Researchers in Thailand have identified strains of the Nipah virus circulating among fruit bat populations, according to newly released scientific findings that expand understanding of zoonotic disease reservoirs in the country.

The detection was made through field sampling and laboratory analysis of bats, which are recognised as the natural hosts of the virus.

The study found that several genetic strains of the Nipah virus are present in fruit bats across different regions of Thailand.

The virus was detected in bats without signs of illness, consistent with previous evidence that fruit bats can carry Nipah virus asymptomatically.

The findings indicate continued viral circulation in wildlife rather than evidence of active transmission to humans.

Thai health and veterinary authorities said the results reinforce the importance of ongoing surveillance at the human–animal interface, particularly in rural and agricultural areas where people, livestock and wildlife may come into close contact.

Monitoring programmes have been in place for years to detect emerging infectious diseases early and to reduce the risk of spillover events.

Nipah virus is classified as a highly pathogenic virus due to its potential to cause severe disease in humans, including encephalitis and respiratory illness, with outbreaks previously reported in parts of South and Southeast Asia.

In Thailand, no human outbreaks linked to the newly identified bat strains have been reported, and officials emphasised that there is no immediate public health emergency.

Authorities reiterated existing guidance advising the public to avoid direct contact with bats, bat saliva or partially eaten fruit, and to follow food safety and hygiene practices.

The findings are being shared with regional and international health partners as part of broader efforts to track and manage emerging infectious diseases.