As he followed these instructions, Michel felt a gnawing worry that his COVID booster shot had somehow made him sicker. His brother was harboring a similar concern. The asymmetrical cluster of cancerous nodes around Michel’s left armpit on the initial scan had already seemed “a bit disturbing,” as his brother said; especially given that Michel’s first two doses of vaccine had been delivered on that side. Now he’d had a booster shot in the other arm, and the cancer’s asymmetry was flipped.
