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Excess risk in first 42 days following vaccination in England. Estimated incidence of GBS cases within 6 weeks (per 100 000 vaccine doses), comparing reports of GBS cases 0–42 and 43–84 days for first-dose vaccines (all vaccines, ChAdOx1 nCoV-19, tozinameran) and second-dose vaccines. Diamonds represent upper and lower limits of 95% CIs. An excess of GBS cases was noted in the first 42 days following first-dose vaccination, accounted for by the ChAdOx1 nCoV-19 vaccine.
