The attenuated polio vax does carry a small risk of actually causing illness - is why US switched to IPV vax. https://twitter.com/bodhibrian/status/722998196025221120 …
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Replying to @kath2cats
The polio vax we use now contains killed virus. It can't cause polio, only stimulate antibody production.
@bodhibrian@GidMK@VaccineUK2 replies 0 retweets 2 likes -
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Replying to @bodhibrian
@bodhibrian@kath2cats@VaccineUK The OPV is used in areas where polio is epidemic because the bigger risk of side-effects is 1)3 replies 1 retweet 3 likes -
Replying to @GidMK
@bodhibrian@kath2cats@VaccineUK Outweighed by the greater protection that it offers. Most OECD countries no longer use the OPV.2 replies 1 retweet 2 likes -
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Replying to @bodhibrian
@bodhibrian@kath2cats@VaccineUK Do you know what a systematic review is and why it is done?2 replies 1 retweet 1 like -
Replying to @GidMK
@bodhibrian@kath2cats@VaccineUK Basically the researchers look at every study published on vaccine safety (literally 1000's) and sift 1)1 reply 1 retweet 1 like -
Replying to @GidMK
@bodhibrian@kath2cats@VaccineUK Through them methodically, rating them on a transparent scale. They then take the studies that score 2)1 reply 1 retweet 1 like -
Replying to @GidMK
@bodhibrian@kath2cats@VaccineUK Highest and review their results, coming up with the best possible evidence, taken from ALL studies 3)2 replies 1 retweet 1 like
@bodhibrian @kath2cats @VaccineUK When this was done for MMR, the vaccine is proven safe and effective http://www.cochrane.org/CD004407/ARI_using-the-combined-vaccine-for-protection-of-children-against-measles-mumps-and-rubella … 4)
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