LONDON, Jan 11: Countries should consider recommending that passengers wear masks on long-haul flights, given the rapid spread of the latest Omicron subvariant of COVID-19 in the United States, World Health Organization (WHO) officials said on Tuesday.

KATHMANDU, Sept 14: Experts have warned that Nepal is also at a high risk of the Nipah virus infection. According to Dr Sher Bahadur Pun, coordinator of Shukraraj Tropical and Infectious Diseases Hospital’s Research Branch, a species of the bat that spreads the Nipah virus is found in Nepal.