Epidemiological modelling of chlamydial abortion in sheep flocks
نویسندگان
چکیده
منابع مشابه
Detection of chlamydial infection in Iranian turkey flocks
Background: Avian chlamydiosis is a zoonotic disease ofbirds caused by the intracellular bacterium Chlamydia psittaci. Avianchlamydiosis leads to severe respiratory disease in young turkeys and eggproduction losses in layers. OBJECTIVES: Due to paucity of information about theprevalence of chlamydial infection in the turkey population in Iran, this studywas conducted to detect chlamydial infect...
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BACKGROUND The epidemiological situation of ovine chlamydial infections in continental Europe, especially Germany is poorly characterised. Using the German state of Thuringia as a model example, the chlamydial sero- and antigen prevalence was estimated in thirty-two randomly selected sheep flocks with an average abortion rate lower than 1%. Seven vaccinated flocks were reviewed separately. RE...
متن کاملComparative investigation of border disease virus infection in sheep flocks with abortion problems in Konya province
The aim of the present study was to determine the serological and virological status of animals persistently infected (PI) with border disease virus (BDV), with focus on the prevalence of pestiviruses in sheep and lambs. This study is the first to our knowledge, to investigate the role of viral infections in abortions in the sheep population of Konya province. The prevalence of antibodies again...
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BACKGROUND Most previous analyses of scrapie outbreaks have focused on flocks run by research institutes, which may not reflect the field situation. Within this study, we attempt to rectify this deficit by describing the epidemiological characteristics of 30 sheep flocks naturally-infected with classical scrapie, and by exploring possible underlying causes of variation in the characteristics be...
متن کاملPassive hemagglutination test for bovine chlamydial abortion.
Purified chlamydial elementary bodies were subjected to sonic lysis to produce soluble antigen for passive hemagglutination (PHA). PHA was more sensitive than complement fixation (CF) in detecting antibody in hyperimmunized rabbits, lambs, and calves. Both CF and PHA tests were used to monitor antibody responses in experimentally infected pregnant cows. All animals responded with rises in titer...
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ژورنال
عنوان ژورنال: Veterinary Microbiology
سال: 2009
ISSN: 0378-1135
DOI: 10.1016/j.vetmic.2008.09.032