Prison fever It is also known as "jail fever".
What is an alternative name for a hydrolaccolith, a mound of earth-covered ice found in the Arctic and subarctic that can reach up to 70 metres (230 ft) in height and up to 600 m (2,000 ft) in diameter?
Murine typhus, Rocky mountain spotted fever and Boutonneuse fever are illnesses in a family known collectively as what kind of disease?