A door-to-door survey is being conducted in Tauru block of Nuh, India after four children died from encephalitis symptoms. Other people in the area have also been experiencing symptoms such as fever, muscle weakness, and seizures. The cause of death is currently being investigated, and blood samples have been sent for testing. Health officials are urging people to maintain hygiene and prevent contact until the exact pathogen and mode of spread are identified. Encephalitis can be highly communicable, but it is unclear if it is spreading from person to person in this case.