Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs43054-021-00086-8/MediaObjects/43054_2021_86_Fig1_HTML.png)
In COVID19 pandemic, should we vaccinate the better seroconverters or the most vulnerable? COVID19 coronavirus disease 2019
In COVID19 pandemic, should we vaccinate the better seroconverters or the most vulnerable? COVID19 coronavirus disease 2019