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But aren't 50% vaccines usually deemed effective enough?

• andygates 6y ago
  Yes. The wacky back-seat epidemiology is new with the many vaccine candidates. Most people won't get an actual choice, they'll be offered what their healthcare provider offers and they can take it or leave it.
  • kenhwang 6y ago
    Well typically there isn't such a large gap in vaccine performance. 62% is about as bad as vaccines get, and in any other circumstance the manufacturer would retrial instead of seek approval. Even the WHO recommends a 70% minimum during pandemic times (with 50%+ being a measure of last resort, which I guess we're at now). On the other hand, 95% is better than the best of the best.
• mxcrossb 6y ago
  50% is effective enough for a society to squash corona, but a purely self motivated person will surely prefer the 90% version.