🧬 H3N2 Influenza Virus: Understanding the New Seasonal Flu Threat
- The SKNH

- Jun 12
- 2 min read

🌡️ What is H3N2 Influenza?
H3N2 is a subtype of the Influenza A virus, and one of the main viruses causing seasonal flu outbreaks in humans. While flu is a common viral illness, the H3N2 strain is known to be more aggressive, especially in the elderly, children, and people with respiratory illnesses.
In the past year, India has seen a spike in H3N2 cases, leading to more hospitalizations compared to the typical flu season.
📰 Why is H3N2 in the News?
In early 2024 and again in 2025, several Indian states — including West Bengal, Maharashtra, Delhi, and Karnataka — reported a surge in H3N2 cases, prompting advisories from the Indian Council of Medical Research (ICMR).
Unlike regular flu, H3N2 tends to cause prolonged symptoms, a higher rate of bronchitis or pneumonia, and can lead to serious complications in chronic patients.
🔍 Common Symptoms of H3N2 Flu
Symptom | Description |
Persistent High Fever | Often lasts 3–5 days |
Severe Cough | Can linger for weeks |
Chills & Body Aches | Intense discomfort across the body |
Shortness of Breath | Especially in patients with asthma/COPD |
Nasal Congestion | With or without runny nose |
Weakness & Fatigue | May persist even after recovery |
🛑 Note: Some patients may develop secondary bacterial infections such as pneumonia, especially if the virus is left untreated.
📊 Age Groups at Higher Risk
👶 Children under 5 years
👵 Seniors above 60
🤰 Pregnant women
🫁 People with chronic lung/heart disease
💊 Immunocompromised individuals
💉 Prevention & Vaccination
✅ What You Can Do:
Get the seasonal flu shot, which is updated annually to include H3N2
Wear a mask in crowded or indoor public places
Practice frequent hand washing with soap or alcohol-based sanitizers
Cover your mouth and nose when coughing or sneezing
Avoid self-medication with antibiotics — flu is viral
🏥 SKNH’s Influenza Care Services
At Sree Krishna Nursing Home (SKNH), we provide:
🧪 Rapid Influenza Testing (including H3N2 detection)
🩺 Outpatient & Inpatient Flu Management
💨 Oxygen therapy & nebulization for respiratory complications
💉 Annual flu vaccination drives
👨⚕️ Specialist care for senior citizens and children
📌 Visit SKNH for Expert Flu Treatment
Sree Krishna Nursing Home (SKNH) is fully prepared to deal with seasonal flu outbreaks and virus mutations like H3N2. We emphasize early detection, safe isolation, and personalized care.
📍 Address: Sree Krishna Nursing Home, Narayangarh, Paschim Medinipur, West Bengal – 721437
📞 Phone: 03229-258257 / +91 8327529897
🌐 Website: www.sknh.in
🗣️ A Word from SKNH
“H3N2 is not just another flu. Its severity demands attention, prevention, and timely treatment. Stay informed, get vaccinated, and reach out to SKNH if symptoms appear.”— Medical Team, SKNH












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