Page 2 - Daniel Kulp News Today

The first generation of COVID-19 vaccines have been highly effective and have encouraged more people to get vaccinated

The first generation of COVID-19 vaccines have been highly effective, but also have limitations: their efficacy can wane without a booster shot, and they may be less effective against some variants.

The first generation of COVID-19 vaccines have been highly effective and have encouraged more people to get vaccinated. But they also have limitations