Correct Answer: B

Rationale: A previous allergic reaction to the vaccine is a contraindication for the administration of live vaccines. This is because individuals who have had a previous allergic reaction to a vaccine are at higher risk of developing a severe allergic reaction with subsequent doses. It is crucial to identify and avoid administering live vaccines to individuals with a history of allergic reactions to prevent potential adverse events.

Correct Answer: B

Rationale: The correct benefit of providing Vitamin A supplements to children is reducing the risk of severe measles. Vitamin A supplementation is known to lower the risk of severe measles and its associated complications, making it an important intervention in regions where measles is prevalent.

Correct Answer: B

Rationale: The recommended time for introducing solid foods into an infant's diet is around 6 months of age. Introducing solids too early can increase the risk of food allergies and digestive issues, while waiting too long may lead to nutritional deficiencies. By around 6 months, most infants have the necessary physical and developmental skills to start eating solid foods alongside breast milk or formula.

Correct Answer: B

Rationale: The Global Immunization Vision and Strategy (GIVS) aims to improve access to high-quality immunization services globally. This objective focuses on enhancing the availability and quality of immunization services to ensure that more individuals have access to vaccines to prevent diseases.

Correct Answer: C

Rationale: Secondary prevention focuses on early detection and intervention to prevent the progression of diseases. Screening for hypertension falls under secondary prevention as it aims to identify the condition early, allowing for timely management and prevention of complications.