Indian media have reported cases of Nipah virus infection in the state of West Bengal, prompting health authorities to place more than 110 individuals who had contact with infected patients under precautionary quarantine. The Times of India reported today (Wednesday, January 8) that earlier this month, five healthcare workers in West Bengal were infected with the Nipah virus, with one reported to be in critical condition. Around 110 people who had contact with these patients have been quarantined. The report states: “Officials said surveillance and precautionary measures have been intensified, and the situation is being continuously monitored to prevent further spread of the virus.”What is the Nipah virus and what are its symptoms? According to the World Health Organization (WHO), the Nipah virus is a rare but dangerous virus that can cause severe illness in both humans and animals.