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November 4, 1998

Simian Virus 40–Contaminated Polio Vaccine and Cancer Rates—Reply

Author Affiliations

Margaret A.WinkerMD, Senior EditorIndividualAuthorPhil B.FontanarosaMD, Senior EditorIndividualAuthor

JAMA. 1998;280(17):1481-1482. doi:10-1001/pubs.JAMA-ISSN-0098-7484-280-17-jbk1104

In Reply.— Dr Innis does not question the methods or findings of our study or its conclusion that birth cohorts immunized with SV40-contaminated poliovirus vaccine during infancy or childhood have not experienced an increased risk of cancer. Instead, his letter concerns a statement in our introduction. He feels his 1968 letter to Nature,1 1 of 7 references given to make this point, should not be considered small or as having short follow-up.

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