A new strain of the H1N1 influenza virus has been identified by the Centers for Disease Control and Prevention (CDC), raising concerns about its potential threat in the U.S. This strain, known as the “dual mutant,” consists of two mutations called I223V and S247N. These mutations have been found to be resistant to antiviral drugs commonly used to treat the flu, such as Tamiflu.
According to a study published in the journal Emerging Infectious Diseases, at least two cases of the dual mutant flu strain have been confirmed in the U.S. The CDC has detected a total of 101 samples of this virus, which is causing alarm due to its resistance to antiviral medications. While the strain remains susceptible to other approved influenza drugs like baloxavir, the CDC emphasizes the importance of closely monitoring its evolution to prevent further resistance or competitive advantages over other flu strains.
The dual mutant strains have been reported in 15 countries across five continents, with a higher prevalence in Europe. Researchers believe that these mutations have been circulating globally since May 2023 and have been shown to reduce the effectiveness of Tamiflu. Dr. Marc Siegel, a medical expert, expressed concern over the spread of this strain in the southern U.S. states during a typically low flu season, highlighting the need for vigilance and caution.
Despite the resistance of the dual mutant strain to certain antiviral medications, the CDC advises that individuals who contract the flu can still benefit from taking these drugs, especially high-risk patients. While the mutated strains may pose challenges in treatment, experts recommend continuing the use of antiviral drugs or considering alternative options. Additionally, Dr. Siegel suggests a vaccine booster for high-risk groups and the elderly to enhance protection against the flu.
As the flu season continues, the CDC estimates that there have been millions of illnesses, hospitalizations, and deaths related to the flu. To combat the spread of the virus, the CDC recommends that everyone above the age of 6 months receives an annual flu vaccine, especially during peak flu activity. For more health-related updates and articles, visit the Fox News Health website.
Fox News Digital reached out to Roche and the CDC for further comments on the situation. The ongoing monitoring of the dual mutant flu strain underscores the importance of staying informed and taking necessary precautions to prevent the spread of the virus and protect vulnerable populations.