The Nipah virus is particularly deadly and has spread following transmission from animals.
On July 12, a new deadly Nipah virus infection was confirmed in a 52-year-old man in the Palakkad district of Kerala, marking the tenth instance of Nipah virus spillover (transmission of the pathogen from animals to humans) in the southern Indian state since 2018.
This year alone, Kerala has reported four Nipah cases, including two deaths, all within a 50km (30-mile) radius, on the border of the Malappuram and Palakkad districts.
The state remains on high alert, with 675 people under surveillance across five districts.
Here is what we know about the Nipah virus, its symptoms and how authorities are containing it.
