Why should I enroll in a clinical trial when vaccines are already out?

• Right now, healthcare workers and those that have the greatest chance of getting sick or dying from COVID-19 will get vaccines first. If you do not belong to these groups, you may have to wait several months. If you participate in a vaccine clinical trial right now, you have a 50/50 chance of getting the vaccine.

• If you participate in a vaccine trial, trial staff will meet with you often to make sure you are doing okay. They will ask about symptoms or changes in your health. This type of support may not be available if you get the vaccine outside of a trial.

• We don’t know if the vaccine works well in all age groups. We still need to know if the vaccine is effective in children.

• Pfizer and Moderna alone will not be able to meet all the vaccine needs. Having other vaccines will needed to provide access to everyone.

• It will be important to continue developing new versions of the vaccine as the virus changes over time.

• Some vaccines may work better in certain situations. For instance, some vaccines may need special freezers to keep them cold. Others may work just fine in a regular refrigerator. This means we need to have as many of these different types of vaccines as possible. We need more people to participate in trials to test these different vaccines. This will all help to make sure everyone has the same chance to get a vaccine.

What happens if I enroll in a vaccine trial and I find out I am now able to get the vaccine outside of the trial.

• You can stop taking part in the trial at any time. It is up to you.

• If you want to stop participating, you can let the vaccine trial staff know. They will provide you with instructions on how you may be able to get the vaccine that is available outside the trial.