Rickettsia

external

• Synonyms

  • Spotted fever

• Effects

  • Maculopapular rash
  • Photophobia
  • Rickettsiosis
  • Epidemic haemorrhagic fever
  • Generalised lymphadenopathy
  • Hepatomegaly
  • Splenic response to infection
  • Invisibility on gram stain
  • Fever of unknown origin

• Parents

  • Obligate intracellular prokaryote

• Children

  • Rocky Mountain spotted fever
  • Fievre boutonneuse
  • Typhus

• Treatments

  • Doxycycline
  • Chloramphenicol

• Description

  • "Gram-negative bacteria. Obligate intracellular parasites. Hence needs to be cultured in chick embryo. Unlike Chlamydia
  • Mycoplasma
  • and Ureaplasma
  • they possess true cell walls similar to other Gram-negative bacteria. Sensitive to tetracyclines. "