In einer amischen Gemeinde in Minnesota gab es 2005 vier Fälle, und viele andere wurden in den vergangenen Jahren unter anderem in Angola, Nigeria, Uganda, Kenia, Benin, Indien, Somalia, Pakistan, Sudan registriert.
Four cases were reported in an Amish community in Minnesota in 2005, and many others have been reported in recent years in Angola, Nigeria, Uganda, Kenya, Benin, India, Nigeria, Somalia, Pakistan, Sudan, and elsewhere.