Why do we need a new flu shot every year?

Influenza viruses constantly change their genetic makeup, requiring yearly updates to flu vaccines to match the circulating strains and provide effective protection.

What is a universal flu vaccine?

A universal flu vaccine is an experimental vaccine designed to offer broader and more durable protection against multiple strains of influenza, potentially lasting longer than a single season.

What are the benefits of universal flu vaccines?

Universal flu vaccines aim to provide better, broader, and more durable protection, potentially covering more strains or lasting longer, reducing the need for annual vaccinations.

Home / Health / New Universal Flu Shot Could End Yearly Needles

New Universal Flu Shot Could End Yearly Needles

2 Mar

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Summary

Scientists are developing universal flu vaccines for broader protection.
Current flu shots are updated annually and are less than 60% effective.
New vaccines aim to last longer and cover multiple flu strains.

New Universal Flu Shot Could End Yearly Needles

Influenza remains a significant global health concern, infecting roughly a billion people annually and causing hundreds of thousands of deaths each year. The virus's ability to constantly mutate necessitates yearly updates to current flu vaccines, which often have effectiveness rates below 60% and can be a poor match for circulating strains.

However, scientists are exploring the development of 'universal' flu vaccines. These innovative vaccines are designed to provide more comprehensive and longer-lasting immunity. The primary objectives are to broaden protection across multiple flu strains and to extend the vaccine's efficacy over several years, potentially negating the need for seasonal immunizations.

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