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Volume 4, Number 2—June 1998
Perspective

Rickettsial Pathogens and Their Arthropod Vectors

Abdu F. Azad*Comments to Author  and Charles B. Beard†
Author affiliations: *University of Maryland School of Medicine, Baltimore, Maryland, USA; †Centers for Disease Control and Prevention, Atlanta, Georgia, USA

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Figure

Composite diagram of the life cycle of Rocky Mountain spotted fever, rickettsialpox, and murine typhus. A. Life cycle of Rickettsia rickettsii in its tick and mammalian hosts (7); B. Rickettsia akari life cycle; and C. Rickettsia typhi life cycle.

Figure. Composite diagram of the life cycle of Rocky Mountain spotted fever, rickettsialpox, and murine typhus. A. Life cycle of Rickettsia rickettsii in its tick and mammalian hosts (7); B. Rickettsia akari life cycle; and C. Rickettsia typhi life cycle.

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