Yellow fever appeared in the U.S. in the late 17th century. The deadly virus continued to strike cities, mostly eastern seaports and Gulf Coast cities, for the next two hundred years, killing ...

In the 20th century, a vaccine for yellow fever was developed to protect people in regions where the disease still flourishes. Epidemics continued, however, during every decade of the century, and ...

Yellow fever is caused by a virus that is transmitted to humans through the bite of infected mosquitoes. The virus is a flavivirus, which is the same group of viruses that cause dengue ...