جستجوی مقالات مرتبط با کلیدواژه "بارتونلا" در نشریات گروه "پزشکی"

  Fleas are clinically important parasites for affecting human health. These insects are carriers of some pathogens such as Yersinia pestis, Rickettsia typhi, Q fever, Tularemia and Bartonella henselae which are infectious for humans and animals. The aim of this cross –sectional study was to detection of Rickettsia, Bartonella and Wolbachia pathogens in infected Ctenocephalides canis and Pulex irritans using molecular method in West and Northwest of Iran.

The present study is a, descriptive, cross-sectional study (prevalence rate=10%, confidence level=95%,  error rate=5%) which  performed on samples collected from five provinces including  Kermanshah, Kurdistan, Azerbaijan Western, Lorestan and Hamedan for 13 months from May 2018 to June 2019. In this study, samples were collected by optical trap, human prey and direct isolation of the sample from the host and identified in the parasitology laboratory using valid diagnostic keys. The prevalence of Rickettsia, Bartonella and Wolbachia in the collected samples was detected using polymerase chain reaction (PCR). Amplification and sequencing of gltA, pap31 and 16SrRNA genes were used for molecular diagnosis of  Rickettsia, Bartonella, and Wolbachia respectively.

The collected samples included 918(47.39%) fleas of C.canis and 1019 (52.60%) fleas of P.irritant. The PCR products of each gene was subject to sequencing. In this study, 12.9% , 5.21% and 5.21% of fleas were positive for  Wolbachia , Rickettsia and Bartonella, respectively .

Bartonella, Rickettsia and Welbachia are vector borne infectious agent. Due to their high pathogenicity and easily transmission among insect and human, monitoring of insects is essential for the controlling of the infection and preserving the public health in endemic area.

Human flea (Pulex irritans) is one of the most important human ectoparasites that transmits various pathogens and causes skin irritation by biting humans and animals. Planning control measures against this vector in various regions requires the knowledge of the pathogens within the vector. Thus, this study was carried out to identify Bartonella and Rickettsia infection of P. irritans in Zanjan province. Flea samples were collected via human baits from animal farms in Khodabande and Mahneshan districts from September 2013 to October 2014. DNA was extracted from human fleas, and a part of gltA gene for identification of Rickettsia, and ITS region for identification of Bartonella were amplified by specific primers. A number of PCR products were sequenced after purification. Out of 1136 collected flea samples 1079 (94.98%) were P. irritas, 36 (3.16%) C. canis and 21 (1.84%) were C. felis. 4.9 % of human flea samples had Reckettsia infection, while no Bartonella infection was observed. High frequency and rickettsial infection of P. irritans in the studied areas need more attention of administrators and taking into account control measures against this vector. Although Bartonella infection was not observed in our samples, more comprehensive studies are required to verify this viewpoint.