Swine pox, which belongs to the pox disease complex, is caused by two antigenically different poxviruses .

猪痘属于痘病群，是由两种抗原上不同的痘病毒引起的。

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Swine pox, which belongs to the pox disease complex, is caused by two antigenically different poxviruses .

猪痘属于痘病群，是由两种抗原上不同的痘病毒引起的。

youdao