Flu shots provide a positive externality. Suppose that the market for vaccinations is perfectly competitive. Without government intervention in the vaccination market, All of the above are correct.
A vaccination is a sort of medication that prepares the immune system of the body to combat a disease it has never encountered before. Instead of treating a disease once it has been contracted, vaccines are intended to prevent it. The administration of a vaccine aids in the immune system's development of disease immunity. A microbe or virus in a weakened, living, or deceased state, as well as proteins or toxins from the organism, are all components of vaccines. They aid in preventing illness from an infectious disease by boosting the body's adaptive immunity. Herd immunity occurs when a sufficient proportion of a population has received a vaccination.
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