It is reported that this is the first case of African swine fever in Korea. After the infection was confirmed, South Korea sent the African swine fever police. According to the information from the Ministry of Agriculture, Forestry, Animal Husbandry and Food of Yonhap News Agency and South Korea, South Korea is the ninth Asian country after China, Mongolia and Viet Nam.
It is reported that this is the first case of African swine fever in South Korea, and South Korea raised the alert level of African swine fever to the highest level after confirming the infection.
What measures should be taken to prevent and control the spread of African swine fever in the face of the fierce epidemic? Let's get to know each other.
This time, African swine fever occurred in South Korea. It is understood that Paju City is close to North Korea. It is speculated that the wild boar in the African swine fever epidemic area in North Korea may cross the military non-dividing line and spread the epidemic to South Korea.
At present, South Korea has completely culled and buried 3,950 pigs in the epidemic area of Paju City, where African swine fever virus was first discovered. At the same time, orders have been issued to pig farms, slaughterhouses, feed mills and entry-exit vehicles to ban transportation activities within 48 hours from 6: 40 am.
Why is African swine fever coming?
ASF can be transmitted through many ways, generally through direct contact between infected pigs and healthy susceptible pigs, or indirectly through feeding contaminated swill, contaminated feed, bedding, vehicles, equipment and clothes, among which digestive tract and respiratory tract are the most important ways of infection.
In addition, under natural infection conditions, the incubation period of ASFV (African swine fever virus) is 3- 19 days, and infected pigs can detoxify during the incubation period, and a large amount of toxins can be excreted through secretions and excretions after clinical symptoms appear.
Moreover, it has strong resistance to the environment, and can survive for more than 6 months in the corpse and for several years at low temperature.
Fortunately, African swine fever is highly contagious among pigs, but it will not infect humans. Once pigs are infected with the virus, the mortality rate is very high.
What measures should be taken to prevent and control the spread of diseases at present?
Undoubtedly, the most direct and effective way is to develop African swine fever vaccine. However, due to the complicated infection mechanism of African swine fever virus, no effective vaccine against African swine fever has been produced in the world so far.
Therefore, the main measures at present are strict biological safety measures to eliminate the existing African swine fever virus in pig farms and prevent the virus from contacting pigs.
In addition, countries that have not yet broken out of ASF must realize that diseases may sneak into non-ASF countries.
Although the existence of geographical obstacles (such as rivers) will reduce the possibility of infection, all countries should thoroughly analyze the potential penetration routes.
At present, the preparatory measures we must take are:
1. The government must take strict measures to supervise swill feeding.
Fences must be installed to prevent wild boar from wandering around.
After visiting any country where ASF broke out, tourists must be quarantined for 5 days.
4. Some important agricultural countries, such as Australia, Canada, European Union countries, New Zealand and the United States, strictly control food waste from international flights based on animal health problems, and internationally transported waste must be sealed and transported to approved incineration facilities.
In a word, ASF is one of the most deadly viral diseases affecting pigs. Once a pig is infected, its influence is irreversible.
At present, nine countries in Asia have not been spared. In order not to increase the spread of ASF, we must actively take various preparatory measures.