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J Virol, June 1998, p. 5056-5060, Vol. 72, No. 6
Department of Molecular Genetics and
Microbiology, School of Medicine, State University of New York at
Stony Brook, Stony Brook, New York 11794
Received 12 January 1998/Accepted 27 February 1998
Skeletal muscle injury is known to predispose its sufferers to
neurological complications of concurrent poliovirus infections. This
phenomenon, labeled "provocation poliomyelitis," continues to cause
numerous cases of childhood paralysis due to the administration of
unnecessary injections to children in areas where poliovirus is
endemic. Recently, it has been reported that intramuscular injections
may also increase the likelihood of vaccine-associated paralytic
poliomyelitis in recipients of live attenuated poliovirus vaccines. We
have studied this important risk factor for paralytic polio in an
animal system for poliomyelitis and have determined the pathogenic
mechanism linking intramuscular injections and provocation
poliomyelitis. Skeletal muscle injury induces retrograde axonal
transport of poliovirus and thereby facilitates viral invasion of the
central nervous system and the progression of spinal cord damage. The
pathogenic mechanism of provocation poliomyelitis may differ from that
of polio acquired in the absence of predisposing factors.
0022-538X/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
Mechanism of Injury-Provoked
Poliomyelitis
*
Corresponding author. Mailing address: Department of
Molecular Genetics and Microbiology, School of Medicine, State
University of New York at Stony Brook, Stony Brook, NY 11794. Phone:
(516) 632-8806. Fax: (516) 632-8891. E-mail:
gromeier{at}asterix.bio.sunysb.edu.
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