Flavivirus, Yellow Fever Virus, TEM


Color enhanced Transmission Electron Micrograph (TEM) of yellow fever virus virions. Yellow fever is caused by the yellow fever virus of the family Flaviviridae. It was the first illness shown to be transmissible by filtered human serum and transmitted by mosquitoes, by Walter Reed around 1900. The positive-sense, single-stranded RNA is around 11,000 nucleotides long and has a single open reading frame encoding a polyprotein. Yellow fever is a viral disease of typically short duration. In most cases, symptoms include fever, chills, loss of appetite, nausea, muscle pains particularly in the back, and headaches. Symptoms typically improve within five days. In about 15% of people within a day of improving, the fever comes back, abdominal pain occurs, and liver damage begins causing yellow skin. If this occurs, the risk of bleeding and kidney problems is also increased. The disease is caused by the yellow fever virus and is spread by the bite of an infected female mosquito. It infects only humans, other primates, and several species of mosquitoes. In cities, it is spread primarily by Aedes aegypti, a type of mosquito found throughout the tropics and subtropics. Magnification: unknown.

Credit: Science Source

Model Release: No, but may not be necessary

File Size: up to 20.4" by 13.6" (at 300dpi)

COLOR ENHANCEMENTS: BA2166, BH4917, BH4918, BH4939, BH4940

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