Yellow fever is a virus that can cause bleeding, jaundice and kidney failure, It is spread by mosquitoes, usually the Aedes aegypti mosquito, the same species that spreads the Zika virus. Yellow fever is a viral infection transmitted by a bite from infected mosquitoes most commonly found in parts of South America and Africa. When transmitted to humans, the yellow fever virus can damage the liver and other internal organs and be potentially fatal.

SPREAD OF YELLOW FEVER

Yellow fever is typically spread to humans from bites by infected mosquitoes. People cannot spread yellow fever among themselves through casual contact, although the infection can be transmitted directly into the blood through contaminated needles.

SYMPTOMS OF YELLOW FEVER

Fever
Bleeding
Loss of appetite
Nausea
Muscle pains particularly in the back, and headaches
Red eye
Jaundice
Fever

A vaccine can prevent infection but there is no specific drug treatment for people who are infected.
http://monicarowolo.com/index.php/2016/04/13/mosquito-that-sp…ses-yellow-fever/ ‎

Hmmm are you serious? Thanks for the information.