Nature World News: By combining epidemiological data with climate data, researchers at the University of Arkansas were able to provide evidence that drought contributed to the spread of epidemic typhus in Mexico from 1655 to 1918.
Typhus, not to be confused with typhoid fever, can cause delirium, severe muscle pain, joint pain, rash, fever and headache. The mortality rate is estimated between 10 percent and 60 percent for the typhus strain studied, according to the US National Library of Medicine. The study, published...