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Polio Vaccine

Mutated Sabin poliovirus shed after administration of oral poliovirus vaccine

Published in Vaccine Weekly, September 1st, 2004

Sabin poliovirus type 3 containing the nucleotide 472 uracil-to-cytosine point mutation is shed after administration of oral poliovirus vaccine.

According to recent research published in the Journal of Infectious Diseases, "A uracil-to-cytosine point mutation at nucleotide (nt) 472 of Sabin oral poliovirus vaccine (OPV) type 3 is found in conjunction with vaccine-associated paralytic poliomyelitis (VAPP). Direct RNA extraction and mutant analysis by polymerase chain reaction and restriction enzyme cleavage were used to identify this point mutation in clinical samples. A total of 238 stool samples were obtained from 28 healthy infants for 6 weeks after OPV...

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