Pfizer/BioNTech COVID-19 vaccine

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    According to clinical trial results, the Pfizer/BioNTech COVID-19 vaccine is 95 percent effective at preventing COVID-19, and even with the margin of error, it is at least 90 percent effective. After the infection, the immune system remembers what it learned about how to protect the body against that disease. Vaccines help develop immunity by imitating an infection. Vaccines greatly reduce the risk of infection by working with the body’s natural defenses to safely develop immunity to disease. The Pfizer/BioNTech COVID-19 vaccine requires two separate shots separated by 21 days.
    According to the U.S. FDA, there were no safety concerns identified in the 43,448 participants in the trial and no enhanced disease in the recipients.
    The CDC recommends that people who have experienced severe reactions to prior vaccines or injectable drugs can still get the Pfizer/BioNTech vaccine for COVID-19, but should discuss the risks with their doctors and be monitored for 30 minutes afterward.
    It typically takes a few weeks for the body to build immunity after vaccination. That means it is possible a person could be infected with the virus that causes COVID-19 just before or just after vaccination and get sick. This is because the vaccine has not had enough time to provide protection. There are any side effects. The immune response to vaccination can lead to sore arm, fatigue and headache in some, especially after the second dose. Symptoms usually resolve on their own in 24 hours.

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