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epa09618244 Indonesian health workers put the saliva sample during coronavirus swap tests at the Pasar Senen train station in Jakarta, Indonesia, 03 December 2021. The Indonesian government has tightened border restrictions, extended quarantines, and restricted movement on strategic toll roads, as a precautionary measure to limit the spread of the Omicron variant of the Sars-CoV-2 coronavirus for upcoming Christmas and new year holidays. (KEYSTONE/EPA/BAGUS INDAHONO)