Antibody titers against vaccine and contemporary wild poliovirus type 1 in children immunized with IPV + OPV and young adults immunized with OPV
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文摘

Low herd immunity in adults in Russia to poliovirus causing outbreak in Congo in 2010.

Good herd immunity in children immunized with IPV + OPV to the same virus.

Titers to vaccine strains may be misleading in regard to circulating wild poliovirus.

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