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人畜共患疾病之所以越来越严重,一是人类无限制地开发大自然,破坏了动物的生态环境,往往把动物中的病源带到人群中,如对森林,沼泽、荒野的开发,曾把出血热带到人间。二是随着畜牧业的发展,饲养数量和密度逐年增大,防疫卫生、预防接种、检疫、粪便污物处理、消毒等防疫措施跟不?
The reason why zoonotic diseases are more and more serious is that human beings develop nature in an unrestricted manner, destroy the ecological environment of animals, and often bring the source of the disease to the population, such as the development of forests, swamps and wilderness Hemorrhagic fever to the world. Second, with the development of animal husbandry, the number and density of keeping increasing year by year, epidemic prevention and health, vaccination, quarantine, manure and sewage treatment, disinfection and other preventive measures with or without?