I’ve seen family/friends do phase 1 safety for a family or friend that has some type of disease but I would never voluntarily do it. In 2020 when they were projecting a 10% death rate for Covid I was thinking that would be a lot of dead bodies and could lead to the black plague. Never fear though our military had given me the vaccine. I decided to google the duration of effectiveness and found out it was cancelled in phase 1(whatever a or b) due to adverse events. WTF, none of us volunteered or signed anything for that. And it was originally supposed to be 3 course shot. I distinctly remember asking while waiting in a hours long line why we needed one and was told, “do you want the plague, didn’t you pay attention in history class”. Here’s the kicker, I googled it in 2020, the black plague is cured with 2 weeks worth of antibiotics WTF, no need for a shot. If someone falls ill with it you could put the entire unit on a preventative antibiotics course. That fucking simple no shot needed. Our NCO’s got a call and said we needed our black plague shots and the whole battalion roughly 1800 got in line. It was one full syringe administered over 15-30 minutes. You stood there with a syringe in your arm as a medic slowly squeezed the plunger until the syringe was empty. I can’t recall but 2-6 weeks later we did it again. Then I became friends with the medics and one day when I went in for a cold, I asked if they’d fake the third dose and they did, just signed off on my shot records. The third dose was supposed to be 90 or 180 days later but we got word it was canceled because 2 doses were effective. We still didn’t figure out it was a trial immunization. Instead of telling us it was unsafe and a trial, they lied. I guess we were young and dumb and the NCO’s were old and dumb. If it was an approved shot they’d know 2 shots provided “immunity” so why say we needed 3 doses originally. The never said it was canceled due to adverse events and who even knows the long term effects. Here’s the thing looking back. Every few months for readiness they’d make sure you were up to date on all your shots, most had all completed basic within the previous 5 years and didn’t need anything but the yearly flu shot. For the flu shot, the medics would print flyers and have a few times over a couple of weeks to get your shot and records signed. And your NCO would send you one of those times when you weren’t busy. You never got a call that everyone needed to show up at once, that would turn into an all day thing, that should’ve been a clue right there. I have no idea if we were a control group or actually received the vaccine, no idea if another battalion was involved and they were the control/actual group. After I left that unit and mentioned it people would just look at me odd when I’d ask how long before I’d need a black plague booster lmao. I thought it was an infantry unit thing but people at my next unit had never heard of or gotten it either.