Reporter : Li Yun / Editor : Li Quan / https://www.ntdtv.com/gb/2021/01/22/a103037689.html / Translation, editing : Gan Yung Chyan, KUCINTA SETIA
Image : Experts worry that if the African swine fever virus mutates and infects humans, the consequences will be disastrous. (Greg Baker/AFP/Getty Images)
As the SARS-CoV-2 (CCP virus) epidemic continues to heat up across China, two new strains of African swine fever virus appeared on Chinese pig farms. According to industry sources, the virus mutation is likely to be caused by illegal copycat vaccines.
According to a Reuters report on 21 January, the outbreak of African swine fever is still severe. Two new strains of African swine fever have raged in many farms of China’s fourth largest pork producer, New Hope Liuhe, infecting more than 1,000 sows and hofs that gained weight.
Compared with the wild mainstream virus strain, this new African swine fever virus strain lacks the two genes "MGF360" and "CD2v". The disappearance of these two genes is the same as the previous failed vaccine developed by the Chinese laboratory, giving new hope The scientists of Liuhe and the Beijing Veterinary Laboratory were shocked, and they hurried to inform their superiors.
Experts believe that this virus strain is definitely man-made, not a natural mutation.
Yan Zhichun, chief scientific officer of New Hope Liuhe Company, said that the exact source of the variant strains is not yet known, but the epidemic came from some genetically modified viruses.
Yan Zhichun revealed that the New Hope Group has discovered that the raging new virus strain is missing both the MGF360 gene and the CD2v gene. He believes, "This is absolutely man-made, this is not a natural strain."
Studies have shown that removing certain genes such as MGF360 from African swine fever can help pigs develop immunity but the modified virus cannot be successfully developed as a vaccine because it tends to subsequently mutate back to a harmful state. Some substandard non-plague vaccines may only be manufactured by removing genes from the virus, causing potential complications.
Although the currently found variant strains lack one or two key genes present in the native African swine fever virus, they will not be as deadly as the swine fever virus that swept China in 2018 and 2019, but they can cause chronic diseases and reduce the risk of healthy piglets. their quantity, and increase the piglet death rate.
Industry insiders and experts say that many Chinese pig farmers use unapproved vaccine products to try to prevent African swine fever, but experts warn that illegal vaccines can cause accidental infections in farmed pigs, and this infection is spreading.
The industry is concerned that the new African swine fever strain may spread through infected pork around the world, thereby infecting farmed pigs that feed on food waste, increasing pressure on food security during the epidemic.
The emergence of the new swine fever epidemic on pig farms in China coincided with the outbreak of the pandemic in China, which made the various epidemic disasters in China worse.
Informed netizens disclosed that at the beginning of the outbreak in Wangkui County, Suihua, Heilongjiang Province, from 13 to 14 January, all villagers in the two villages of Huiqi Town where the epidemic was severe were taken away and quarantined, and all livestock were slaughtered and buried. At present, Wangkui County has been adjusted to a high-risk area.
Because all parts of the CCP are used to concealing facts and covering up the sources of the epidemics, it is not clear what threat the epidemic situation of the local slaughtered and buried infected livestock poses to the communities.
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