Surveillance every Fortnight is according to which malaria programme –
**Core Concept**
The question is testing knowledge of the Integrated Disease Surveillance Project (IDSP) and the National Vector Borne Disease Control Programme (NVBDCP) guidelines for malaria surveillance in India. The IDSP is a national program aimed at strengthening the country's capacity to detect and respond to public health emergencies.
**Why the Correct Answer is Right**
Surveillance every fortnight is recommended for malaria under the NVBDCP guidelines. This interval is chosen to ensure prompt detection of malaria cases and to enable timely implementation of control measures. The fortnightly surveillance is crucial for monitoring the malaria situation and for identifying areas that require intensified control efforts.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not specify the correct interval for malaria surveillance.
**Option B:** This option is incorrect as it is not relevant to the NVBDCP guidelines for malaria surveillance.
**Clinical Pearl / High-Yield Fact**
It is essential to note that the surveillance interval may vary depending on the region, season, and malaria transmission intensity. The NVBDCP guidelines recommend adjusting the surveillance interval based on the local epidemiological situation to ensure effective malaria control.
**Correct Answer: D.**