And more than half have been reported during the last year.
Symptoms of bird flu typically include fever, aching muscles and cough or shortness of breath.
Other early symptoms may also include diarrhoea, stomach pain, vomiting, conjunctivitis and bleeding from the nose or gums
The WHO warned earlier this month more surveillance is “urgently needed” to better understand the threat posed by the H5N6 virus.
This is a breaking story. More to follow.