More vaccines, fewer mask rules as US keeps fighting COVID

Dr. Rhonda Achonolu comforts her son Amechi, 7, on Wednesday as he is inoculated with the Pfizer COVID-19 vaccine for children five to 12 years old at The Children's Hospital at Montefiore, in the Bronx borough of New York. (AP Photo/Mary Altaffer, File)

The United States is steadily chipping away at vaccine hesitancy and driving down COVID-19 cases and hospitalizations to the point that schools, governments and corporations are lifting mask restrictions yet again.