Soaring COVID and flu cases, described as 'moderately severe' in number, are prompting hospitals to restore mask mandates
Flu and COVID-19 infections have been increasing for weeks, with high levels of flu-like illness reported in 31 states just before Christmas.
![Soaring COVID and flu cases, described as 'moderately severe' in number, are prompting hospitals to restore mask mandates](https://content.fortune.com/wp-content/uploads/2024/01/GettyImages-1230820240-e1704331214311.jpg?w=2048#)