> However, we have a 30/70 split in number of covid hospitalizations, with 30 being vaccinated people, in countries where the split in the normal population is 90/10. This means that despite some unvaccinated people having had prior infection the vaccine reduces hospitalizations by 20x. Given this data the most effective strategy is to just vaccinate everyone without what is effectively a pointless distinction
No. This is wrong. As the parent noted, the CDC's own data shows that prior infection provides robust protection against severe disease. Both without vaccination:
https://www.cdc.gov/mmwr/volumes/71/wr/mm7104e1.htm#F1_down
https://www.cdc.gov/mmwr/volumes/71/wr/mm7104e1.htm
As well as a substantial additional benefit after vaccination:
https://www.cdc.gov/mmwr/volumes/71/wr/mm7101a4.htm
> Previous COVID-19 illness was associated with reduced odds of severe outcomes (aOR = 0.27; 95% CI = 0.09–0.84).
Moreover, the CDC estimates that over 150M people in the US (out of a country of 330M) have had Covid:
https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/burd...
That's 45% of the US population (before Omicron). There's no rational way to characterize this as insignificant.
No. This is wrong. As the parent noted, the CDC's own data shows that prior infection provides robust protection against severe disease. Both without vaccination:
https://www.cdc.gov/mmwr/volumes/71/wr/mm7104e1.htm#F1_down
https://www.cdc.gov/mmwr/volumes/71/wr/mm7104e1.htm
As well as a substantial additional benefit after vaccination:
https://www.cdc.gov/mmwr/volumes/71/wr/mm7101a4.htm
> Previous COVID-19 illness was associated with reduced odds of severe outcomes (aOR = 0.27; 95% CI = 0.09–0.84).
Moreover, the CDC estimates that over 150M people in the US (out of a country of 330M) have had Covid:
https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/burd...
That's 45% of the US population (before Omicron). There's no rational way to characterize this as insignificant.