Some health experts are criticizing the Centers for Disease Control and Prevention for suggesting schools cancel some sports and activities.

The agency recently released guidance advising schools to cancel high-risk sports and extra-curricular activities, or hold them virtually, due to the recent spike in COVID-19 cases.

The sports include football, wrestling and band.

But an infectious disease expert is calling the guidance "unlikely, unreasonable and unrealistic," saying he worries people will not follow the suggestions.

The CDC director defended the agency, saying in a statement it "prioritized academics over athletics," and noted when its school guidance is followed, it can be incredibly effective.