The 114 commercial outbreaks in South Dakota have led to the death or intentional killing of more than 6 million turkeys, chickens and other birds.

In January, the first person in the US died from bird flu. Learn what the symptoms are and how you can stay safe

Here is a list of the types of mammals, other than humans, in which the virus - which has also infected hundreds of wild and captive bird species - has been detected between 2016