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  • October 8, 2026
  • Last Update July 17, 2026 9:28 pm
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23-Valent Pneumococcal Polysaccharide Vaccine Provides Protection Up To 6 Years Following Vaccination

23-Valent Pneumococcal Polysaccharide Vaccine Provides Protection Up To 6 Years Following Vaccination

Six years following vaccination with 23-valent pneumococcal polysaccharide vaccine in a Chinese population, antibody levels remained high, though not as high as 28 days following vaccination.

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