The 30,000 subjects are divided in two groups: those who get the vaccine and those who get a placebo.
As she took my blood pressure, the nurse looked up at me and said, in a quite serious tone:"Placebos are as important as the vaccine. The trial needs a control group. You are helping humanity either way." The injection didn't hurt. They took me to a waiting room, where I stayed for half an hour of observation as a precaution. Three or 4 other volunteers scrolled through their phones as they waited."Because we are all heroes here, girl," she said.
The second dose came in mid-September. It hurt a lot more, and for a while. A hard, red knot emerged at the injection site.
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