Which of the following is a contraindication for the administration of live vaccines?
Correct Answer: B
Rationale: The correct answer is B: Previous allergic reaction to the vaccine. This is a contraindication for live vaccines because individuals with a history of allergic reactions to a specific vaccine are at a higher risk of developing severe allergic reactions upon re-administration. It is crucial to avoid administering live vaccines to these individuals to prevent potential life-threatening complications.
Incorrect Choices:
A: Mild upper respiratory infection - This is not a contraindication for live vaccines as it is a mild and temporary condition that does not affect vaccine administration.
C: Current antibiotic therapy - This is not a contraindication for live vaccines as antibiotics do not interfere with live vaccine effectiveness.
D: Family history of allergies - While a family history of allergies may increase the risk of developing allergies, it is not a direct contraindication for live vaccines as long as the individual themselves does not have a history of allergic reactions to the specific vaccine.