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Yeah this is a known thing. That's why we don't vaccinate against polio but try to keep it out of the country.
by sjg007 7y ago
Yeah this is a known thing. That's why we don't vaccinate against polio but try to keep it out of the country.
- IdoRA 7y agoThe US still vaccinates against polio, but we don’t use the OPV anymore: https://www.cdc.gov/vaccines/vpd/polio/index.html https://www.cdc.gov/vaccines/vpd/polio/index.html The OPV is still used in the few countries where there is polio in the wild because it does have advantages over the IPV.
- sjg007 7y agoAh yes, thanks for the clarification.