Soon Anjou fell seriously ill with "tertian ague", malaria. Guthlac suffered from ague and marsh fever. Swamp fever, ague, and malaria plagued the early settlers at Muskego. Nearly all of the settlers experienced fever and ague, and several perished from it. Many residents suffered from the ague, a disease later determined to be malaria. Greatrakes cured him in a few minutes of an acute ague. Greatrakes cured Phayre in a few minutes of an acute ague. His home cures included hanging three spiders around his neck which "drove my Ague away". Ague is an illness involving fever and shivering. Ague, of course, is one of the most prevalent diseases of the district; fever abounds. However, as his brother Charles noted, "the ague was too much for him there".