Alexander Anderson Papers / New-York Historical Society Library In the 18th and early 19th centuries, many European and American medical authorities suspected yellow fever spread through ...

A deadly outbreak of a disease which first emerged in the 17th century has led a South American ... recently upgraded the yellow fever risk for South America to 'level two' out of four.

Although 19th-century postal workers were in no danger of contracting yellow fever from perforating or fumigating the mail, that fact, known to us only in hindsight, does not detract from the ...