True about Borrelia recurrentis are all except: March 2007

Ans. B: It is transmitted by ixodes tick Diseases caused by Borrelia are: 1. Lyme Borreliosis The major Borrelia species causing Lyme disease are Borrelia burgdorferi, Borrelia afzelii, Borrelia garinii and Borrelia valaisiana. Lyme disease/ borreliosis is transmitted by ticks. 2. Relapsing fever Borrelia recurrentis causes epidemic relapsing fever caused by the human body louse. No other known animal reservoir of B. recurrentis exists. B. recurrentis infects the person mucous membranes and then invades the bloodstream.