猪瘟是非洲猪瘟的8倍。净化国家对待猪瘟和非洲猪瘟的态度Risk months for swine fevers: July and May The scientists write that their results estimated that the risk for CSFv entry was 7 times higher and further spread between US airports than for ASFv. For both diseases, they continued, July and May were the months at highest risk for entry。
7. 猪瘟净化猪瘟净化对非洲猪瘟防控的意义（美国1981年的观点）African swine fever (ASF) is a swine disease that cannot be distinguished clinically from hog cholera.
If hog cholera had continued in the United States,it would have been easy to initially mistake an introduction of ASF as just another case of hog cholera, making ASF much more difficult to recognize and eradicate quickly.
An additional benefit, in relation to protection against exotic disease, lies in the much improved position of the United States in regard to African swine fever following eradication of hog cholera.
17. 猪瘟的诊断绝不是一件轻而易举的事情Diagnosis of hog cholera on the basis of clinical observation had come to be regarded as an art as well as a science, as illustrated by the words of S. H. McNutt of the University of Wisconsin, speaking to a symposium on hog cholera in Minneapolis in 1961: ". . . the only typical thing about hog cholera is that it is always atypical. In the diagnosis of hog cholera one employs common sense, the least common of the senses . .