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answer the questions about the reading 1. What are the names of the two companies? 2. What is the success rate of the new vaccine? 3. How many presidents has Dr. Anthany Fauci andvised in his carreer? 4. How many vaccinations did the U.K buy? 5. Why do we to wait for the vaccine to become availabie? 6. Who is the CEO of Pfizer?​