Seroepidemiological study of Q fever in Lorestan province, western Iran, 2014

  • Mohammad Hassan Kayedi Department of Parasitology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
  • Hamid Mokhayeri Department of Communicable Diseases Control and Prevention, Health Center, Lorestan University of Medical Sciences, Khorramabad, Iran
  • Mehdi Birjandi Department of Epidemiology, School of Public Health, Lorestan University of Medical Sciences, Khorramabad, Iran
  • Ali Chegeni-Sharafi Department of Communicable Diseases Control and Prevention, Health Center, Lorestan University of Medical Sciences, Khorramabad, Iran
  • Saber Esmaeili Department of Epidemiology and Biostatistics, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran; National Reference Laboratory for Plague, Tularemia and Q Fever, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Akanlu, Kabudar Ahang, Hamadan, Iran; Department of Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
  • Ehsan Mostafavi Department of Epidemiology and Biostatistics, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran; National Reference Laboratory for Plague, Tularemia and Q Fever, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Akanlu, Kabudar Ahang, Hamadan, Iran
Keywords: Coxiella burnetii, Livestock, Seroprevalence, ELISA, Western Iran

Abstract

Background and Objectives: Q fever is a zoonotic disease and farm animals serve as the main reservoir of the disease. The aim of this study was to evaluate the seroprevalence of Q fever in sheep, in Lorestan province in western Iran.Materials and Methods: In this cross-sectional study, 330 blood samples were collected from sheep, from each county in Lorestan province. The samples were tested by ELISA for the presence of immunoglobulin (IgG) against Coxiella burnetii.Results: Among the samples tested, 45 samples (13.64%) were seropositive. Of 35 studied herds, 21 (60%) had a history of infection. In terms of number of positive samples, there was no significant difference between the three geographical regions (central, west and east) (p=0.687). There was no statistically significant difference between age groups (p =0.604). Gender also had no effect on infection rates, in female and male sheep (p =0.814). No significant difference was observed between the number of lactation and positive serology (p =0.376). The rate of infection with Q fever and abortion also had no statistically significant difference (p =0.152).Conclusion: The findings of this study showed that sheep in Lorestan were infected by Q fever and the cycle of disease transmission had been established between animals and ticks.

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Published
2017-11-15
How to Cite
1.
Kayedi MH, Mokhayeri H, Birjandi M, Chegeni-Sharafi A, Esmaeili S, Mostafavi E. Seroepidemiological study of Q fever in Lorestan province, western Iran, 2014. IJM. 9(4):213-8.
Section
Original Article(s)