top right). A man repairs the mesh of a window screen (bottom right).

A person finds a dead bird on the lawn (left). This birdbath contains stagnant water (center). A man sprays insecticide for mosquitoes (right).

A man sprays mosquitoes found breeding in a street-side drainage ditch (left). A worker holds a plant jar containing mosquito larvae (right).

Mosquitoes swarm on human skin.

A list of West Nile virus (WNV) facts

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