The survival time of African classical swine fever virus in natural conditions depends on the existing environment, and the survival time is different in different environments. Generally, it can survive for about 1 10 days in frozen meat, 1 1 day in feces and 30 days in pigsty. African swine fever virus is not resistant to high temperature, but sensitive to strong acid, strong alkali and other substances, and can be killed at 56℃ for 70 minutes. In a word, the activity of African swine fever virus decreases with the increase of temperature.

Non-pestivirus infection mechanism

If African swine fever is suspected, necessary treatment measures will be taken, such as symptomatic treatment and giving fever-reducing injections to infected pigs. African swine fever virus is different from the existing virus. After the onset of pig infection, the shortest incubation period is 4 days and the longest is 19 days. After infection, it will replicate in macrophages of tonsils and mandibular lymph nodes for 2-3 days. But as long as the number of viruses is small, it will not show obvious clinical manifestations, which is also the reason why many positive pigs turn negative.

As long as there are clinical manifestations, such as fever, vomiting, abortion, etc. At this time, the virus has entered the blood and spread to various organs of the whole body through blood circulation. Injection of antipyretic needle at this time can only relieve the temporary symptoms of pigs. Moreover, after the fever has gone down, the body temperature will rebound again at the interval of 1-2 days or drop sharply below 38 degrees, and it will die in about 2-3 days.