Cowpox to the mild form of smallpox and the observation that dairy farmers were immune from smallpox inspired the first smallpox vaccine, created and administered by English physician Edward Jenner. The word “vaccination,” coined by Jenner in 1796, is derived from the Latin root "vaccinus", meaning of or from the cow. Once vaccinated, a patient develops antibodies that make them immune to cowpox, but they also develop immunity to the smallpox virus, or "Variola virus". The cowpox vaccinations and later incarnations proved so successful that in 1980, the World Health Organization announced that smallpox was the first disease to be eradicated
Paris under Napoleon Beauharnais, the mother of Napoleon III, who both survived; it killed the poet Jean François de Saint-Lambert, and writers Laharpe and Maréchal. Napoleon created a Health Council under the Prefect of Police to monitor the safety of the water supply, food products, and the environmental effects of new factories and workshops. The committee also made the first systematic surveys of health conditions in Paris neighborhoods, and provided the first widespread vaccinations against smallpox. Napoleon also made efforts to improve the health of the city, by building a canal to provide fresh water and by constructing sewers under the streets that