Which of the following is an example of a vector-borne disease?

Correct Answer: C

Rationale: The correct answer is C: Malaria. Malaria is an example of a vector-borne disease because it is transmitted to humans through the bite of an infected mosquito. The mosquito acts as a vector, carrying and transmitting the infectious agent (Plasmodium parasite) from one host to another. Measles (A), Tuberculosis (B), and Hepatitis B (D) are not vector-borne diseases. Measles is transmitted through respiratory droplets, Tuberculosis through airborne particles, and Hepatitis B through contact with infected blood or body fluids.

Correct Answer: B

Rationale: The correct answer is B: To illustrate the age and sex composition of a population. Population pyramids graphically represent the age and gender structure of a population, showing the distribution of different age groups and genders within a population at a specific point in time. This information is crucial for policymakers and demographers to understand population dynamics, such as birth rates, life expectancy, and potential workforce size. Choice A (To show the distribution of income levels) is incorrect because income levels are not typically depicted in a population pyramid. Choice C (To compare the incidence of diseases) is incorrect because population pyramids do not provide information on disease prevalence. Choice D (To display the literacy rates) is incorrect as literacy rates are also not typically included in population pyramids.

Correct Answer: D

Rationale: The correct answer is D: Focusing solely on curative care. The Maternal and Child Health (MCH) program aims to prevent illness and promote health in pregnant women, mothers, infants, and children. Focusing solely on curative care does not align with the preventive and promotive goals of the MCH program. Reducing infant mortality, improving maternal health, and providing family planning services are integral components of the MCH program that aim to enhance the overall well-being of mothers and children. By emphasizing prevention and health promotion, the MCH program aims to address the root causes of health issues rather than solely focusing on treating illnesses after they occur.

Correct Answer: B

Rationale: The correct answer is B: 6 months. Exclusive breastfeeding is recommended by WHO for the first 6 months of a baby's life. This is because breast milk provides all the essential nutrients and antibodies needed for a baby's optimal growth and development during this critical period. Introducing other foods or liquids before 6 months can increase the risk of infections and allergies in infants. Choices A, C, and D are incorrect because they do not align with the WHO guidelines for exclusive breastfeeding duration.

Correct Answer: B

Rationale: The correct answer is B: Nutritional counseling. Prenatal care focuses on ensuring the health of both the mother and the developing baby. Proper nutrition is essential for the well-being of both, as it supports the baby's growth and development and helps prevent complications for the mother. Nutritional counseling provides guidance on maintaining a balanced diet, taking necessary supplements, and managing any dietary restrictions during pregnancy. Routine immunizations (A) are important but not typically a primary component of prenatal care. Surgical interventions (C) and radiologic exams (D) are generally avoided during pregnancy unless absolutely necessary due to potential risks to the fetus. Therefore, B is the most essential component for prenatal care.