Not sure why CNN chose to say March here, but the report (and CNN's own article that was linked in the quote!) was from Dec 2020 [1]. The CDC also studied this

Not sure why CNN chose to say March here, but the report (and CNN's own article that was linked in the quote!) was from Dec 2020 [1]. The CDC also studied this in 2018-2019, but they didn't produce a theory [2]. [1] https://www.nap.edu/catalog/25889/an-assessment-of-illness-in-us-government-employees-and-their-families-at-overseas-embassies https://www.nap.edu/catalog/25889/an-assessment-of-illness-i... [2] https://www.documentcloud.org/documents/20444983-foia-21-00330-final-report1 https://www.documentcloud.org/documents/20444983-foia-21-003...