Summary
Almost 20 U.S. states are experiencing the highest level of flu activity, according to a report from the Centers for Disease Control and Prevention (CDC). A significant increase in influenza cases was observed nationwide in December, with many states hitting "very high" levels. The surge is attributed to lower vaccination rates, a new flu strain, and increased indoor activities during colder weather.
Key Facts
- 19 states have reached the highest level of flu activity by December 27.
- 30 states fall into the "very high" tier, which includes Levels 11 to 13 for flu activity.
- The number of states in the "very high" category increased from 6 to 30 over December.
- Factors contributing to increased flu cases include lower vaccination rates and a new flu strain, H3N2 subclade K.
- Indoor gatherings during colder months and holiday periods may also increase flu transmission.
- Experts recommend vaccination to help reduce the severity of illness.
- Some experts note that high flu activity is typical for this time of year but is more pronounced due to specific circumstances.
- Kids returning to school post-holidays could drive further transmission of flu.