The two 13 year-old boys in this photo were both exposed to the same smallpox source on the same day at school.
The two 13 year-old boys in this photo were both exposed to the same smallpox source on the same day at school. The one on the right received the small pox vaccine at birth, and the other didn’t. This photo was taken by Dr. Allan Warner in the early 1900s at Isolation Hospital at Leicester in the UK. In 1796, English physician and scientist, Edward Jenner, developed the smallpox vaccine, the world's first vaccine. 184 years later, in 1980, the World Health Organization certified smallpox disease as globally eradicated. A black and white photo posted on Facebook shows two young boys, one with lesions across his face, chest and arms, the other apparently healthy. “Two boys, who were exposed to the exact same source of smallpox, were photographed side by side, in order to effectively convey their juxtaposed results,” the caption reads. “The boy on the right was vaccinated, the boy on the left was not, early 1900s.” The post has been viewed more than 196,000 times so far...