| http://www.w3.org/ns/prov#value | - Young children are a risk group for which immunization is recognized as protective. (Key Words: Age groups, child; Influenza virus A; Orthomyoxoviridae; Pneumonia) El impacto cl??nico y epidemiol??gico de la infecci??n por virus influenza (VI) en ni??os es significativo.
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