Table 1.

Lifespan and spread of Omicron clades in Morocco and their possible introduction sources.

Clade	Lifespan	No of samples	Potential source of the first introduction
21K	Dec 2021 and Jun 2022	172	EPI_ISL_10740491Europe/UK/England Europe/UK/England
21 L	Feb 2022 and Aug 2022	178	EPI_ISL_13588936South America/Brazil/Rio de Janeiro/Resende South America/Brazil/Rio de Janeiro/Resende
22A	Jun 2022 and Jul 2022	5	EPI_ISL_15701296Europe/Switzerland/Basel-Landschaft Europe/Switzerland/Basel-Landschaft
22B	May 2022 and Sep 2022	496	EPI_ISL_15701252Europe/Russia/Moscow Region/Solnechnogorsk Europe/Russia/Moscow Region/Solnechnogorsk
22C	Jun 2022 and Jul 2022	9	EPI_ISL_12413598North America/U.S.A./Ohio North America/U.S.A./Ohio
22E	Oct 2022 and Nov 2022	20	EPI_ISL_15501517Europe/Switzerland/Zurich Europe/Switzerland/Zurich