The first influenza vaccine was developed by Dr. Thomas Francis Jr. and his team in 1945. They used a killed influenza virus to create the vaccine, which later
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History of Science



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How did edward jenner know that the smallpox vaccine would work?

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Edward Jenner observed that milkmaids who had contracted cowpox, VeeloBooster Test a less severe disease, seemed to be immune to smallpox. Based on this observation, Jenner condu
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Chemistry



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What is the liquid portion of a vaccine called?

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Pentax Penta