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The ultimate factor that causes death is pulmonary edema. In May 2010, a vaccine to protect cattle against East Coast fever reportedly had been approved and registered by the governments of Kenya, Malawi and Tanzania. [12] This consists of cryopreserved sporozoites from crushed ticks, but it is expensive and can cause disease. [citation needed]
In an 1877 testimony to the Cape of Good Hope Commission on Diseases of Sheep and Goats livestock producer J. Webb testified that the appearance of ticks on his farm 8 or 9 years earlier corresponded with an onset of fatal disease in his livestock. Webb reported opening the chest of the victims and discovering the "heart bag" to be full of "water."
The disease is caused by trypanosomes of several species in the genus Trypanosoma such as T. brucei - which also infects humans to cause African Sleeping Sickness, and T. vivax which causes nagana in livestock mainly in West Africa, although it has also spread to South America. [1]
Eye Ring. Bovine malignant catarrhal fever (BMCF) is a fatal lymphoproliferative disease [1] caused by a group of ruminant gamma herpes viruses including Alcelaphine gammaherpesvirus 1 (AlHV-1) [2] and Ovine gammaherpesvirus 2 (OvHV-2) [1] [3] These viruses cause unapparent infection in their reservoir hosts (sheep with OvHV-2 and wildebeest with AlHV-1), but are usually fatal in cattle and ...
Many species of flies of the two-winged type, Order Diptera, such as mosquitoes, horse-flies, blow-flies and warble-flies, cause direct parasitic disease to domestic animals, and transmit organisms that cause diseases. These infestations and infections cause distress to companion animals, and in livestock industry the financial costs of these ...
Pregnant livestock infected with RVF abort virtually 100% of foetuses. An epizootic (animal disease epidemic) of RVF is usually first indicated by a wave of unexplained abortions. [citation needed] Other signs in livestock include vomiting and diarrhea, respiratory disease, fever, lethargy, anorexia, and sudden death in young animals. [3]
Crimean-Congo hemorrhagic fever virus is transmitted between many mammal species by Hyalomma truncatum, Hyalomma rufipes, and Hyalomma turanicum over a wide area of Africa, Europe, and Asia. In cattle and sheep, it causes mild fever and its main importance is when it spreads to humans by feeding of the larvae or nymphs of these ticks. [17]
Despite the massive amount of cattle death among the Maasai, the epizootic was only shown concern by the Germans when the livestock around ports and military stations began to die. [14] The German response to rinderpest often included border controls, as well as preventative slaughtering of otherwise healthy cattle, increasing dissatisfaction ...