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ایمنی گروهی
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Herd immunity, английский
- The fact of a group of people being resistant to a specific disease, because many individuals in the group are immune to or immunised against the microorganism which causes it
- A reduction in disease prevalence brought about when few individuals in a population are susceptible to an infectious agent
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مبتلا به نقص سیستم ایمنی, фарси
ایمنی, фарси
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