Journal of Travel Medicine · 2022 · 26 citations · 2 references
Veterinary MedicineInfectious DiseasesEpidemiologyGlobal HealthInfectious Disease EpidemiologyDisease SpreadEmerging Viral DiseasesGlobal EpidemiologyPandemic ResponseTravel-associated InfectionsViral InfectionsCross-border Disease TransmissionCross-border Outbreak InvestigationPandemic RiskPandemic Risk AssessmentPandemic Spread PatternsSars-cov-2 InfectionSars-cov-2 Variant SurveillanceTrade-related Disease Spread
Omicron, a fast-spreading SARS-CoV-2 variant of concern reported to the World Health Organization on 24 November 2021, has raised international alarm. We estimated there is at least 50% chance that Omicron had been introduced by travellers from South Africa into 11 of the 14 countries studied by 28 November 2021.
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Omicron-variant border bans ignore the evidence, say scientists
Smriti Mallapaty · Nature · 2021 · 51 citations