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First let me point out that for the US, I'm not knowledgeable enough to speak for the rest of the world, you are correct. There are no approved live attenuated vaccines mixed with componet/subunit/inactivated vaccines. Background: Before we go into why that's true, let's work a little to show that's true. The FDA publishes a wonderful list of every ...


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The major reason for this are differences in the preparation methods. Live (attenuated) vaccines need permanent cooling, which makes their use in third world countries difficult. Inactivated vaccines are inactivated either by heat, radiation of chemicals and are often freeze-dried after purification (removal of chemicals used for killing). In this ...



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