Opinion

... in response to History of Vaccination
  1. Ricardo de La Reina Ricardo de La Reina United States says:

    Catherine Shaffer writes well, but I feel she must be too young to appreciate one of those who made vaccine history. She mentions Jenner, Pasteur, and even Sabin, but their is no mention of Jonas Salk. The Salk vaccine is still the choice in industrialized countries.

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