Enzootic Abortion of Ewes
ثبت نشده
چکیده
Ovine chlamydiosis, also known as enzootic abortion of ewes (EAE) or ovine enzootic abortion (OEA), is caused by the bacterium Chlamydophila abortus. Chlamydial abortion typically occurs in the last 2–3 weeks of pregnancy with the appearance of stillborn lambs and inflamed placentas. However, infection can also result in the delivery of full-term stillborn lambs or weak lambs that do not survive longer than 48 hours. Infected ewes can also give birth to healthy lambs and it is not uncommon to observe delivery of a dead and a weak or healthy lamb. There are rarely any predictive signs that abortion is going to occur, although behavioural changes and a vulval discharge can be observed in the last 48 hours of pregnancy.
منابع مشابه
Isolation of Chlamydia spp. from Ewes and Does in Iran
Enzootic ovine abortion is caused by Chlamydia abortus and may result in abortion among small ruminants during the last 2-3 weeks of pregnancy. Enzootic abortion is diagnosed by isolation of the agent or detection of its nucleic acid in the products of abortion or vaginal excretions of freshly aborted females. Isolation of chlamydial agents in cell culture is the gold standard, so in the presen...
متن کاملComplement-fixation test for lymphogranuloma venereum in non-specific urethritis.
A report by Bedson (1950) had not shown such an association, nor was any such relationship noted between non-specific urethritis and the results of the complement-fixation test for enzootic abortion in ewes by Willcox and Stamp (1953). In the latter investigation some 323 complementfixation tests for enzootic abortion in ewes were performed on sera from 123 patients with present or past non-spe...
متن کاملEffect of Preventive Chlamydia abortus Vaccination in Offspring Development in Sheep Challenged Experimentally
Ovine enzootic abortion, caused by Chlamydia abortus, leads to important economic losses worldwide. In addition to reproductive failures, infection may impact lamb growth during the first weeks after birth, yet this effect has not been well characterized. Vaccination can help to control the disease but variable efficacy values have been described, possibly related with factors associated with t...
متن کاملPregnancy complicated by psittacosis acquired from sheep.
Two cases of chlamydial infection in pregnant women are described, the first serologically proved and the second suspected. In both cases the infection was probably contracted from sheep suffering with enzootic abortion. Both patients were farmers' wives who had helped their husbands and lambing and developed a non-specific febrile illness in late pregnancy. In the first case as there was no cl...
متن کاملAntibody responses to recombinant protein fragments of the major outer membrane protein and polymorphic outer membrane protein POMP90 in Chlamydophila abortus-infected pregnant sheep.
Chlamydophila abortus is one of the major causes of infectious abortion in pregnant sheep (enzootic abortion of ewes or EAE) worldwide. Organisms shed in infected placentas and uterine discharges at lambing time are the main sources of environmental contamination, responsible for transmission to susceptible animals and possible human contacts. In the present study, a recently developed test, ba...
متن کامل