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  • Title: [Seroprevalence of Bartonella henselae and Bartonella quintana in blood donors in Aydin province, Turkey].
    Author: Aydin N, Bülbül R, Tellı M, Gültekın B.
    Journal: Mikrobiyol Bul; 2014 Jul; 48(3):477-83. PubMed ID: 25052114.
    Abstract:
    Bartonella species cause several diseases in humans such as cat stratch disease, bacillary angiomatosis, peliosis hepatis, endocarditis, Carrion disease and trench fever. Cat scratch disease and bacillary angiomatosis cases have already been reported in Turkey. Studies from our region, namely Aydin (a province located at Western Anatolia, Turkey) indicated that mean Bartonella henselae IgG seropositivity rate is 11.5% in risk groups and may reach to 26.5% in pet owners. The aim of this study was to determine the seroprevalence of B.henselae and B.quintana in healthy blood donors in our university hospital in Aydin, for estimating the transmission risk via transfusion. The study was designed as a cross-sectional epidemiological study. A total of 333 samples taken from blood donors (49 female, 284 male) who were sequentially admitted to the blood center of the university hospital, in January 2011 were included in the study. All sera were screened in terms of B.henselae and Bartonella quintana IgG antibodies by using two different indirect immunofluorescent antibody (IFA) commercial kits (Vircell, Spain; Focus, USA). Slides were examined at a final magnification of x400 on fluorescent microscope by two different assigned researchers. Fluorescent intensity was graded between 1+ to 4+, and the samples with fluorescence value of ≥ 2+ were considered as positive. The seropositivity rate of IgG antibodies to B.henselae was found as 3.3% (11/333) in blood donors. This rate was 4.1% in female, and 3.2% in male donors, showing no statistically significant difference between the genders (p= 0.668). B.henselae antibody titers were detected as 1/64 in 6 (1.8%), 1/128 in 4 (1.2%) and 1/1024 in 1 (0.3%) patient. All of the B.henselae IgG positive samples also yielded relatively low positivity for B.quintana IgG, possibly indicating cross reactivity. The fluorescence intensity for different kits used was found to be the same in all but one titer. The results reported by two researchers were found to differ only in the samples graded 1+ or below. However, the evaluation differences between the kits and the researchers did not affect the results. It was concluded that B.henselae infection might be found in the blood donors in our region, thus, a detailed questionnaire prior to blood donation might be helpful to prevent transmission of B.henselae by blood transfusion.
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