Let us take a look at the viruses of swine streptococcus and avian flu which both came from domesticated pigs and poultry that are used for human consumption.

 
  • 猪和鸡成为人类的食粮已上万年历史,但为什么这些新孳生的传染病却愈来越来势汹汹呢?
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目录 附录 查词历史