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
To the Youth in Western Countries and the 2015 Beirut bombings. As of December 26, 2015, the letter has been translated to 62 languages in a collaborative effort conducted by The Representative of the Supreme Leader in the University of Mohaghegh Ardabili, Al-Mustafa International University graduates, the Ministry of Foreign Affairs, the IRIB World Service and the countries' respective embassies. In about two thousand words, Khamenei discussed the reasons for the worldwide wave of terrorism, calling it "our common worry". Among them he noted the impact that major Western powers had with their military operations in the Islamic world. He mentioned United States's alleged role in