| http://www.w3.org/ns/prov#value | - In the case of serious foreign pathogens such as those causing flu, measles, polio, hepatitis, and other life-threatening diseases, we can often pre-train our immune system by introducing a small amount of the pathogen into our bodies ??? usually it???s a killed version of the pathogen that cannot harm us but which still retains the identifying surface proteins.
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