History & Education of Health Care, Health Care Facilities, Agencies & Insurances Practice Test

This question tests the origin of vaccination for smallpox. Edward Jenner is the figure who linked a milder animal disease—cowpox—to protection against smallpox and pioneered the vaccination practice in 1796. He observed that milkmaids who had contracted cowpox seemed immune to smallpox, then tested this by inoculating a boy with cowpox and later exposing him to smallpox, which protected him. This work gave us the term vaccination, from vacca, meaning cow, and laid the foundation for modern immunization, ultimately contributing to the global eradication of smallpox. The other figures are notable for different medical advances: Pasteur advanced germ theory and developed vaccines for other diseases; Semmelweis promoted handwashing to prevent puerperal fever; Salk created a vaccine for polio.