Health Desk
ISLAMABAD — Pakistan’s National Institute of Health (NIH) has issued an urgent nationwide advisory following a sharp rise in seasonal influenza cases caused by Influenza A (H3N2) Subclade K, commonly referred to as the “Super Flu.”
Health officials report a surge in flu-related hospital visits across Karachi, Lahore, Islamabad, and other major cities, raising concerns as winter intensifies.
340,000+ Suspected Influenza Cases Reported
According to NIH surveillance data, approximately 340,856 suspected Influenza-Like Illness (ILI) cases have been recorded nationwide in the past month. Laboratory testing confirms that about 12% of samples are positive for Influenza A (H3N2).
Experts say the increase is seasonal but spreading faster than usual.
What Is H3N2 Subclade K?
The current outbreak is linked to H3N2 Subclade K, a genetically “drifted” influenza strain.
- Highly contagious, spreading faster than previous seasonal flu variants
- No evidence of increased severity, according to NIH and Aga Khan University experts
- Symptoms are stronger and longer-lasting than the common cold
Symptoms of Super Flu (H3N2)
Common symptoms include:
- Sudden high fever
- Severe fatigue and body aches
- Persistent dry cough
- Headache and sore throat
- Illness lasting 7–14 days
High-Risk Groups
NIH warns that complications such as pneumonia are more likely in:
- Children under 5
- Adults over 65
- Pregnant women
- Patients with asthma, diabetes, or heart disease
NIH Prevention Advisory
- Get the seasonal influenza vaccine
- Wear masks in crowded places
- Wash hands frequently
- Avoid antibiotics without medical advice
- Stay home if flu symptoms appear
“This is a seasonal surge, not a pandemic threat. Awareness and prevention are key,” an NIH official stated.
Citizens are urged to follow official health advisories and seek medical care if symptoms worsen.
