No increased rates of COVID-19 breakthrough infections in Altötting, a Bavarian district with a history of environmental PFOA contamination-results from a retrospective observational study

一项回顾性观察研究结果显示，巴伐利亚州阿尔特廷地区（该地区曾遭受环境全氟辛酸污染）的新冠病毒突破性感染率并未增加。