hog cholera


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hog cholera,

acute, highly infectious viral disease of swine, also called swine fever. It is perhaps the most serious disease of swine in North America. It is characterized by dullness and listlessness, loss of appetite, rise in temperature to between 105°F; (41°C;) and 107°F; (42°C;), diarrhea, and often death. Purple hemorrhagic areas will appear on the abdomen and many pigs display nervous signs, such as circling, incoordination, muscle tremors, and convulsions. Mortality is very high and recovered animals are permanently stunted. The disease is transmitted readily by direct or indirect contact. The virus may enter a herd through contaminated feed, water, equipment, or by contact with an infected animal or person. At one time, feeding pigs raw garbage containing pork scraps from infected pigs was a common cause of infection. For this reason the United States and many other countries now prohibit the feeding of uncooked garbage to pigs. A national hog cholera eradication program has been established in the United States to eliminate all possible sources of virus introduction. A vaccine is available in areas where the disease is still present.

hog cholera

[′häg ‚käl·ə·rə]
(veterinary medicine)
A fatal infectious virus disease of swine characterized by fever, diarrhea, and inflammation and ulceration of the intestine; secondary infection by Salmonella cholerae suis is common. Also known as African swine fever.
References in periodicals archive ?
It is designed to prevent the hog cholera virus from entering Japanese farms, it said.
debut, hog cholera had spread to at least 35 states; a single Indiana company lost 11,000 hogs in the fall of 1896.
Scientists at ARS' National Animal Disease Center at Ames, Iowa, did their part to help drive out hog cholera by refining new, rapid laboratory tests for diagnosis, in part so that the tests could be practically applied in a field program.
Therefore, the rabies vaccine has become the fifth compulsory variety of immunity after the foot-and-mouth disease, bird flu, blue ear disease and hog cholera.
And in the days before vaccinations and antibiotics were common, hog cholera also posed a very real threat.
Currently certain imports from Austria are banned because of the hog cholera outbreak.
were likely exaggerated, but farmers desperate to protect herds against hog cholera saw oilers as cheap insurance.