smallest insect

The symptoms of yellow fever appear 12 days after the person is bitten by the disease-carrying mosquito. These include sudden exhaustion caused by high fever, severe headache, and crippling muscle pains.
This is followed by yellowing of the skin, dark urine, and bleeding from the mucous membranes. The patient may also vomit blood.
Up to now there is no cure for yellow fever. Treatment is aimed at making the patient as comfortable as possible. In a few cases, however, the disease can be fatal.
"Yellow fever is and of itself almost never fatal. In about five percent of all cases, death is caused by failure of the liver, kidneys or heart," said Dr. Morris Fishbein, the late editor of the Journal of the American Medical Association in his “Popular Illustrated Medical Encyclopedia.”