Stebin, 28, who was admitted to a private hospital in Kalpetta for a nose surgery, reportedly died after receiving anesthesia.
Those seeking treatment will be specifically asked whether they have come in contact with anyone returning from China, officials said.
The government now says the persistence of endosulfan in the environment cannot be more than six years. The aerial spraying of the pesticide was stopped on October 25, 2005.
The medicos are boycotting all hospital services, including emergency services till 8am on Thursday.
The department said symptoms such as fever, headache, body pain, joint pain, and red eyes should be taken seriously. It urged the public to promptly inform healthcare workers if they notice these symptoms.
According to reports, the dog which showed symptoms of rabies infection attacked other people in the area.
The incubation period of the virus is three to 14 days and severe disease and deaths are rare, said District Medical Officer
The departmental inquiry revealed that there were serious lapses on the part of the principal in discharging his duties.
Around 55 people, including judicial officers, court staff and lawyers developed symptoms like uneasiness, fever and itching over the past 10 days.
ICMR has detected the presence of Nipah virus in bats in Sulthan Bathery and Mananthavady.