In an area having annual parasite index of less than 2, the follow ing is to be done –
**Question:** In an area having annual parasite index of less than 2, the following is to be done -
A. Prophylactic treatment with antimalarial drugs
B. Increased education and awareness for the community regarding malaria prevention and control measures
C. Establishing a surveillance system for monitoring malaria cases
D. Conducting large-scale vector control measures
**Correct Answer:** D. Conducting large-scale vector control measures
**Core Concept:** In areas with an annual parasite index (API) of less than 2, controlling the vector population is crucial for malaria prevention and control.
**Why the Correct Answer is Right:** In areas with a low API ( 5), where the risk of infection is high. In low-risk areas, antimalarial drugs are less effective in reducing transmission.
B. Increased education and awareness (Option B) are important in all areas to promote preventive measures but do not directly address the primary cause of malaria transmission, which is the vector mosquitoes.
C. Establishing a surveillance system for monitoring malaria cases (Option C) is essential in all areas regardless of API but does not directly address the vector population, which is the primary driver of transmission.
**Why Option D is Right:** Option D focuses on controlling the vector population (mosquitoes), which directly addresses the cause of malaria transmission in low-risk areas with API <2. This approach reduces the number of vectors, decreasing the likelihood of malaria infection in the community. **Clinical Pearl:** In low-risk areas with API 5), where the risk of infection is high. In low-risk areas with API <2, antimalarial drugs are less effective in reducing transmission as the primary cause of malaria transmission (mosquitoes) remains unaffected. **Why Option B is Incorrect:** Increasing community education (Option B) is crucial in all areas to promote preventive measures like bed nets, indoor residual spraying, and personal protection. However, this option alone does not directly address the primary cause of malaria transmission, which is the vector