Flu Update: Influenza A Declines, Influenza B on the Rise - Latest CDC Recommendations
As one strain of the flu virus declines, another variant is on the rise. Influenza A, particularly the subclade K variant of H3N2, was dominant at the end of last year, causing a spike in flu activity. However, influenza B has been increasing for the past two weeks, making up about 23% of cases tested in labs nationwide at the end of January. Flu activity remains elevated nationally, with most regions stable or improving, except for the Pacific Northwest, where the situation is worsening.
Oregon and six other states are currently experiencing very high levels of flu activity, while twenty more states have high flu activity. The CDC has reported eight additional pediatric deaths associated with the flu, bringing the total to 60 for this season. The majority of these deaths occurred in children who were not fully vaccinated against the flu. The CDC classifies this flu season as high severity for children but moderate severity for adults and those over 65.
The CDC emphasizes the importance of flu vaccination in reducing the risk of flu and its complications. It is still recommended to get vaccinated against the flu this season. The shift from influenza A to influenza B is a typical pattern seen around this time of year, with influenza A more prevalent in the winter months and influenza B emerging later in early spring. Influenza C and D are two other types of influenza, but they are not as concerning, with influenza C causing mild illness and influenza D primarily affecting cattle.
In conclusion, as flu activity continues to fluctuate across the country, it is crucial to stay informed about the latest updates and recommendations from the CDC regarding flu vaccination and prevention. Stay vigilant and take necessary precautions to protect yourself and others during this flu season.