
The risk of the deadly Nipah virus spreading beyond India is low, the World Health Organization has said. Hong Kong, Malaysia, Singapore, Thailand and Vietnam are among Asian countries that this week increased screening at airports to guard against the spread of the virus after India confirmed two infections.
"WHO considers the risk of further spread of infections from these two cases to be low," the agency said, adding that India has the capacity to contain such outbreaks.
"There is no evidence yet of increased human-to-human transmission," she said, stressing that she was coordinating with Indian health authorities.
But it did not rule out further exposure to the virus, which is circulating in bat populations in parts of India and neighboring Bangladesh.
The virus, which is spread mainly by fruit bats and animals such as pigs, can cause fever and brain inflammation.
It has a mortality rate of 40% to 75% and there is no cure, although vaccines in development are in the testing phase. It is transmitted to humans by infected bats or by the fruit they infect, but human-to-human transmission is not easy, as it usually requires prolonged contact with infected people.