ellow fever
Yellow fever is a viral disease spread by an infected female mosquito. It began in Africa and was transported to the New World via the slave trade. Because it was so prevalent in Africa, many Africans had some immunity to it. But so many white men died in what is now Nigeria, it was called ‘white man’s grave.’
In most cases, symptoms include the usual: fever, chills, loss of appetite, muscle pains particularly in the back, and headaches, exactly like other diseases such as the flu. Symptoms typically improve within five days. In about 15% of people, within a day of improving the fever comes back, abdominal pain occurs, and liverdamage causes jaundice. Because of this, yellow fever has been nicknamed Yellow Jack and Bronze John. Death occurs in up to half of those who get severe disease. A vaccine exists for yellow fever and some countries require it before travel.
Although yellow fever is most prevalent in tropical-like climates, major epidemics have occurred in Africa, Europe and the Americas. New York City had an outbreak in 1668 and other cities such as Philadelphia and Baltimore had outbreaks in 1669. All three saw other occurrences in the 18th and 19th centuries. In 1793, Philadelphia, which was then the capital of the country saw an epidemic. Several thousand people died. (The government at that time fled the city.) Dr. Benjamin Rush gained fame during this disaster. A great book to read about this episode in Laurie Halse Anderson’s Fever 1793.
Since the disease traveled along steamboat routes, New Orleans suffered many major epidemics during the 19th centuries, causing 100,000 – 150,000 deaths in total. It was greatly feared and the wealthy abandoned the city to summer homes to escape the disease. The more things change, the more they remain the same. Barbara Hambly’s Benjamin January series refers to Yellow fever throughout.