Short term side-effects are known. Long term are not. Though I can see some possible benefits in developing pangolin armour and bat sonar...
Many unknowns at this point: Will the vaccine provide full protection, or only reduced symptoms? Will it give different levels of protection to people in different risk groups? Will the 'immunity' last more than a few months? Will it actually prevent transmission to un-immunised people? Will the body using Coronavirus genetic information to replicate viral proteins... create some unforseen effects years down the track?
But my main issue is the backwards methodology, combined with the low sample size: 85 un-vaccinated subjects got Covid, from the 94 who got Covid. A 90% efficacy claim based on that is tenuous to say the least.
And now you have Fauci talking about 95% effectiveness, which is not the same as clinical efficacy, by the way. Reputable scientists will tell you that this claim is not only premature, but unlikely to hold up in real-world application.
And for the record, I'm not actually an 'anti-vaxxer'. Really.
