title: Typhus vaccine
text: # Typhus vaccine
  
  Typhus vaccines are vaccines developed to protect against typhus. As of 2020 they are not commercially available.
  
  One typhus vaccine consisted of formaldehyde-inactivated Rickettsia prowazekii. Two doses were injected subcutaneously four weeks apart. Booster doses were required every six to twelve months.
  
  