Key result
Formaldehyde-inactivated experimental vaccines from type 1 poliovirus live-attenuated strains showed differences in potency and specificity compared to wild-type IPV in normal and transgenic mice.
Population
Normal mice and transgenic mice expressing the human poliovirus receptor
Comparison
Formaldehyde-inactivated virus samples from type… vs Mahoney wild-type poliovirus strain
Design
Preclinical
Authors
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Potency differences in mice are hypothesis-generating for attenuated-strain IPV; should not yet influence vaccine development.
This study describes a novel transgenic mouse model and identifies differences in potency and specificity when using live-attenuated strains for inactivated polio vaccine production compared to wild-type strains.
Martín et al. (2003) studied Poliovirus immunization. Formaldehyde-inactivated virus samples from type 1 poliovirus live-attenuated strains vs. Mahoney wild-type poliovirus strain was evaluated on Virus infectivity and immunogenicity (potency and specificity). Formaldehyde-inactivated experimental vaccines from type 1 poliovirus live-attenuated strains showed differences in potency and specificity compared to wild-type IPV in normal and transgenic mice.
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