system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Bacillary angiomatosis is caused by:
assistant
The correct answer is  Ans. A. B. henselaeBacillary angiomatosis, a treatable opportunistic infection, was initially reported as atypical subcutaneous infection in patients with advanced HIV disease and as epithelioid angiomatosis. The agents causing this infection, initially designated as Rochalimaea, have been reclassified as Bartonella. The term bacillary angiomatosis is being replaced by Bartonella infection because the infectious agents causing this condition have been identified as two species of Bartonella - B. henselae and B. Quintana. Bartonella henselae is most often transmitted through a cat scratch or bite, though ticks and fleas may also act as a vector. Bartonella quintana is usually transmitted by lice.It can manifest in people with AIDS and rarely appears in those who are immunocompetent