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Coxiella burnetii (Q fever) infection in dairy cattle and associated risk factors in Latvia
被引:0
|作者:
Boroduske, A.
[1
]
Trofimova, J.
[1
]
Kibilds, J.
[1
]
Papule, U.
[1
]
Sergejeva, M.
[1
]
Rodze, I.
[1
]
Grantina-Ievina, L.
[1
]
机构:
[1] Inst Food Safety Anim Hlth & Environm BIOR, Anim Dis Diagnost Lab, Lejupes St 3, LV-1076 Riga, Latvia
关键词:
ELISA;
Q fever;
risk assessment;
serology;
zoonoses;
SEROPREVALENCE;
NETHERLANDS;
PREVALENCE;
OUTBREAK;
FARMS;
D O I:
10.1017/S0950268817000838
中图分类号:
R1 [预防医学、卫生学];
学科分类号:
1004 ;
120402 ;
摘要:
The purpose of this study was to describe prevalence and spatial distribution of Coxiella burnetii infections in dairy cow sheds in Latvia and to investigate risk factors contributing to C. burnetii infections. Blood serum samples from abortion cases from 1010 sheds have been tested by ELISA for the presence of C. burnetii antibodies and bulk tank milk (BTM) samples from 252 sheds have been tested by real time polymerase chain reaction and ELISA for the presence of C. burnetii DNA and antibodies. Prevalence of C. burnetii antibody-positive sheds in cases of abortion was 13.4%. A total of 10.7% and 13.2% of dairy cow sheds tested positive for the presence of C. burnetii DNA and antibodies in BTM, respectively. Two distinct areas of clustering of test-positive dairy cattle sheds were identified by spatial scan statistics of abortion cases and randomly sampled BTM samples. Three factors were identified as significantly contributing to the risk of C. burnetii DNA presence in BTM - number of cattle in shed (>200 animals/shed) (OR 3.93), location of the shed within risk area in Northern Latvia (OR 8.29) and for the first time, purchasing cattle from abroad has been shown to significantly increase risk (OR 2.68) of C. burnetii infection in dairy cows in Latvia.
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页码:2011 / 2019
页数:9
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