How many doses of MMR vaccine should Hugh receive if he has no evidence of immunity?

Hugh should receive two doses of the MMR (measles, mumps, rubella) vaccine because the standard immunization schedule for MMR recommends two doses for individuals with no evidence of immunity. The first dose provides initial protection, while the second dose, administered at least 28 days after the first, boosts immunity and ensures higher effectiveness.

The rationale behind this two-dose schedule is based on the need for a robust immune response to ensure long-term protection against these three serious diseases. Measles, in particular, is highly contagious, and mumps and rubella can still result in significant morbidity, making effective vaccination critical.

Individuals who lack evidence of immunity, such as those who have not been vaccinated previously or do not have a history of these diseases, are at risk. Thus, by following the recommendation for two doses, healthcare providers can help ensure that patients like Hugh have adequate protection against measles, mumps, and rubella.