True statement regarding Japanese Encephalitis is
**Core Concept**
Japanese Encephalitis (JE) is a mosquito-borne viral encephalitis caused by the Japanese Encephalitis virus (JEV), a flavivirus endemic to many parts of Asia. The virus is primarily transmitted through the bite of infected Culex mosquitoes.
**Why the Correct Answer is Right**
The JEV is maintained in a cycle between mosquitoes and certain species of birds, such as ducks and herons. The virus is transmitted to humans through the bite of infected mosquitoes, particularly during peak transmission seasons. The incubation period of JE ranges from 5 to 15 days, after which it can cause severe inflammation of the brain, leading to symptoms such as fever, headache, and seizures.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to Japanese Encephalitis.
**Option B:** This option is incorrect as Japanese Encephalitis is not primarily transmitted through ticks.
**Option D:** This option is incorrect as Japanese Encephalitis is not caused by a bacterium.
**Clinical Pearl / High-Yield Fact**
The risk of Japanese Encephalitis is higher in rural areas with poor sanitation and inadequate mosquito control measures. It is essential for travelers to take preventive measures, such as wearing protective clothing and applying insect repellents, to reduce the risk of JE.
**Correct Answer:** Not provided. Please provide the correct answer options (A, B, C, D) to complete the explanation.