What is the difference between this swine fever outbreak at a pig farm in Tochigi Prefecture, Japan, and African swine fever?

This swine fever outbreak at a Japanese pig farm is just common swine fever, which is different in terms of infectivity and virulence.

There are many types of swine fever, including common swine fever, acute swine fever, and slow-onset swine fever. The African swine fever is usually singled out because it is the most virulent and lethal. In general, the difference between the Japanese swine fever epidemic and African swine fever is that African swine fever is more serious. Specifically, there are three differences between Japanese swine fever and African swine fever: firstly, there is a difference in the vector of infection, secondly, there is a difference in the virulence of the viruses, and lastly, there is a difference in the lethality of the viruses. The following will explain these three points in detail:

First, Japanese swine fever and African swine fever is first of all different vectors: although the Japanese swine fever and African swine fever this time are rna virus infection. But these two viruses are very different. Japanese swine fever is transmitted through contact, while African swine fever is transmitted by insect vectors, through the soft ticks of blood-sucking insects. Therefore, for the prevention of African swine fever, it is not enough to isolate the sick pigs, but also to disinfect the whole pig farm in order to kill all the ticks that carry the virus. So in order to prevent Japanese swine fever and African swine fever, each has a different focus: Japanese swine fever prevention focuses on close isolation of sick pigs, while African swine fever prevention focuses on thorough extermination of pig farms to eliminate all soft ticks.

Secondly, the toxicity of Japanese swine fever and African swine fever is different: Japanese swine fever has a more moderate onset, while African swine fever has a very rapid onset. Japanese swine fever is mainly manifested in digestive symptoms, such as anorexia and diarrhea. African swine fever is characterized by systemic symptoms, such as high fever, hemorrhagic spots all over the body, and convulsions. This shows that African swine fever is more toxic, African swine fever spreads quickly through the lymphatic circulation to the whole body, so there are systemic poisoning symptoms.

Third, Japanese swine fever and African swine fever lethality is different: Japanese swine fever lethality is less than 50 percent, while African swine fever lethality is close to 100 percent. That is to say, if the pig suffers from African swine fever, the relevant symptoms that we must urgently rescue, otherwise it is easy to die.