1958
DOI: 10.1093/infdis/102.3.227
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Fetal Leptospirosis and Abortion in Cattle

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Cited by 22 publications
(6 citation statements)
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“…The presence of acute seroconversion of the dams was already reported, especially in abortions by Sejroe [ 10 ]. Nevertheless, since the abortion can occur weeks after the leptospiral infection, the presence of high titers in serology may not always be present [ 11 , 18 , 34 ]. In that context, it is known that serology results are only reliable at the herd level [ 35 ], and in this herd, as expected, was a useful screening test.…”
Section: Discussionmentioning
confidence: 99%
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“…The presence of acute seroconversion of the dams was already reported, especially in abortions by Sejroe [ 10 ]. Nevertheless, since the abortion can occur weeks after the leptospiral infection, the presence of high titers in serology may not always be present [ 11 , 18 , 34 ]. In that context, it is known that serology results are only reliable at the herd level [ 35 ], and in this herd, as expected, was a useful screening test.…”
Section: Discussionmentioning
confidence: 99%
“…The exact mechanism of the pathogenesis of leptospiral abortion is yet unclear, but it is suggested that leptospires pass through the placenta during maternal leptospiremia, causing fetal infection that often results in death [ 4 , 18 , 19 ]. In fetuses with leptospirosis, anatomopathological alterations such as edema, jaundice, the presence of dark-red transudates, as well as focal or generalized hemorrhages have been described [ 18 , 20 ].…”
Section: Introductionmentioning
confidence: 99%
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“…Fennestad andBorg-Petersen (1956, 1958), in their comprehensive studies of bovine leptospirosis and abortion, experienced the same difficulty of isolating the organisms from aborted cattle foetuses. They believed that death of the infected foetus takes place some time before it is expelled, and that the failure to isolate leptospires is due to the inability of the organisms to survive in autolysing tissue.…”
Section: Observationsmentioning
confidence: 99%
“…Varias regiones del genoma de Brucella se han empleado para realizar PCR (Leary et al, 2006); permitiendo identificar al agente infeccioso en tejidos fetales (Cetinkaya et al, 1999, Cortez et al, 2001) y maternos (Fekete et al, 1992, Gallien et al, 1998 1994). El aborto se produce porque en la fase de leptospiremia las bacterias atraviesan la placenta y llegan al feto causando su muerte (Fennestad and Borg-Petersen, 1958). Los abortos por L. hardjo pueden ocurrir en cualquier estadio de la gestación variando desde 3-10% en los rodeos endémicos, mientras que los abortos por L. pomona usualmente ocurren en el último trimestre de la gestación pudiendo alcanzar hasta un 30% (Ellis, 1994;Health and Jonson, 1994).…”
Section: Caracterización Diagnóstica Del Aborto Bovinounclassified