Create an Account - Increase your productivity, customize your experience, and engage in information you care about.
Show All Answers
Learn more from the Centers for Disease Control and Prevention, here.
View information about side effects from the CDC, here. Learn more about what to expect after getting a COVID-19 vaccine, here.
Several different vaccines have been developed for COVID-19. A few of them have made it through clinical trials and have been approved by the U.S. Food and Drug Administration (FDA). Some are still in clinical trials. Of the vaccines approved for use in the U.S., between 30,000 to 45,000 participants enrolled to participate in each study. View information about individual clinical trials, here.
Information about COVID-19 vaccines for people with allergies can be found, here.
The first 2 COVID-19 vaccines approved for use in the U.S. were messenger ribonucleic acid (mRNA) vaccines. Learn more about mRNA COVID-19 vaccines, here.
Yes. COVID-19 vaccines and other vaccines may now be administered without regard to timing . Learn more.
COVID-19 vaccines are not currently approved for young children. The Pfizer-BioNTech vaccine is not approved for people under the age of 12. The Moderna and Johnson & Johnson vaccines are not approved for people under the age of 18. While COVID-19 vaccines are not currently approved for children, Moderna has begun clinical trials on younger children. Learn more.
Yes. Learn more.
No. Learn more.
Talk to your healthcare provider or pharmacist about the medication you are taking.
The COVID-19 vaccines being distributed in the U.S. have been found to be both effective and safe for most people. Vaccines work by creating an immune response in our bodies. This immune response does more than just create antibodies against a disease: It primes our bodies to fight an infection. Sometimes, these changes can affect how the cells in our bodies use the medications we take. The chance of a negative reaction between the vaccine and any medication is extremely small. Taking medication is not a reason to delay getting the COVID-19 vaccine.
No, none of the approved COVID-19 vaccines contain the live virus and cannot give you COVID-19.
COVID-19 vaccines teach our immune systems how to recognize and fight the virus that causes COVID-19. Sometimes this process can cause symptoms, such as fever. However, building immunity from a vaccine is a much safer option and these symptoms are normal signs that the body is building protection against the virus that causes COVID-19. Learn more about how COVID-19 vaccines work.
No. However, it typically takes a few weeks to build immunity after receiving a vaccine. That means it is possible a person could be infected with the virus that causes COVID-19 just before or just after vaccination and still get sick. In this case, the person would test positive for COVID-19 shortly after getting the vaccine. Learn more.
The first COVID-19 vaccines that were approved for use in the U.S. require two doses. Doses of the Pfizer-BioNTech vaccine should be given 21 days apart. The Moderna vaccine should be given 28 days apart. The different vaccine products will NOT be interchangeable. The second dose must be completed with the same vaccine brand as the first dose received.
No. Individuals who choose to be vaccinated will be given the same vaccine for both doses if they receive the Pfizer-BioNTech or Moderna vaccine. These mRNA COVID-19 vaccines are not interchangeable with each other or with other COVID-19 vaccine products. The safety and efficacy of a mixed-product series have not been evaluated. Both doses of the series should be completed with the same product. Learn more.
The protection someone gets from having an infection, called natural immunity, varies depending on the disease and from person to person. Since this virus is new, it is unknown how long natural immunity will last. As experts continue to study both the virus and the vaccines, we will continue to learn more. However, building immunity from a vaccine is a much safer option than to risk the complications from becoming ill from COVID-19.