Chronic form of this infection show symptoms similar to that of the acute form but may also cause the affected animal to die within the first month until the third month from infection . If the infection appears in atypical form , the infected animal exhibits symptoms like low appetite , diarrhea and retarded growth . If pregnant sows are infected , it causes splay legs , mummified and deformed fetuses and stillbirths . 4 . Swine influenza - is a viral disease that can cause epidemics of acute...











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