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the claim

The live attenuated oral polio vaccine virus can spread from vaccinated people to unvaccinated contacts and immunise them.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that the live attenuated oral polio vaccine virus can spread from vaccinated people to unvaccinated contacts and immunise them?

Yes. Official CDC background material and two peer-reviewed modelling papers state that live attenuated oral polio vaccine induces immunity by infecting recipients and their close contacts, so the vaccine virus does spread and immunise unvaccinated contacts. Other retrieved items concern OPV-related paralytic risk or unrelated vaccines and do not bear on the contact-immunisation claim.

Verdict: SUPPORTED · 2 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 2
Background:Research design and methods:Results:Conclusions:IntroductionMethodsResultsDiscussionConclusionsSupplementary MaterialFundingCHEERS 2022 ChecklistReferences
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Background:Research design and methods:Results:Conclusions:IntroductionMethodsResultsDiscussionConclusionsSupplementary MaterialFundingCHEERS 2022 ChecklistReferences. (n.d.). stacks.cdc.gov. https://stacks.cdc.gov/view/cdc/127456/cdc_127456_DS4.xml

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More for · 1
Assessing the stability of polio eradication after the withdrawal of oral polio vaccine
2018
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Assessing the stability of polio eradication after the withdrawal of oral polio vaccine. (2018). hal.science. https://doi.org/10.1371/journal.pbio.2002468

2 recorded entries grouped as this source

Additional records of the same source are shown below. They are not counted as additional sources.

Assessing the stability of polio eradication after the withdrawal of oral polio vaccine
2018
Get citation
Famulare, M., Selinger, C., McCarthy, K. A., Eckhoff, P. A., & Chabot-Couture, G. (2018). Assessing the stability of polio eradication after the withdrawal of oral polio vaccine. doi.org. https://doi.org/10.1371/journal.pbio.2002468

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