Issue No. 535 — Understanding Nipah Virus

9342026-02-03

Recently, cases of Nipah virus infection have been reported in West Bengal, eastern India. The source of infection is still under epidemiological investigation, and there is currently no evidence of sustained community transmission.

Nipah virus has low efficiency of human-to-human transmission. To date, there have been no cases exported from affected areas to other countries, and the risk of causing a cross-border outbreak is assessed to be low.

Taiwan’s Centers for Disease Control (CDC) has listed Nipah virus infection as a “priority surveillance disease” since 2018 to strengthen case monitoring. So far, there have been no confirmed human or animal cases in Taiwan.

In light of increasing exchanges between Taiwan and South Asia, including India, the CDC announced on January 16 that Nipah virus infection will be classified as a Category V notifiable infectious disease, with official inclusion expected in mid-March. This measure will help enhance early warning systems, improve outbreak response speed, and reduce potential threats to public health.

The public is reminded that if returning from areas with Nipah virus activity (including Bangladesh, Kerala State in India, and West Bengal), they should monitor their health closely. If feeling unwell and seeking medical care, be sure to inform healthcare providers of recent travel history.