病毒也可以通过接触扩散，比如当普通人接触了携带者刚接触过的门把手的时候。
It can also be spread by touch, if an infected person touches a door knob which is then touched by another person.
因为这种病毒是在鸡蛋内部生长，所以不接触或者清洗蛋壳并不能阻止沙门氏菌的扩散。
The bacteria grows inside the egg itself, so avoiding touching or washing the shell won't help stop the spread.
洪水后啮齿动物的扩散，以及人类与啮齿动物共占高地后带来的近距离接触，加剧了这种病菌的传播。
Flooding facilitates spread of the organism because of the proliferation of rodents and the proximity of rodents to humans on Shared high ground.
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