Bartonella henselae causes severe disease in immunocompromised individuals. B. henselae was isolated from 12 human immunodeficiency virus (HIV)-infected individuals with bacillary angiomatosis and/or peliosis hepatis and from their 15 cat contacts. Specific associations between the 2 B. henselae genotypes, individual pulsed-field gel electrophoresis (PFGE) patterns, and different clinical syndr...

3. Castle KT, Kosoy M, Lerdthusnee K, Phelan L, Bai Y, Gage KL, et al. Prevalence and diversity of Bartonella in rodents of northern Thailand: a comparison with Bartonella in rodents from southern China. Am J Trop Med Hyg. 2004;70: 429–33. 4. Suksawat J, Xuejie Y, Hancock SI, Hegarty BC, Nilkumhang P, Breitschwerdt EB. Serologic and molecular evidence of coinfection with multiple vector-borne p...

The seroreactivities of both naturally and experimentally infected cats to Bartonella henselae was examined. Serum samples collected weekly from nine cats experimentally infected with B. henselae LSU16 were tested by enzyme-linked immunosorbent assay (ELISA) and Western blot analysis. The magnitude and isotype of the antibody response were investigated by ELISA. Western blot analysis allowed th...

The gram-negative bacterium Bartonella henselae is capable of causing angiogenic lesions as a result of infection. Previously, it has been shown that B. henselae infection can result in production of the chemokine interleukin-8 (IL-8). In this study, we demonstrated that monocytes, endothelial cells, and hepatocytes produce IL-8 in response to B. henselae infection. We also investigated the rol...

Bartonella henselae is a gram-negative zoonotic bacterium that causes infections in humans including endocarditis and bacillary angiomatosis. B. henselae has been shown to grow as large aggregates and form biofilms in vitro. The aggregative growth and the angiogenic host response requires the trimeric autotransporter adhesin BadA. We examined the transcriptome of the Houston-1 strain of B. hens...

BACKGROUND An association between Henoch-Schonlein purpura (HSP) and seropositivity for Bartonella henselae (BH) has been described. The objective of this study was to see if such an association exists in northern Alberta. METHODS Immunofluorescent antibody testing utilizing an antigen prepared from B. henselae was undertaken on sera from six children with current HSP, 22 children with remote...

Bartonella species are gram-negative bacilli that belong to the alpha two subgroup of Proteobacteria. Bartonella species are being recognised as increasingly important bacterial pathogens in veterinary and human medicine [1]. These organisms can be transmitted by an arthropod vector or alternatively by animal scratches or bites [1]. Cat scratch disease (CSD) is caused by Bartonella henselae and...

Among culture-negative endocarditis in the United States, Bartonella species are the most common cause, with Bartonella henselae and Bartonella quintana comprising the majority of cases. Kidney manifestations, particularly glomerulonephritis, are common sequelae of infectious endocarditis, with nearly half of allBartonella patients demonstrating renal involvement. Although a pauci-immune patter...

In Taiwan, the first human case of cat-scratch disease (CSD) was diagnosed by a serologic test in 1998. Since then, no studies have been conducted to understand the epidemiology of the infection in Taiwan. Therefore, this study is the first epidemiologic survey of CSD in cats and humans in this country. Using veterinary-associated individuals as the study population, it was identified that 1.7%...

The study of 16S rRNA gene sequences of all isolates of Bartonella henselae obtained in our laboratory and others from human patients or cats has revealed two genotypes according to the sequence of the 16S rRNA gene. Two isolates of these genotypes have previously been related to two different serotypes, and lack of cross-protection of the two serotypes has been demonstrated in cats. We investi...