https://www.forbes.com/sites/mattperez/2020/07/31/how-at-least-44-of-young-people-at-a-summer-camp-caught-coronavirus/?utm_source=FBPAGE&utm_medium=social&utm_content=3540351687&utm_campaign=sprinklrForbesMainFB#71edb770a456
秋冬季北半球的国家真有种不好预感。