Health officials are warning of a potentially punishing flu season as a new strain of influenza circulates widely, prompting concern among doctors and researchers as winter illnesses accelerate nationwide.
The strain drawing attention has been dubbed the “super flu,” a variant of influenza A H3N2 known as subclade K. Previous H3N2 outbreaks have been associated with more intense illness and longer recovery periods compared to other flu strains.
The Centers for Disease Control and Prevention has reported that the variant first surged in the United Kingdom before spreading across Europe and Australia, eventually reaching the United States.
“The United Kingdom got hit pretty hard by this,” said Neil Maniar of Northeastern University. “I think that’s a pretty good harbinger of what we are likely to see here. This is going to be a very difficult flu season.”
People infected with the K subclade have reported classic flu symptoms such as high fever, severe body aches, extreme fatigue, persistent cough, sore throat, and intense headaches. Doctors say many patients are also experiencing shortness of breath, chest pain, gastrointestinal distress, and lingering weakness well beyond the acute phase of illness.
As case numbers continue to climb, physicians stress the importance of early treatment, particularly for patients at risk of severe disease. Antiviral medications remain a central tool in managing serious infections.
The CDC currently recommends four antiviral drugs: Tamiflu, Xofluza, Relenza, and Rapivab. Xofluza is prescribed as an oral treatment for uncomplicated flu in patients aged 5 and older. Relenza is approved for individuals 7 and older, while Rapivab can be administered to patients as young as 6 months.
“Be sure to drink plenty of fluids, get sufficient rest and take Tylenol or Advil to manage fever, headaches and muscle aches at home,” said Dr. Mark Mulligan of NYU Langone Health’s Vaccine Center.
Public health experts say warnings about the flu have been circulating since early fall, but the emergence of the super flu strain combined with lagging vaccination rates has intensified concern.
“This can be a very serious illness. We need to take it seriously, and we need to take measures to protect ourselves,” Maniar said. “As we go deeper into the flu season, this is likely to be a tough one.”
Infectious disease specialists fear that relatively low vaccine uptake could result in one of the most severe flu seasons in recent memory, though they emphasize there is still time to reduce the impact.
“It is certainly not too late, especially as we’re thinking about holiday gatherings and travel,” said Dr. Andrew Pekosz. “Now would be a great time for individuals to go out and get that last influenza vaccine or that COVID vaccine to provide one layer of protection for this holiday season.”
Some experts have noted concerns that this year’s flu vaccine may not be a perfect match for the K subtype. Pekosz said it nonetheless remains effective.
“There are three different influenza strains that cause influenza. The vaccine covers all three. And with two of them, it looks like there’s a pretty good match right now … and we think it’ll provide at least partial protection against this clade K H2N2 virus.”
The CDC continues to recommend annual flu vaccination for everyone aged 6 months and older.
While the latest nationwide flu data has been delayed due to the Christmas holiday, figures through mid-December already showed a sharp rise in positive cases. Virus activity has reached “very high” levels in New York, New Jersey, Rhode Island, Louisiana, and Colorado. Manhattan alone recorded a 104% jump in infections earlier this month.
“We see the sudden spike in New York because of their more dense population,” said Dr. Ulysses Wu of Hartford Hospital. “They’re a center for international as well as domestic travel.”
Significant flu activity has also been reported in Connecticut, Idaho, Massachusetts, Michigan, and South Carolina, adding to fears of a widespread and difficult season ahead.
{Matzav.com}