H3N2 cases in Delhi: Doctor's tips on how to prevent viral fever, cough, covid-like signs

Symptoms of H3N2 influenza virus: Common symptoms include persistent coughs, sore throats, nasal congestion, body aches and extreme fatigue (Image: Pexels)

The H3N2 influenza virus is hitting Delhi-NCR hard. According to reports, flu-like cases have risen sharply in the capital region, with almost 69 percent of households now reporting at least one sick family member. It’s a sharp spike from 54 percent earlier this year, and public health experts are urging people to take the current wave seriously.

The culprit, H3N2, is a known subtype of the Influenza A virus — a strain that spreads rapidly, especially in crowded urban areas. “The virus moves easily from one person to another through droplets when someone coughs or sneezes,” explains Dr Arvind K Minz, Clinical Director of Internal Medicine at Marengo Asia Hospitals, Faridabad. “Touching infected surfaces and then your face without washing your hands is another common route,” he warns.

More than just a common cold

Also read | Lingering cough, occasional fever: All you must know about H3N2 flu sweeping through India

What starts as a chill and a fever can quickly turn into something far more unpleasant. In many patients, symptoms drag on — persistent coughs, sore throats, nasal congestion, body aches and extreme fatigue are common. “While most people recover within 5 to 7 days, we are seeing cases where coughing lingers for weeks, sometimes leading to complications,” says the expert.

In rare cases, nausea and vomiting may also occur. Those severely affected might struggle to breathe, a red flag that medical intervention is urgently needed. At-risk groups — children, elderly citizens, pregnant women and individuals with underlying health conditions — are particularly vulnerable. “It’s crucial they don’t delay seeking professional help,” Dr Minz adds.

Small habits can stop a big spread

Despite the alarming rise in numbers, experts believe the situation can be brought under control with responsible public behaviour. That starts with simple preventive measures: mask up in public spaces, wash your hands often, avoid touching your face unnecessarily and practise cough hygiene — like covering your mouth and nose with a tissue or your elbow.

“You’d be surprised how effective warm water, proper hydration and nutritious meals can be in strengthening your immune system. It’s old-school advice, but it still holds true,” he says.

Also read | Seasonal influenza: Everything you need to know about the viral infection

Don’t ignore prolonged symptoms

If the symptoms continue for more than a week, don’t dismiss it as a minor bug. “Early diagnosis could prevent the virus from taking a more serious turn. With such a high rate of household infection in Delhi-NCR, it's time for community awareness, vigilance, and timely medical care. This flu season, caution and care could make all the difference,” the expert says.

FAQs on H3N2 influenza virus

1. What is the H3N2 influenza virus?

The H3N2 influenza virus is a subtype of the Influenza A virus, which spreads rapidly, particularly in crowded urban areas.

2. How does H3N2 spread?

H3N2 spreads through droplets when someone coughs or sneezes and by touching contaminated surfaces and then your face without washing your hands.

3. What are common symptoms of H3N2?

Common symptoms include chills, fever, persistent cough, sore throat, nasal congestion, body aches, and extreme fatigue. In rare cases, nausea and vomiting may occur.

4. Who are at higher risk from H3N2?

Children, elderly citizens, pregnant women, and individuals with underlying health conditions are particularly vulnerable to severe effects of H3N2.

5. What preventive measures can help control the spread of H3N2?

Preventive measures include wearing masks in public spaces, washing hands frequently, avoiding touching your face unnecessarily, and practising cough hygiene. Additionally, maintaining hydration and a nutritious diet can strengthen your immune system.

Disclaimer: This article, including health and fitness advice, only provides generic information. Don’t treat it as a substitute for qualified medical opinion. Always consult a specialist for a specific health diagnosis.