https://www.statnews.com/2020/12/19/a-s ... -vaccines/The [Moderna] vaccine’s efficacy appeared to be slightly lower in people 65 and older, but during a presentation to the Food and Drug Administration’s advisory committee the company explained that the numbers could have been influenced by the fact there were few cases in that age group in the trial. The vaccine appeared to be equally effective across different ethnic and racial groups.
A side-by-side comparison of the Pfizer/BioNTech and Moderna vaccines
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John
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A side-by-side comparison of the Pfizer/BioNTech and Moderna vaccines
The article goes into pretty good detail. Aside from the one point quoted below, seems to me another issue might be the more strict distribution protocols associated with the Pfizer vaccine because of its temperature requirements. Moderna might be better for rural areas and pharmacies, while Pfizer would be limited to facilities with the needed refrigeration capabilities. Possibly these facilities would have more experienced personnel. Pharmacy chains have announced they will be hiring people to help administer the vaccines. Nevertheless, I'm thinking there is more room for mishandling with the Pfizer vaccine and the Moderna might be better for this reason.