JAKARTA -- After I rolled up a shirt sleeve, a nurse wiped my arm with an alcohol swab and delivered my first shot of Sinovac Biotech's COVID-19 vaccine.
It was over in a flash, and I felt no pain. But about five minutes later, the injection site began to ache and my left arm felt numb and weak. I started to feel sleepy, and I went home to take a nap. I could still carry out my daily tasks as the symptoms were mild, but I did feel drowsy all day.
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