https://www.wenxuecity.com/news/2021/07/11/10716171.html
综合《休斯敦纪事报》与《印度电讯报》报导，美国一对夫妇4月在休斯敦举行户外婚礼，并要求所有宾客必须提供完整接种证明，其中2名来自印度的男女宾客在10天前接种了第二剂印度国产Covaxin疫苗，女子在婚礼结束当晚感觉身体疲劳，男子则在2天后出现咳嗽，第3天两人都开始发烧，隔日双双确诊Delta变种病毒。
不幸的是，虽然这名印度男子没有慢性病史，但年纪已超过65岁高龄，病情不断恶化之下，最终在1个月后死亡。报导称，婚宴中与这对印度男女有过近距离接触的4名宾客也相继确诊，”突破性感染”了Delta变异株，4人中接种莫德纳疫苗与辉瑞/BNT疫苗者各有2人，其中一名确诊者患有糖尿病，病况发展成重症，住院接受单株抗体治疗。
加州数据
https://www.smdailyjournal.com/news/local/breakthrough-covid-cases-rare-in-california/article_5d190594-e068-11eb-89cf-1b10f61970ac.html
About 7,550 out of more than 19.5 million Californians who were fully vaccinated against COVID-19 have contracted the disease, a minuscule percentage that provides strong evidence of the vaccines’ effectiveness, according to state data.
The breakthrough infections through June 23 amount to 0.039% of vaccinated Californians — or one case out of every 2,583 vaccinated people.
Most of the infections were minor, but 62 vaccinated Californians died from COVID-19, according to California Department of Public Health data.
Arkansas 数据
https://www.thv11.com/article/news/verify/yes-over-4400-fully-vaccinated-people-have-been-hospitalized-with-covid-19/91-19c6c3f5-5a6e-499d-8926-baa82a9080f2
As of July 7, Arkansas has reported a total of 1,902 breakthrough cases, 68 hospitalizations of breakthrough cases, and 7 confirmed deaths of breakthrough cases.
https://usafacts.org/visualizations/covid-vaccine-tracker-states/state/arkansas
Overall, 1,046,644 people or 34.68% of Arkansas's population have been fully vaccinated.