Spotted fever [tick-borne rickettsioses] (A77)
Clinical Information
Anaplasma - A genus of gram-negative bacteria whose organisms are obligate parasites of vertebrates. Species are transmitted by arthropod vectors with the host range limited to ruminants. Anaplasma marginale is the most pathogenic species and is the causative agent of severe bovine anaplasmosis.
Anaplasmosis - A disease usually in cattle caused by parasitization of the red blood cells by bacteria of the genus ANAPLASMA.
Boutonneuse Fever - A febrile disease of the Mediterranean area, the Crimea, Africa, and India, caused by infection with RICKETTSIA CONORII.
Ehrlichiosis - A tick-borne disease characterized by FEVER; HEADACHE; myalgias; ANOREXIA; and occasionally RASH. It is caused by several bacterial species and can produce disease in DOGS; CATTLE; SHEEP; GOATS; HORSES; and humans. The primary species causing human disease are EHRLICHIA CHAFFEENSIS; ANAPLASMA PHAGOCYTOPHILUM; and Ehrlichia ewingii.
Rickettsia conorii - A species of gram-negative, aerobic bacteria that is the etiologic agent of BOUTONNEUSE FEVER. It resembles RICKETTSIA RICKETTSII but is antigenically distinct and less virulent for animals and man. (From Bergey's Manual of Systematic Bacteriology, vol 1)
Rickettsia rickettsii - A species of gram-negative, aerobic bacteria that is the etiologic agent of ROCKY MOUNTAIN SPOTTED FEVER. Its cells are slightly smaller and more uniform in size than those of RICKETTSIA PROWAZEKII.
Rocky Mountain Spotted Fever - An acute febrile illness caused by RICKETTSIA RICKETTSII. It is transmitted to humans by bites of infected ticks and occurs only in North and South America. Characteristics include a sudden onset with headache and chills and fever lasting about two to three weeks. A cutaneous rash commonly appears on the extremities and trunk about the fourth day of illness.
Certain infectious and parasitic diseases (A00–B99)
Rickettsioses (A75-A79)
A77 Spotted fever [tick-borne rickettsioses]
- A77.0 Spotted fever due to Rickettsia rickettsii
- A77.1 Spotted fever due to Rickettsia conorii
- A77.2 Spotted fever due to Rickettsia siberica
- A77.3 Spotted fever due to Rickettsia australis
A77.4 Ehrlichiosis
- A77.40 Ehrlichiosis, unspecified
- A77.41 Ehrlichiosis chafeensis [E. chafeensis]
- A77.49 Other ehrlichiosis
- A77.8 Other spotted fevers
- A77.9 Spotted fever, unspecified
Spotted fever [tick-borne rickettsioses] (A77)