Rickettsiae
Visualization of narrower problems
Name(s):
Rickettsial diseases
Rickettsiosis
Nature
Rickettsiae are microorganisms that resemble bacteria but which grow only within susceptible cells, including human cells, - not in cell-free culture media, as bacteria do. The rickettsiae are mainly parasites or symbiotes of arthropods - especially lice, mites, and ticks; from these hosts the rickettsiae may spread to man and domestic animals, causing serious disease.
Incidence
Epidemics of louse-borne typhus are still a threat. Among the other major groups of rickettsioses, murine typhus, scrub typhus, and Rocky Mountain spotted fever commonly occur in endemic areas.
Broader
Narrower
Aggravates
Value(s)
Type
(E) Emanations of other problems