India, Feb. 1 -- World Health Organisation (WHO) director general Tedros Adhanom Ghebreyesus on Saturday warned that cases of Nipah virus are rare but also serious. The global health body head also said that cases linked to the Nipah virus outbreak were limited to India and were not reported by any other country.

"The two case of Nipah virus infection reported by India in West Bengal are the third in this state since the virus was first identified in 1998," Ghebreyesus worte in a post on X. He also said that authorities in India were following over 190 contacts, and none have developed the disease so far.

"Authorities have increased disease surveillance and testing, implemented prevention and control measures in health care settings, an...