2.2. Data Collection

A standardized form was used, to collect information from patients suspected of leptospirosis. Information regarding demographic details (age, sex), clinical features (fever, onset day, chills, malaise, myalgia, arthralgia, retro orbital pain, headache, anorexia, nausea, vomiting, abdominal pain, bleeding jaundice, and meningitis), animal or water contact/exposure, and occupation was obtained. Any suspected patient who has been handling farm animals like cows and buffaloes or handling pet dogs or playing with them was considered to have an animal contact. Similarly any suspected patient who has been swimming/bathing, washing clothes, and fishing in the river or working in water logged field was considered to have water contact.