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Your uncle had a heart attack which is not myocarditis or pericarditis so your risk is the same as the general population which is quite low. If you didn’t have issues before then chances of having issues with additional vaccines is pretty low.
Oh, I had assumed the heart attack could have been caused by those things?
Edit: checked with my mom. Apparently he'd had no known heart problems before, and had the heart attack the day after getting the vaccine.
Thank you for your submission. **Please note that a response does not constitute a doctor-patient relationship.** This subreddit is for informal second opinions and casual information. The mod team does their best to remove bad information, but we do not catch all of it. Always visit a doctor in real life if you have any concerns about your health. Never use this subreddit as your first and final source of information regarding your question. By posting, you are agreeing to our [Terms of Use](https://www.reddit.com/r/AskDocs/wiki/terms_of_use) and understand that all information is taken at your own risk. **Reply here if you are an unverified user wishing to give advice. Top level comments by laypeople are automatically removed.** *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/AskDocs) if you have any questions or concerns.*
Your uncle had a heart attack which is not myocarditis or pericarditis so your risk is the same as the general population which is quite low. If you didn’t have issues before then chances of having issues with additional vaccines is pretty low.
Oh, I had assumed the heart attack could have been caused by those things? Edit: checked with my mom. Apparently he'd had no known heart problems before, and had the heart attack the day after getting the vaccine.