Tuberculosis was one of the wide-spreading diseases in New York City in the early nineteen hundreds. The Charity Organization Society, founded in 1882, was working to secure more favorable living conditions as well as raising the general standard of living. The organization made clear that the cause of the rapid spread of the disease was due to the tenements’ lack of light, poor plumbing and the minimal spaces that families were living in. Tuberculosis raged on in low income and poor neighborhoods because of their poor living conditions as well as lack of sanitary infrastructure. In 1910, the Charity Organization Society created a map depicting the spread of tuberculosis in New York City’s lower east side. Almost every building had one or multiple cases of tuberculosis represented by a pin on the map. The close proximity that the immigrants were living in made it possible for the disease to be that widespread.