Got the booster the other day and no 15 minute wait time. This is in the US. I did ask them to aspirate the shot before pushing it and they seemed surprised but

Got the booster the other day and no 15 minute wait time. This is in the US. I did ask them to aspirate the shot before pushing it and they seemed surprised but did it without issue and were very nice about it. Have read a few articles questioning whether accidental intravenous injections are causing myopericarditis. Figured having them aspirate would just be a good thing. https://pubmed.ncbi.nlm.nih.gov/34406358/ https://pubmed.ncbi.nlm.nih.gov/34406358/