February 5, 2015 @nateabele Actually, I think I was wrong about the polio vaccine being retired, but the point is sound, I believe. @nateabele Actually, I think I was wrong about the polio vaccine being retired, but the point is sound, I believe. ← @nateabele You don't have to get a vaccine to avoid polio anymore because other people did. Skipping vaccines prolongs the need for them. @nateabele We still vaccinate for polio despite around 99% global eradication, but we have eradicated small pox, so we skip it. →