Early Flu Season Begins in U.S., CDC Reports

• The flu season typically starts in late October or early November, but this year it began in late August to early September.
• Around 3.4% of respiratory samples tested positive for flu in the week of September 26, according to the CDC.
• The early onset remains within expected seasonal variation, according to the CDC.
• Flu season usually peaks between December and February.
• The early detection and onset are based on data from the Centers for Disease Control and Prevention.