In the article “Poliovirus Immunization with Fractional Doses of Inactivated Vaccine,” we incorrectly stated that seroconversion rates to poliovirus types after administration of the first and second dose of full or fractional inactivated poliovirus vaccine were >90%. The sentence should read: “Seroconversion rates to poliovirus types were >90% after the second dose of full or fractional IPV vaccine (see table).”
The corrected version now appears on our website. We apologize for the error.