from Zach Nayer, in StatNews
What we found was sobering yet not surprising. Spikes in Covid-19 cases occurred in seven of the 14 cities and townships where these rallies were held: Tulsa; Phoenix; Old Forge, Penn.; Bemidji, Minn.; Mankato, Minn.; Oshkosh, Wis.; and Weston, Wis.
Chart in the article shows that Bemidji spiked twice, 6 days after the rally, and again at 9 days.