North Asian tick-borne rickettsiosis, an infection, acquired in the Eastern Hemisphere, caused by Rickettsia sibirica, transmitted by ticks. It resembles Rocky Mountain spotted fever. Usual findings include a generalized maculopapular rash involving palms and soles, fever, and lymph node enlargement. It is rarely fatal and responds quickly to treatment with chloramphenicol. No vaccine is available. Compare Rocky Mountain spotted fever. See also boutonneuse fever, relapsing fever.
