HYDERABAD: The risk of the deadly Nipah virus spreading from India is low, the World Health Organization said on Friday, adding that it does not recommend any travel or trade restrictions after the South Asian nation reported two cases of the virus infection.

Several Asian countries have introduced screening measures for arrivals from India, as New Delhi seeks to dampen alarm.

Highly contagious virus, which spreads from animals to humans, has a high fatality rate and there is no vaccine