Harrison's Manual of Medicine
Chapter 99: Rickettsial Diseases
Microbiology
Rickettsiae are obligate intracellular gram-negative coccobacilli and short bacilli usually transmitted by tick, mite, flea, or louse vectors. Except in the case of louse-borne typhus, humans are incidental hosts.
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Citation
Kasper, Dennis L., et al., editors. "Chapter 99: Rickettsial Diseases." Harrison's Manual of Medicine, 20th ed., McGraw Hill Inc., 2020. harrisons.unboundmedicine.com/harrisons/view/Harrisons-Manual-of-Medicine/623008/all/Chapter_99:_Rickettsial_Diseases.
Chapter 99: Rickettsial Diseases. In: Kasper DLD, Fauci ASA, Hauser SLS, et al, eds. Harrison's Manual of Medicine. McGraw Hill Inc.; 2020. https://harrisons.unboundmedicine.com/harrisons/view/Harrisons-Manual-of-Medicine/623008/all/Chapter_99:_Rickettsial_Diseases. Accessed July 30, 2025.
Chapter 99: Rickettsial Diseases. (2020). In Kasper, D. L., Fauci, A. S., Hauser, S. L., Longo, D. L., Jameson, J. L., & Loscalzo, J. (Eds.), Harrison's Manual of Medicine (20th ed.). McGraw Hill Inc.. https://harrisons.unboundmedicine.com/harrisons/view/Harrisons-Manual-of-Medicine/623008/all/Chapter_99:_Rickettsial_Diseases
Chapter 99: Rickettsial Diseases [Internet]. In: Kasper DLD, Fauci ASA, Hauser SLS, Longo DLD, Jameson JLJ, Loscalzo JJ, editors. Harrison's Manual of Medicine. McGraw Hill Inc.; 2020. [cited 2025 July 30]. Available from: https://harrisons.unboundmedicine.com/harrisons/view/Harrisons-Manual-of-Medicine/623008/all/Chapter_99:_Rickettsial_Diseases.
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