“We’re seeing a lot of nurses with compassion fatigue, and I am really scared how that is going to play out because a lot of the cases we’re seeing are in non-vaccinated individuals,” one western Arkansas nurse told CNN.

Breakthrough infections — infections in vaccinated people — are still rare, and few are life-threatening, but COVID-19’s continued circulation makes them more probable, and it will also help give rise to new variants.

The more people COVID can infect, the higher the possibility of new variants that are more transmissible, deadly or even able to evade the defense of our vaccines.