It might have a bad risk/benefit ratio. The preliminary evidence I've seen suggests a good risk/benefit ratio. https://www.nature.com/articles/d41586-021-02795

It might have a bad risk/benefit ratio. The preliminary evidence I've seen suggests a good risk/benefit ratio. https://www.nature.com/articles/d41586-021-02795-x https://www.nature.com/articles/d41586-021-02795-x >Those who had recovered from COVID-19 months before receiving their jabs harboured antibodies capable of defanging the mutant spike, which displays much more resistance to immune attack than any known naturally occurring variant. These peoples’ antibodies even blocked other types of coronaviruses. “It’s very likely they will be effective against any future variant that SARS-CoV-2 throws against them,” says Hatziioannou.