Answer: No, you will not have to determine the exact vaccine that caused the fever and rash. The CDC will determine that information.
Explanation:
To report a vaccine reaction to VAERS you just have to list the symptoms and reactions that were caused after getting a vaccine. The form that is needed to fill out a VAERs can be found on the CDC website. The person filling out the form will need to know the who, when, where, and how of the injury or symptom.
After the form has been received the patient will be contacted and their symptoms will be monitored. Some of the most common reactions after getting a vaccine are;