I was a participant in the Pfizer vaccine clinical trial. I got both injections last summer. The study was placebo controlled and double blinded. So I didn’t know for sure if I received the vaccine, or 2 shots of saline. But my arm got sore several hours after the injections. Which would be very unlikely if I got the placebo.
I think having any fluid shoved deep into muscle tissue will result in temporary soreness at the site.
I’m still a participant in the trial, which lasts for 2 years. Once a week, I report on a phone app if I have any COVID symptoms. And obviously, if I should be diagnosed with Covid, I need to report that ASAP. I also go in for periodic blood tests to determine if I’m making antibodies, and at what titers. This data hasn’t yet been released. And as study subjects, we are compensated. Pfizer pays us $5 for each weekly phone report, and $119 for each blood draw. I’ll also volunteer if subjects are needed for booster vaccine trials. Given the variant SARS-Cov-2 strains which have appeared, this may be necessary.
They haven't told you if you've produced antibodies from the vaccines?
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