Just to wrap up the Chilean experience with boosters
Attachment 412726
"Fully vaccinated" is 80% Sinovac x 2. Booster #1 started in August 2021 and #2 in January, both mostly Pfizer.
Rolling out the mRNA booster quickly was key in keeping the death rate from Delta and Omicron from spiking even more. Of note is the lower death rate for the Sinovac vaccinated vs unvaccinated during the first wave of Delta in October. Didn´t help much when Omicron and Delta laggards converged in February. Probably close to 80% of Chileans have a booster.
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