https://www.cnn.com/2021/01/29/health/johnson-coronavirus-vaccine-results/index.html
Ouch.
I was concerned this might happen:
Lots of variables, my guess is it will be a combination of:
1. Who delivers doses first
2. Efficacy of J&J vaccine
3. Point-of-service availability of J&J vaccine vs. mRNA vaccine
With only 66% efficacy this vaccine barely hits the threshold for mitigating spread/herd immunity. Indeed, it’s a cheap vaccine for the 3rd world.
I wonder how JNJ’s vaccine performs against variants compared to mRNA vaccines. In the unlikely event it performs better (and mRNA boosters for variants take too long to bring to market) that might be a game changer.
ETA: The vaccine efficacy was 72% in the US and 66% globally, which implies an even lower efficacy than 66% outside the US. Tells me:
1. It’s likely less effective against variants
2. It might not be “vaccine for the 3rd world”