CDC warns of 'high' respiratory virus activity as cases increase across US
Respiratory illness activity – a measure of how often conditions like the common cold, flu, COVID-19, and respiratory syncytial virus are diagnosed – is currently "high" in the United States, according to an update from the Centers for Disease Control and Prevention.
Currently, New Hampshire is listed as having "very high" respiratory virus activity, and 11 states – Arizona, Delaware, Georgia, Idaho, Kansas, Kentucky, Louisiana, Oklahoma, Tennessee, Texas and Wisconsin – are listed as having "high" activity, CDC data shows.
Meanwhile, 29 states are listed as having "moderate" activity, and the remaining states are listed as having "low" activity.
Particularly, COVID-19, seasonal flu and RSV activity are increasing across the country with a rising number of people visiting emergency departments and the number of tests coming back positive for one of the three conditions, the CDC said.
The CDC estimates that there have been at least 3.1 million illnesses, 37,000 hospitalizations and 1,500 deaths from flu so far this season; these figures are based on the latest date for which data is available, which is the week ending Dec. 21.
Five pediatric deaths were reported during the week of Dec. 21, bringing the total number to nine so far during the 2024-25 season.
The CDC says levels of the COVID-19 virus being detected in wastewater are increasing, as are the number of emergency department visits and laboratory test positivity rates.
"Based on CDC modeled estimates of epidemic growth, we predict COVID-19 illness will continue to increase in the coming weeks as it usually does in the winter," the CDC said in a statement.
For RSV, the CDC said emergency department visits and hospitalizations are increasing among children and hospitalizations are increasing among older adults in some areas.
Flu and COVID-19 vaccines are available for both children and adults, and RSV vaccines are available for certain groups of adults. However, vaccination coverage remains low, meaning "many children and adults lack protection from respiratory virus infections provided by vaccines," according to the CDC.
As of Dec. 21, only 41.9% of adults were vaccinated against the flu and 21.4% were vaccinated with the updated 2024-25 COVID-19 vaccine. Additionally, just 43.7% of adults ages 75 and older have received the RSV vaccine, according to CDC data.
Nearly half of all children are vaccinated against the flu at 42.5%, but just 10.3% have received the updated COVID-19 vaccine.
