Prevalence of Coxiella burnetii infection and risk factors in aborted sheep and goats in Kerman province, southeast of Iran
2023
Mohadese Soltaninejad | Mehdi Golchin | Mohammad Khalily | Elham Mohammadi | Mohammad Shamshirgaran
Coxiellosis, also known as Q fever, is a zoonotic disease caused by Coxiella burnetti and has become a significant cause of small ruminant abortion globally. Q fever is endemic in Iran, but there is a dearth of epidemiological data regarding the true prevalence of C. burnetii in some areas of Iran. Small ruminants, mainly goats and sheep, are considered the primary reservoir for human infection, posing a considerable threat to human health. Theses reservoirs can shed the bacterium into vaginal mucus.The objective of this study is to examine the prevalence of coxiellosis through the detection of the IS1111 gene of C. burnetii using Real-time PCR and also to identify the related risk factors (such as the location of livestock, age, species, and parity) associated with the disease in the vaginal discharge of small ruminants residing in Kerman province, located in the southeast of Iran. During the winter of 2019 and autumn of 2020, a total of 134 vaginal samples from aborted small ruminants (70 samples from sheep and 64 from goats) were gathered from 32 herds located in different areas of Kerman province. The results showed that 26 samples, comprising 14 from goats (21.88 %) and 12 from sheep (17.14 %), were positive for coxiellosis. According to the findings of our study, the detection of C. burnetii showed that coxiellosis is circulating in the studied area. Additionally, our analysis revealed no statistically significant association between the prevalence of Q fever and small ruminants'' location, number of parturition, and age that were examined as potential risk factors.
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