H3N2 flu cases rise worldwide: Top US Cardiologist explains how to protect yourself this flu season

Doctors recommend hand hygiene, vaccination and healthy routines to reduce flu risk during peak season. (Pic credit: Pexels)

• Mutated influenza A H3N2 cases rise globally, causing 1900 US deaths this season.
• CDC urges vaccination and preventive habits to lower flu risk and severity
• Hand hygiene, sleep, nutrition, and supplements help boost immunity against flu

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The number of cases involving a mutated form of influenza A, H3N2 subclade K, is going up worldwide. The US has seen almost 1,900 flu-related deaths this season, based on figures from the US Centres for Disease Control and Prevention (CDC). Health experts point out that this contagious variant is spreading, helped by more travel and holiday get-togethers.

While the CDC continues to recommend vaccination as the primary defence against influenza, doctors stress that additional preventive measures are equally important in reducing the risk of infection and complications.

US-based cardiologist Dr Jeremy London recently shared practical steps people can follow to protect themselves during the cold and flu season.

Also Read: H3N2 flu surge in India: What Indian families need to know; Symptoms, home remedies and when to see a doctor

1. Wash your hands frequently

Dr London emphasises regular hand hygiene using soap and water or alcohol-based sanitisers, especially after being in public spaces. Respiratory viruses enter the body through the eyes, nose and mouth, so clean hands serve as a key first defense.

2. Get vaccinated

The flu shot remains an important preventive tool. Dr London points out that while vaccines can't stop infections, they lower the risk of serious illness, hospital stays and other problems.

3. Strengthen the basics of health

Sleep, nutrition and physical activity are what Dr London calls the “major levers” of immunity. Sleep, a good diet and working out help the body fight infections better and boost overall immune strength.

4. Think about taking supportive supplements

Dr London points out that vitamin D, vitamin C and zinc are important supplements that can boost immune function. But he makes it clear that no one supplement can stop flu, and they work best alongside healthy habits.

Also Read: ‘Super flu’ spreads across US, UK and Canada: What is H3N2 subclade K strain and why it is spreading faster

Experts repeat that while there's no certain way to dodge the flu, getting ready, getting vaccinated and sticking to good habits can cut down the chance of getting sick and how bad it is if you do

during peak flu season.

FAQs on preventive steps during flu season

How can I reduce my risk of getting the flu?

Frequent hand washing, vaccination, maintaining good health through sleep, nutrition, and exercise, and considering supportive supplements like vitamin D, vitamin C, and zinc can help reduce your risk.

Is vaccination necessary every year?

Yes, the flu vaccine is updated annually to combat the most prevalent strains, so it is important to get vaccinated each year.

Can supplements prevent the flu?

While supplements like vitamin D, vitamin C, and zinc can boost immune function, they are most effective when used alongside healthy habits and cannot prevent the flu on their own.

What are the key areas to focus on for overall health during flu season?

Focus on sleep, nutrition, and physical activity as these are major factors in maintaining a strong 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 specific health diagnosis.