-
-
Clinical signs are most likely seen in newborn piglets and breeding sows. Most severe disease occurs in young pigs.
-
-
In pigs less than 2 weeks old death losses reach upto 100%. Baby pigs may have become infected before birth and die within 2 days after birth after showing violent shaking and shivering. Piglets infected immediately after birth may show clinical signs within the first 2 days of life and usually die before they are 5 days old.
-
In pigs less than 3 weeks old the disease is characterized by sudden death with few any clinical signs. Death is preceded by fever which may exceed 105F, dullness, loss of appetite, vomiting, weakness, incoordination, and convulsions if vomiting and diarrhoea occur.
-
After 3 weeks of age, pigs usually develop a degree of resistance to the disease, and death losses reduce. Fever is a prominent clinical sign in these growing pigs and usually is followed by loss of appetite, listlessness, laboured breathing, excessive salivation, vomiting, trembling, and marked incoordination, especially of the hind legs (pigs sit like dogs). Death is usually preceded by convulsions. Involvement of the respiratory tract with sneezing, clear to yellowish nasal discharges from nose, rubbing of the nose, and coughing.
-
The disease in adult pigs often is characterized by fever and respiratory signs such as nasal discharges, sneezing, nose rubbing and coughing. Nervous signs such as trembling, incoordination, and itching occasionally occur, and blindness may rarely follow pseudorabies infection. Vomiting and diarrhoea or constipation may also be seen. Sows infected in the early stages of pregnancy may return to heat because of death and resorption of their fetuses. Sows infected in middle pregnancy may eventually abort mummified fetuses, whereas sows infected late in pregnancy often abort or give birth to weak, shaker or stillborn pigs.
-
Cattle and sheep
-
In cattle and sheep, the infection is always fatal. The infection is characterized by, intense itchiness of localised area of skin, licking, rubbing, self –mutilation, incoordination, prostration and weakness, clonic convulsions, teeth grinding, rapid shallow breathing and cardiac irregularities. Death occur in about 2 days after onset of clinical signs
-
Dogs and cats
-
In dogs and cats, the clinical signs similar to ruminants, which include intense pruritus and self-mutilation, whimpering and howling, paralysis of the pharynx and intense salivation and clonic convulsions. Death occurs in 1-2 days
|