Singapore authorities have announced plans to increase health screening measures at Changi Airport following a Nipah virus outbreak in West Bengal, India. This includes implementing temperature checks for flights arriving from affected areas. Travelers entering Singapore will receive health advisories, urging them to seek medical help if they feel unwell post-travel, while outbound travelers will be provided with health precaution guidelines. The Communicable Diseases Agency stated that the Ministry of Manpower will intensify monitoring of newly arrived migrant workers from South Asia.
The Nipah virus is primarily transmitted through exposure to bats or the consumption of date palm sap or fruits contaminated by bats. Despite ongoing bio-surveillance efforts monitoring Singapore’s bat populations since 2011, no traces of the virus have been detected. Nipah virus, a zoonotic virus that can be transmitted from animals to humans, can also spread through contaminated food or direct human-to-human contact. In infected individuals, it can lead to a range of illnesses, from asymptomatic infection to severe respiratory problems and fatal encephalitis.
Originating in Malaysia in 1999 during an outbreak among pig farmers, Nipah virus has not seen any new outbreaks in Malaysia since then. The virus was later identified in Bangladesh in 2001, with nearly annual outbreaks occurring since. Periodic cases have also been reported in eastern India. Symptoms in infected individuals typically start with fever, headaches, muscle pain, vomiting, and sore throat, progressing to neurological signs indicating acute encephalitis in severe cases. Some may also experience atypical pneumonia and acute respiratory distress, with progression to coma within 24 to 48 hours in severe instances.
