2019
DOI: 10.1177/1040638719856394
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Abstract: A cluster of 4 bovine abortions caused by Coxiella burnetii occurred in a dairy herd in Uruguay during a 2-mo period. Case 1 consisted of a placenta from an aborted cow; cases 2–4 were fetuses and their placentas. Grossly, the placenta from one aborted cow had moderate, diffuse reddening of the cotyledons and loss of translucency of the intercotyledonary areas. No gross lesions were observed in the other 3 placentas. Microscopically, 2 of 4 placentas had fibrinonecrotizing placentitis with abundant intratropho… Show more

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Cited by 15 publications
(12 citation statements)
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“…Coxiella burnetii is rarely reported as a cause of abortion in cattle (Agerholm 2014). In our study, this agent was observed as a sporadic cause of abortion (only one case in one dairy farm) and as a cluster of five cases within a period of five months in another farm (Macías-Rioseco et al 2019c). We were able to identify abortions due to coxiellosis based on the microscopic Fig.…”
Section: Discussionmentioning
confidence: 43%
See 1 more Smart Citation
“…Coxiella burnetii is rarely reported as a cause of abortion in cattle (Agerholm 2014). In our study, this agent was observed as a sporadic cause of abortion (only one case in one dairy farm) and as a cluster of five cases within a period of five months in another farm (Macías-Rioseco et al 2019c). We were able to identify abortions due to coxiellosis based on the microscopic Fig.…”
Section: Discussionmentioning
confidence: 43%
“…The IHC procedures for Chlamydia spp. and C. burnetii and the PCR in FFPE placenta in these same cases has recently been published by our group (Macías-Rioseco et al 2019c).…”
Section: Methodsmentioning
confidence: 68%
“…An infection in ruminants, also termed coxiellosis, is often asymptomatic and not noticed until human Q fever cases occur ( 12 ). Decrease in fertility and increase of abortion and stillbirth are common indications of an ongoing Q fever disease in herds or flocks of ruminants ( 13 , 14 ).…”
Section: Introductionmentioning
confidence: 99%
“…Fetal and perinatal mortality may be caused by more than one infectious or non-infectious agent in the same case (co-mortality or polypathia) (Macías-Rioseco et al, 2019;Henker et al, 2020;Mee, 2020). In 8 % of the diagnosed cases, co-infections (more than one infectious agent in the same case) were present.…”
Section: Discussionmentioning
confidence: 99%