Side effects of the vaccine basically. I guess technically headaches or fatigue would be a vaccine injury

But I use the phrase "thought to" intentionally: I don't know what the science says now, but at the time there were reported cases of myocarditis in people who took the JnJ vaccine. This was like May of 2021, so I don't know if the science ever panned out on that, but it definitely drove discussions around health equity with the vaccine