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. 2022 Jun 24;221:109323. doi: 10.1016/j.buildenv.2022.109323

Fig. 2b.

Fig. 2b

Schematic representation of community transmission of a cluster of 52 patients infected with the Omicron variant transmitted from an infected air crew member. Note. Case 17 was the index case in this outbreak. Case 19, which was a household contact, acquired SARS-CoV-2 and further spread the infection in the community. The “tick” symbol represents completion of two doses of COVID-19 vaccination.