Martha Lillard, last known US polio survivor using iron lung, dies aged 78

Lillard, of Oklahoma, contracted polio when she was five and slept inside cylindrical metal device to help her breatheThe last known US person living with polio and relying on an iron lung has died aged 78.Martha Lillard, who contracted polio… Lillard, of Oklahoma, contracted polio when she was five and slept inside cylindrical metal device to help her breatheThe last known US person living with polio and relying on an iron lung has died aged 78.Martha Lillard, who contracted polio…