![A 1940s photograph of a child in an iron lung, used to treat polio patients that could not breathe on their own due to paralysis. | DPLA A 1940s photograph of a child in an iron lung, used to treat polio patients that could not breathe on their own due to paralysis. | DPLA](https://d2jf00asb0fe6y.cloudfront.net/no-cure-polio_09_c94df9d22daf4976aa5ee18e43967f44.jpg)
A 1940s photograph of a child in an iron lung, used to treat polio patients that could not breathe on their own due to paralysis. | DPLA
![Iron lung (c. 1933) used to "breathe" for polio patients until 1955 when polio vaccine became available is located in the Mobile Medical Museum, Mobile, Alabama | Library of Congress Iron lung (c. 1933) used to "breathe" for polio patients until 1955 when polio vaccine became available is located in the Mobile Medical Museum, Mobile, Alabama | Library of Congress](http://tile.loc.gov/image-services/iiif/service:pnp:highsm:05200:05216/full/pct:50/0/default.jpg)
Iron lung (c. 1933) used to "breathe" for polio patients until 1955 when polio vaccine became available is located in the Mobile Medical Museum, Mobile, Alabama | Library of Congress
The Public Health Interventions for Polio Were Restrictive, and So Were the Iron Lungs | History of Vaccines
![My experience with the iron lung, the negative pressure ventilators of the past | British Columbia Medical Journal My experience with the iron lung, the negative pressure ventilators of the past | British Columbia Medical Journal](https://bcmj.org/sites/default/files/styles/image_1050x460/public/Iron_lung_CDC.jpg?itok=M88PHho7)