Solicited local and systemic adverse reactions.
≤28
ADVERSE REACTIONS, ADVERSE EVENTS
Percentages of participants who had solicited local or systemic adverse reactions within 7 days by grade after the 50 µg mRNA-1273.222 second booster dose (left) and mRNA-1273 historical group (right) at day 91 (ref. The incidence of unsolicited adverse events regardless of the relationship to vaccination ≤28 days after the booster dose of mRNA-1273.222 was 23% (Supplementary Table 