Health officials in the south Indian state of Kerala say nine people have died in confirmed and suspected cases of the deadly Nipah virus.
Three victims have tested positive for the virus in the past fortnight. The results from the remaining six samples will be available later on Monday.
Twenty-five others have been hospitalised with symptoms of the infection in Kozhikode, officials said.
Nipah is an infection which can be transmitted to humans from animals.
There is no vaccination for the virus which has a mortality rate of 70%.
What is Nipah virus?
Nipah virus (NiV) infection is a newly emerging disease which can be transmitted to humans from animals. The natural host of the virus are fruit bats
The infection was first identified in 1999 during an outbreak of encephalitis and respiratory illness among pig farmers and people with close contact with pigs in Malaysia and Singapore
Nearly 300 human cases with over 100 deaths were reported in that outbreak. In order to stop it, more than a million pigs were euthanized, causing tremendous trade loss for Malaysia
Nipah virus infection can be prevented by avoiding exposure to sick pigs and bats in endemic areas and not drinking raw date palm sap
Symptom of the infection include fever, headache, drowsiness, respiratory illness, disorientation and mental confusion. These signs and symptoms can progress to coma within 24-48 hours
There is no vaccine for either humans or animals
(Source: WHO, Centers for Disease Control and Prevention)