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Look up what happened in India with the polio vaccine..

avgDev 7y ago
Woah, I just looked it up....I have never heard of this. According to a study 490,000 cases of paralysis were caused by the oral polio vaccine from 2000-2017. Wow.
- 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 ago
    The 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 ago
      Ah yes, thanks for the clarification.
- hhas01 7y ago
  Where the heck are you getting that 490,000 number from? The oral polio vaccine (aka OPV/Sabin) uses a weakened form of the live virus, which known to revert occasionally to virulent form. Here’s what the WHO site says: “Since 2000, more than 10 billion doses of OPV have been administered to nearly 3 billion children worldwide. As a result, more than 13 million cases of polio have been prevented, and the disease has been reduced by more than 99%. During that time, 24 cVDPV outbreaks occurred in 21 countries, resulting in fewer than 760 VDPV cases.” https://www.who.int/news-room/q-a-detail/what-is-vaccine-derived-polio https://www.who.int/news-room/q-a-detail/what-is-vaccine-der...
  - avgDev 7y ago
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6121585/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6121585/ From article: We calculated the number of paralyzed children each year which exceeded the expected numbers (assuming a NPAFP rate of 2/100,000) and the results are displayed in Table 2. A total of 640,000 children developed NPAFP in the years 2000–2017, suggesting that there were an additional 491,000 paralyzed children above our expected numbers for children with NPAFP.
    - danieltillett 7y ago
      This is not a good paper and that number of 491,000 children is ludicrous.

Woah, I just looked it up....I have never heard of this. According to a study 490,000 cases of paralysis were caused by the oral polio vaccine from 2000-2017. Wow.

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 ago
  The 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 ago
    Ah yes, thanks for the clarification.
hhas01 7y ago
Where the heck are you getting that 490,000 number from? The oral polio vaccine (aka OPV/Sabin) uses a weakened form of the live virus, which known to revert occasionally to virulent form. Here’s what the WHO site says: “Since 2000, more than 10 billion doses of OPV have been administered to nearly 3 billion children worldwide. As a result, more than 13 million cases of polio have been prevented, and the disease has been reduced by more than 99%. During that time, 24 cVDPV outbreaks occurred in 21 countries, resulting in fewer than 760 VDPV cases.” https://www.who.int/news-room/q-a-detail/what-is-vaccine-derived-polio https://www.who.int/news-room/q-a-detail/what-is-vaccine-der...
- avgDev 7y ago
  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6121585/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6121585/ From article: We calculated the number of paralyzed children each year which exceeded the expected numbers (assuming a NPAFP rate of 2/100,000) and the results are displayed in Table 2. A total of 640,000 children developed NPAFP in the years 2000–2017, suggesting that there were an additional 491,000 paralyzed children above our expected numbers for children with NPAFP.
  - danieltillett 7y ago
    This is not a good paper and that number of 491,000 children is ludicrous.