In the southern Indian state of Kerala, a 14-year-old boy died from an infection caused by Nipah virus which is considered one of the most dangerous pathogens circulating in the wild.
However, according to the Kerala Health Minister Veena George, the close relatives of the teenager had tested negative for the virus.
Previously, she said that 60 people had been identified as being in the high-risk category of having the disease.
First identified 25 years ago in Malaysia, the Nipah virus is transmitted to humans from animals such as fruit bats or pigs, and it is known to cause a lethal brain-swelling fever in humans.
The virus is estimated to have a case fatality rate as high as 75 percent and has been cited as having the potential to spark another pandemic.
Currently, there is no vaccine to prevent infection and no treatment to cure it.