12 Sep 2025 : Health authorities in Delhi have issued an alert over rising cases of H3N2 influenza, a seasonal flu strain causing increased hospital visits across the city. The alert comes amid reports of a sudden surge in patients presenting with severe flu-like symptoms, leading to concerns about community spread and preparedness.
What is H3N2 Influenza?
H3N2 is a subtype of the Influenza A virus that tends to be more severe than the common flu, particularly affecting children, the elderly, and those with weakened immune systems. Unlike regular flu, H3N2 is known for higher rates of complications, including pneumonia and hospitalization.
Symptoms to Watch Out For
Doctors recommend being alert to the following symptoms:
- High Fever (sudden onset)
- Severe Cough and chest discomfort
- Sore Throat and nasal congestion
- Body Aches and fatigue
- Headache and chills
- In some cases, shortness of breath and wheezing
Symptoms typically last 5–7 days, though cough and weakness may persist for up to two weeks in some patients.
Who is at Risk?
Health experts warn that certain groups are more vulnerable:
- Children under 5
- Elderly adults over 60
- Pregnant women
- People with chronic conditions like diabetes, heart disease, or asthma
Recovery and Treatment
Most H3N2 cases can be managed at home with adequate rest, hydration, and fever control medicines (paracetamol). Antiviral medications may be prescribed in severe cases or for high-risk groups. Doctors advise patients not to self-medicate with antibiotics, as the infection is viral.
Prevention Measures
Authorities have urged citizens to take preventive steps to avoid further spread:
- Wear masks in crowded areas
- Maintain hand hygiene with soap or sanitizers
- Cover mouth and nose while coughing or sneezing
- Avoid close contact with sick individuals
- Get an annual flu vaccine, especially for children, elderly, and immunocompromised individuals
Government Advisory
Delhi’s health department has strengthened surveillance and instructed hospitals to allocate dedicated flu wards if required. Schools have been advised to report clusters of absenteeism and encourage parents to keep symptomatic children at home.
Public health expert Dr. Meera Sharma said:
“While H3N2 is not new, its intensity this season is slightly higher. Early diagnosis and home isolation are key to preventing large-scale transmission.”
Authorities expect cases to peak over the next two weeks, urging people not to panic but to remain vigilant.
Summary:
Delhi issues H3N2 flu alert as cases rise. Experts urge early diagnosis, home isolation, masks, and flu vaccination to prevent complications and protect vulnerable groups like children, elderly, and immunocompromised patients.