A new and highly contagious strain of influenza is spreading rapidly across the United States, driving a worrying surge in severe symptoms and hospital admissions, particularly among children. Designated as subclade K of the H3N2 virus, this flu variant is proving to be a formidable threat this season.
Severe Symptoms and Critical Warning Signs
The K variant is notable for causing intense symptoms that are hitting both the young and old hard. Reported symptoms include dangerously high fevers that can spike to 105 degrees Fahrenheit, a persistent and harsh cough, vomiting, diarrhoea, and debilitating body aches.
Dr Juanita Mora, a leading immunologist, has highlighted three critical red flags that require immediate medical attention. These are a high fever that does not respond to medication or break, noticeable shortness of breath, and clear signs of dehydration. She emphasises that the latter is especially dangerous for young children and the elderly.
Widespread Impact and Affected Regions
Data from the Centers for Disease Control and Prevention (CDC) confirms a significant nationwide increase in medical visits for respiratory illnesses. The situation is most acute in several states, where activity has been classified as "very high."
The states currently experiencing the most intense pressure from this flu wave are New York, New Jersey, Rhode Island, Louisiana, and Colorado. Hospitals in these regions are reporting a marked rise in paediatric cases linked to the new variant.
Vaccination Remains a Vital Defence
While this season's flu vaccine was not specifically formulated to target the emerging subclade K, public health experts are urging the public not to forego their jab. Dr Neil Maniar and other specialists strongly recommend vaccination, stating that even a mismatched vaccine can significantly reduce the severity of illness if someone becomes infected.
The overarching advice from health authorities remains clear: get vaccinated, practise rigorous hand hygiene, and stay home if you feel unwell to help curb the spread of this potent new flu variant.
