Flu vaccine: What is the update on influenza vaccine this year by the American Heart Association

The flu season is not just about fever, cough, or missing a few days of work. For many, especially older adults and those with underlying conditions, it can turn into a life-threatening illness.

The flu vaccine is spoken about in simple terms, “it prevents flu.” But the real story is something else. Here’s everything we need to know about flu vaccines..

Why heart patients and stroke survivors need it the most

As per American Heart Association, Half of all adults hospitalised for flu in recent seasons had heart disease. This shows that influenza doesn’t just affect the lungs; it also puts pressure on the heart and circulatory system. For people already living with heart disease or a history of stroke, the immune system is more vulnerable.

A flu shot reduces the severity of illness, lowers the chances of hospitalisation, and most importantly, reduces the risk of fatal complications.

It is less about avoiding the flu entirely and more about avoiding the dangerous aftermath.

Why age changes the equation

According to the US CDC, Between 70% and 85% of flu-related deaths and up to 70% of hospitalisations occur in people aged 65 and older. Age naturally weakens the immune system, making seniors less capable of fighting infections.

For this reason, a high-dose flu vaccine has been developed specifically for older adults. Even when a high-dose vaccine isn’t available, a regular flu shot still offers significant protection. The key is timely vaccination, which helps build immunity before flu activity peaks.

Children and the updated recommendations

The flu vaccine is recommended for everyone aged 6 months and older. This is a major shift from earlier guidelines, where only children above 2 years were covered.

Babies and young children can spread flu quickly within households and schools. Protecting them also indirectly protects grandparents and other high-risk family members. For parents, this becomes a way of safeguarding the entire household, not just the child.

Timing is everything

September and October are the best months to get vaccinated. The flu season peaks in late fall and winter. Taking the vaccine by the end of October ensures the body has enough time to build antibodies.

However, late vaccination is still better than none, as flu activity often continues well into spring. The idea is simple: whenever possible, protect the body before the virus spreads widely.

What happens if flu strikes despite the vaccine?

People can still get the flu even after being vaccinated, but it is less severe. The vaccine doesn’t guarantee 100% immunity, but it makes the illness more manageable. Prescription antiviral drugs, when started within the first two days of symptoms, can further reduce severity and recovery time. Think of the vaccine as a strong shield, it may not block every attack, but it ensures the body doesn’t collapse under the impact.Disclaimer: This article is based on facts and recommendations provided by the American Heart Association. It is intended for informational purposes only and should not replace medical advice. For individual concerns, always consult a qualified healthcare professional.