期刊
COMPARATIVE IMMUNOLOGY MICROBIOLOGY AND INFECTIOUS DISEASES
卷 67, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.cimid.2019.101368
关键词
Coxiella burnetii; Nested-PCR; Cattle milk; Buffalo milk; West Azerbaijan
资金
- Urmia University
The present study was conducted to determine the prevalence of C. burnetii in raw milk samples collected from water buffalos and cattle in Northwest of Iran (West Azerbaijan Province). A total number of 840 milk samples were randomly collected from buffalos and cattle belonged to three different geographical regions in west Azerbaijan (the map is necessary). The milk samples were collected seasonally during 2018 and the age of animals were recorded. All the milk samples were subjected to DNA extraction. Nested-PCR was used to detect C. burnetii based on the transposable gene IS1111. The results showed that 16.9% (95% CI: 14.5%-19.6%) of the examined milk samples (19.3% buffalo and 14.6% cattle samples) were positive for C. burnetii. There was a significant difference in C. burnetii shedding in milk between different age groups in cattle but not in buffalos (p value < 0.05). The shedding of C. burnetii in milk was highly prevalent in summer (31.1%) (p < 0.05, 95% CI: 26.1%-38.4%). There were significant regional and seasonal variations in the prevalence of C. burnetii in the examined milk samples. It was concluded that buffalo population in west Azerbaijan should be considered as an important factor in the epidemiology of Q fever and consequently in public health.
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