The epidemiological survey of Coxiella burnetii in small ruminants and their ticks in western Iran
2022
Rahravani, Maryam | Moravedji, Meysam | Mostafavi, Ehsan | Mohammadi, Mehrdad | Seyfi, Hamid | Baseri, Neda | Mozoun, Mohammad Mahdi | Latifian, Mina | Esmaeili, Saber
BACKGROUND: Q fever is one of the most important zoonotic diseases caused by Coxiella burnetii. Although Q fever is an endemic disease in Iran, epidemiological data on C. burnetii infection are not yet complete in reservoirs and vectors in some parts of Iran. This survey investigated C. burnetii infection in small ruminants (sheep and goat blood samples) and their ticks in western Iran (Kurdistan province) in 2020. The presence of C. burnetii DNA was identified in these samples by targeting the IS1111 gene using the quantitative PCR (qPCR) method. RESULTS: Out of 250 blood samples (232 sheep and 18 goats), C. burnetii was detected in two samples (0.8%) belonging to the sheep (0.9%). In addition, 34 of 244 collected ticks (13.9%) from infested animals (244) were positive for C. burnetii infection. The highest prevalence of infection was found in Dermacentor marginatus (18.3%) and Haemaphysalis concinna (12.5%). CONCLUSIONS: The present study showed that ticks could have a possible role in the epidemiology of Q fever in Iran.
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