This chart shows how gonorrhea was spread among children who attended the same school. It highlights "perversion contact," school contact, and family contact.
"Outbreak of syphilis infections in a rural county : Monroe County, Tennessee"
This is an epidemiological chart that shows how one syphilis epidemic spread. This image was created earlier in the 1930s. Here it appears with a new heading.
This graphic highlights the important steps in controlling TB and syphilis. It is from a reprint of Parran's article in Survey Graphic on syphilis, TB, and African Americans.