Colleagues-Rochalimaea henselae, a recently identified pathogen [1, 2], is the causative agent of bacillary angiomatosis [3], bacillary peliosis hepatis [4], and prolonged fever with persistent bacteremia [5], diseases that occur primarily in immunocompromised patients. Because these conditions have been found almost exclusively in patients living in the United States, the existence of R. henselae outside North America has been questioned. A 36-year-old French patient with AIDS, who had never been in North America, was seen in our department for fever, weight loss, abdominal pain, hepatosplenomegaly, pancytopenia, and moderately elevated levels of aminotransferase, -y-glutamyltransferase, and alkaline phosphatase. Transvenous liver biopsy yielded a tissue specimen with multiple peliotic spaces and microabscesses. A liver section stained by the Warthin-Starry technique showed clumps of bacilli, confirming the diagnosis ofbacillary peliosis hepatis. DNA was extracted from a fragment of the liver biopsy specimen and submitted to 30 cycles of polymerase chain reaction amplification, using primers p93E and p13B as described by Reiman et al. [3]. A 480-bp fragment, corresponding to a eubacterial 16S rRNA gene region, was enzymatically amplified and submitted to an additional 30 cycles of amplification with unequal molar amounts of two amplification primers to generate ssDNA for sequence analysis [6]. The sequence obtained was
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