False-colour TEM of yellow fever viruses

False-colour TEM of yellow fever viruses

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Credit: LONDON SCHOOL OF HYGIENE & TROPICAL MEDICINE/SCIENCE PHOTO LIBRARY.

Caption: False colour transmission electron micrograph (TEM) of yellow fever viruses (black circles) in the cell lining of a yellow fever mosquito, Aedes aegypti. The virus occurs in tropical Africa, regions of South America & the West Indies. It is transmitted to humans during feeding, when the female mosquito (male drinks nectar) inserts her proboscis into the skin & drinks blood. The viruses pass down the proboscis mixed with saliva, which acts as an anticoagulant. They cause degeneration of liver & kidney tissue. Symptoms include headaches, fever, vomiting, & jaundice. The disease is often fatal. Mag: X81,000 at 35mm. original is b/w print m050/026.

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Keywords: causing yellow fever, false-coloured, flavivirus, virus, yellow fever virus

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