1. Increased Protection: Including multiple flu strains in a vaccine can provide broader protection against a variety of influenza viruses. This can help to reduce the likelihood of getting sick from different strains of the flu.
2. Cross-Protection: Some flu strains may be more closely related to others, which can provide cross-protection against similar strains that are not included in the vaccine.
3. Seasonal Coverage: As flu viruses can mutate and change over time, including multiple strains in a vaccine can help to better adapt to the circulating strains during a particular flu season.
4. Public Health Impact: By including multiple strains in a vaccine, the overall effectiveness can be improved, which can lead to reduced illness and hospitalizations, as well as lower healthcare costs and burden on healthcare systems.
5. Convenience: Including multiple strains in a single vaccine can reduce the need for separate vaccinations for each strain, making it more convenient for individuals to get vaccinated against the flu.
advntages of more than one flu strain in a vaccine
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