JEFFERSON CITY-Â Arrowhead Stadium in Kansas City will host a "mega" vaccination event next Friday and Saturday, Governor Mike Parson announced at his briefing Thursday. Today, we are happy to announce that we have partnered with @JacksonCountyHD, @TrumanMedKC, @Chiefs Organization, @RideKCTransit, County Executive Frank White, and other local leaders and legislators to host a mega vaccination event at Arrowhead Stadium in Kansas City. pic.twitter.com/GQZfaO6lu2— Governor Mike Parson (@GovParsonMO) March 11, 2021 The two-day event will operate from 9 a.m. - 7 p.m. on Friday, March 19 and Saturday, March 20. Approximately 6,000 doses of the Johnson & Johnson vaccine have been reserved to fully vaccinate 3,000 Missourians each day.