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History of Vaccines: Smallpox

Last Updated: Oct 11, 2024 12:14 PM

The Threat of Smallpox and Early Treatments

"The most terrible minister of death." "The Speckled Monster." Smallpox was a lethal disease that haunted humankind from as early as 400 B.C.E. The disease produced a burning fever and pustules on its victim's skin. While survivors often ended up with scarring or even blindness, smallpox claimed the lives of about thirty percent of people infected.

Early efforts to curb the disease took the form of a treatment called variolation or inoculation. Variolation was an effort to expose patients to a mild case of smallpox often by taking scabs from someone infected with smallpox, powdering the scabs, and having the patient inhale the scabs through the nose or injected into the arm. The practice is mentioned as far back as the 15th century in China. By the 16th century, variolation was a common treatment in Africa, India, and the Ottoman Empire. Lady Mary Wortley Montagu was an early advocate for variolation in Britain after learning about the procedure in Constantinople. Variolation was introduced to the United States after Cotton Mather learned about it from his slave, Onesimus. Unfortunately, while variolation reduced the rate of infected dying of smallpox from around 30% to 2%, those treated by variolation could still spread the disease. 

 

A samurai general of Heian period confronting two gods of Smallpox.

Smallpox as represented in art and religion: Japanese print rendering Minamoto no Tametomo, a samurai general of Heian period, who punishes two gods of smallpox.

Source: The National Library of Medicine Image License: The National Library of Medicine believes this item to be in the public domain.


Sources: 

The College of Physicians of Philadelphia. (n.d.). History of Smallpox. Timeline | History of Vaccines. https://historyofvaccines.org/history/smallpox/timeline

National Institutes of Health, History of Medicine Division. (2013, July 30). Smallpox: A Great and Terrible Scourge. U.S. National Library of Medicine. https://www.nlm.nih.gov/exhibition/smallpox/index.html

Hsu,  Jennifer. "A Short History of Vaccines: Smallpox to Present." in The Story of Immunization. South Dakota Medicine Special Edition. The Journal of the South Dakota Medical Association.

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Creating a Vaccine and Eliminating Smallpox

One of the first known attempts to derive a vaccine for smallpox was in 1774 when a farmer, Benjamin Jesty, inoculated his family using a cowpox sore from one of his cows. However, Jesty did not publish his findings so his efforts were widely forgotten. A more well-known attempt to create a vaccine occurred in 1796 when Edward Jenner experimented with cowpox to see if he could provide protection to patients from smallpox. Jenner noticed that milkmaids who contracted the mild cowpox did not seem to catch the more deadly variant of smallpox. He inoculated an eight-year-old boy named James Phillips with matter taken from a cowpox sore of a milkmaid, Sarah Nelmes. Jenner was able to prove that exposure to cowpox provided protection from smallpox. Since this first vaccine used cowpox, the origin of the word vaccine comes from the Latin name of cowpox "Vaccinia" ("Vacca" is the Latin word for cow). 

Vaccination dramatically reduced the death toll from smallpox around the world. In 1967 the World Health Organization began an intensive eradication of smallpox program mainly aimed at countries in central Africa, Asia, and South America where smallpox was endemic. Throughout the 1970s more countries became "zero-pox" zones and in 1980 the WHO declared that smallpox had been eradicated from the world. 

Sources: 

The College of Physicians of Philadelphia. (n.d.). History of Smallpox. Timeline | History of Vaccines. https://historyofvaccines.org/history/smallpox/timeline

National Institutes of Health, History of Medicine Division. (2013, July 30). Smallpox: A Great and Terrible Scourge. U.S. National Library of Medicine. https://www.nlm.nih.gov/exhibition/smallpox

Hsu,  Jennifer. "A Short History of Vaccines: Smallpox to Present." in The Story of Immunization. South Dakota Medicine Special Edition. The Journal of the South Dakota Medical Association.

Anti-vaccine cartoon

Miniature cows sprout out of people who receive a vaccine.

Source: Library of Congress. Image License: No known restrictions on publication

Some people remained skeptical of Jenner's vaccine breakthrough. This anti-vaccine illustration from 1802 depicts cows sprouting from people they are inoculated using cox pox.