Researchers at the Mayo Clinic evaluated about 90,000 messages between doctors and their patients and found differences in patients' responses based on the doctor's gender and area of practice

The BA.5 strain represented 65% of cases from July 3 to 9, according to data from the Centers of Disease Control and Prevention.

Nurses are taking to social media, describing grim hospital scenes and imploring Americans to stay safe as hospitals reach capacity limits. "We're seeing the worst of the worst," says one nurse.