Prolonged replication of a type 1 vaccine-derived poliovirus in an immunodeficient patient.

Abstract excerpt

VP1 sequences were determined for poliovirus type 1 isolates obtained over a 189-day period from a poliomyelitis patient with common variable immunodeficiency syndrome (a defect in antibody formation). The isolate from the first sample, taken 11 days after onset of paralysis, contained two poliovirus populations, differing from the Sabin 1 vaccine strain by approximately 10%, differing from diverse type 1 wild...

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