UNIVERSAL HISTORY ARCHIVE / UIG / SCIENCE PHOTO LIBRARY UNIVERSAL HISTORY ARCHIVE / UIG / SCIENCE PHOTO LIBRARY
Epidemic Typhus or Gaol Fever, caused by the organism Rickettsia prowazeki, is spread by lice. Here a peasant woman in the Spanish Pyrenees is removing lice, the vector for the disease, from her child's head as the family takes a rest on their journey. Tinted lithograph from Nouvelles Suite de Costumes des Pyrenees (Paris, c1840).
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