Flu season is back with a vengeance

Respiratory viruses are surging in the United States once again

Flu season

An early flu season continues to pick up steam in the United States. According to weekly data released by the Centers for Disease Control and Prevention today, 4.3% of visits to a healthcare provider are for respiratory illness this week—well above the baseline of 2.5%. (These reports measure influenza like illness, which includes not just inf…