The US CDC has released data showing that overall flu activity remains low in most states.

While four states (Massachusetts, New Hampshire, North Dakota, and Oregon) are now reporting local flu activity; 42 states, the District of Columbia, Puerto Rico, and the US Virgin Islands continue to report only sporadic flu activity. Influenza A H1N1 viruses have been the most commonly identified flu viruses in the last three weeks.

Influenza-like Illness Surveillance: For the week ending October 20 (week 42), the proportion of people seeing their health care provider for influenza-like illness (ILI) was 1.5% and remains below the national baseline of 2.2%. All 10 regions reported a proportion of outpatient visits for ILI below their region-specific baseline levels.