The retrovirus HIV frequently undergoes mutations, making it difficult for scientists to develop a single effective vaccine.When flu vaccines are administered, patients are told that they are only protected from one strain of the flu and are still as susceptible to other strains as unvaccinated people.Explain why.

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The Answer of The retrovirus HIV frequently undergoes mutations, making it difficult for scientists to develop a single effective vaccine.When flu vaccines are administered, patients are told that they are only protected from one strain of the flu and are still as susceptible to other strains as unvaccinated people.Explain why.

The Retrovirus HIV Frequently Undergoes Mutations, Making It Difficult for Scientists