Scientists in charge of developing coronavirus vaccine at Oxford University have warned that the risk of large-scale outbreak is increasing because the disease is transmitted from animals to humans, the Independent reported on the 31st. < / P > < p > Professor Sarah Gilbert of Oxford University believes that due to the change of human life style, the possibility of zoonosis is becoming greater and greater, such as increasing population density, increasing travel abroad, deforestation and so on. < / P > < p > the origin of the new coronavirus pathogen is still a mystery, but most researchers believe that the virus first appeared in bats, and then entered the human body through another animal. The new coronavirus is highly infectious, and SARS virus and West Nile virus are all originated from animals. < / P > < p > the British media called on the international community to do its best to stop illegal trade in wildlife, which is one of the biggest threats to biodiversity in the future. Gilbert said that as the globalization of the world intensifies, the threat of these diseases will only increase in the future. Another Oxford University professor also said: “with the development of the situation, it is very likely that there will be co infection between human and livestock in the future, leading to large-scale disease outbreaks.” < / P > < p > according to the data of the World Health Organization, about 60% of the new infectious diseases in the world have been transferred from animals to humans. Last month, UN experts warned that the number of cases of zoonotic diseases will continue to increase unless action is taken to protect wildlife and the ecological environment as soon as possible.