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Wanted: Dead or Alive? Is IPV really safer than OPV?
http://204.29.171.80/framer/navigation.asp?charset=utf-8&cc=US&frameid=1565&lc=en-us&providerid=262&realname=PubMed&uid=1721811&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2FPubMed%2F
Poliovirus vaccine options.
Zimmerman RK, Spann SJ.
Department of Family Medicine, University of Pittsburgh (Pa.) School of
Medicine, USA.
As a result of the success of
immunization, indigenous wild poliomyelitis has disappeared from the United
States. Of 142 confirmed cases of paralytic poliomyelitis reported in the United
States from 1980 to 1996, 134 were classified as vaccine-associated paralytic
poliomyelitis (VAPP).
Persons with VAPP have a disabling illness, and this has caught the
attention of the lay media. The risk of VAPP is one case per 750,000 doses
distributed for the first dose of oral poliovirus vaccine (OPV) and one case per
2.4 million doses of OPV distributed overall. Because of this risk, most parents
prefer a vaccine schedule that starts with inactivated poliovirus vaccine (IPV),
even though extra injections are required. IPV does not cause VAPP. New studies
show that high immunization rates can be achieved in disadvantaged populations
with a schedule starting with IPV. The American Academy of Family Physicians now
recommends that the first two doses of poliovirus vaccine should be IPV; that
is, either an all-IPV schedule or a sequential schedule of two doses of IPV
followed by two doses of OPV. OPV is no longer recommended for the first two
doses and is acceptable only under special circumstances, such as when parents
do not accept the recommended number of injections.
Publication Types:
PMID: 9917578 [PubMed - indexed for MEDLINE]
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