Quick update to the Florida long term care facility data to try and assess how effective the vaccinations are in the real world. As of 2/1, all residents and staff of long term care facilities were offered the vaccine. I have not seen any data about the acceptance rate.
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From 1/18-2/21, the number of COVID positive residents has declined 70.6% and the number of COVID positive staff has declined 68.8%. According to the data from worlometers.info, the seven day rolling average of new cases in FL have declined 51% over the same time period. Taken together, this data appears to indicate that the vaccinations are very effective in preventing infections in the real world. The staff lives outside of the facility and without vaccination would be expected to track similarly to the general population. The decline in COVID positive staff was 34.9% more than the decline in the overall population.
I know that this analysis isn't perfect because the LTC report is looking at current positive people and the other data is new cases daily. Also, the vaccine acceptance rate isn't known and neither is the data for when the staff received each shot. When taken with other vaccine studies and trials, this data seems to reinforce the effectiveness.