Step 1: The image relates to Japanese encephalitis (JE), an infection of the brain caused by the Japanese encephalitis virus (JEV).
Step 2: JEV is spread by mosquitoes, specifically those of the Culex type. Pigs and wild birds act as the reservoir hosts that maintain the virus in nature.
Step 3: Symptoms may include headache, vomiting, fever, confusion and seizures, reflecting brain involvement.
Step 4: Malaria is a protozoal Anopheles-borne febrile illness, plague is caused by Yersinia pestis via rat fleas, and Paragonimus is a lung fluke; none fit the mosquito-borne encephalitis depicted here. Hence the answer is Japanese encephalitis.