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2001 JUN 13 - (NewsRx.com & NewsRx.net) --
by N.R. Saltmarsh, staff medical writer - Fears that a change in the recommended vaccination schedule to include inactivated polio vaccine (IPV) would alarm parents sufficiently to lower vaccine coverage have not been borne out.
The January 1997 recommendation sparked concern that parents or physicians would be reluctant to accept IPV, but the experience at two large health maintenance organizations (HMOs) does not point to a significant difference in coverage in two-year-old patients since institution of the new policy.
R.L. Davis and colleagues reported their experience at Group Health Cooperative and Kaiser Permanente Northern California. They assessed up-to-date status, cumulative time spent up-to-date, and the number of missed-opportunity visits, in 12- and 24-month-old children ("Impact of the change in polio vaccination schedule on immunization coverage rates: A study in two large health maintenance organizations," Pediatrics, 2001;107(4):671-676).
Their findings were as follows:
* At both HMOs, children who received IPV were as likely to be up-to-date at 12 months as children who received oral poliovirus vaccine (OPV)
* At Group Health, children who received IPV were slightly more likely to be up-to-date at 24 months