Heartwater: an abridged historical account.
نویسنده
چکیده
Heartwater was first recognised and recorded in South Africa as early as 1838. Since then the disease has been described from almost all the countries in Africa south of the Sahara, from certain islands around Africa and from a number of islands in the Caribbean. Most of the research on the disease, at least until fairly recently, was conducted in South Africa. Progress in research on the disease has been slow but a few important findings are highlighted in this paper.
منابع مشابه
The epizootiology and control of heartwater and other tick-borne diseases of cattle in South Africa.
The history of the main bovine tick-borne diseases occurring in South Africa and the role Onderstepoort played in their identification and control is briefly reviewed. The present attitudes regarding the control of tick-borne diseases, taking into account their complexity, is discussed. Gaps in our knowledge regarding heartwater epizootiology and possible future studies are defined.
متن کاملHeartwater in hosts other than domestic ruminants.
The importance of further research on the susceptibility of wild hosts to Cowdria ruminantium infection is discussed. The literature is surveyed and an attempt is made to divide the various species described into susceptible and refractory hosts. The reasons for the numerous apparently conflicting reports are considered and it is suggested that those making further inquiries in this field of wo...
متن کاملA survey of the incidence and importance of the tick-borne diseases heartwater, redwater and anaplasmosis in the heartwater-endemic regions of South Africa.
In an almost 50% response to a survey questionnaire, farmers in the heartwater-endemic regions of South Africa indicated that they were experiencing losses of 1.3, 0.3 and 0.2% in cattle due to heartwater, redwater and anaplasmosis, respectively. In small stock, the heartwater mortality was 3.8%. Only 35% of cattle farmers and 15% of farmers keeping sheep and goats, vaccinate their animals agai...
متن کاملAn afebrile heartwater-like syndrome in goats.
Heartwater is a serious limiting factor for sheep and goat production in the major endemic area of sub-Saharan Africa and therefore most knowledge, research and control methods originate from this region. Whilst the usual or common clinical presentations can be used to make a presumptive diagnosis of heartwater with a good measure of confidence, this is not always the case, and animals sufferin...
متن کاملProblems encountered in the control of heartwater in Angora goats.
This preliminary investigation confirmed that when Angora goats were immunized against heartwater, either when kids or young goats, they still had an immunity to heartwater a year later when they were challenged with a vaccine containing Cowdria ruminantium. An overwhelming majority of the uninoculated animals which were challenged at the same time were susceptible to clinical heartwater. Strat...
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ورودعنوان ژورنال:
- Journal of the South African Veterinary Association
دوره 80 4 شماره
صفحات -
تاریخ انتشار 2009