RETRACTED: Gradual emergence followed by exponential spread of the SARS-CoV-2 Omicron variant in Africa

• Instituto Nacional de Saúde (MZ)

• Centre de Recherche Médicale et Sanitaire (NE)

• MRC Unit the Gambia (GM)

• Golden Valley Agricultural Research Trust (ZM)
• University of Zambia (ZM)

• Uganda Virus Research Institute (UG)

• Ministry of Health (KE)

• Ministry of Health (KE)

• Université des Sciences, des Techniques et des Technologies de Bamako (ML)

• Institut Pasteur de Madagascar (MG)

• Centre de Recherche Médicale et Sanitaire (NE)

• Centre International de Recherches Médicales de Franceville (GA)

• Centre International de Recherches Médicales de Franceville (GA)

as printed: Jean-Bernard Lekana-Douki

• University of Namibia (NA)

• Université Professionnelle d'Afrique (CG)

• Uganda Virus Research Institute (UG)

• Centre de Recherche Médicale et Sanitaire (NE)

• University of Zimbabwe (ZW)

• Instituto Nacional de Investigação em Saúde (AO)

• Golden Valley Agricultural Research Trust (ZM)
• University of Zambia (ZM)

• University of Namibia (NA)

as printed: Andres Moreira-Soto

• Gulu University (UG)

• Centre International de Recherches Médicales de Franceville (GA)

as printed: Nadine N´dilimabaka

• Uganda Virus Research Institute (UG)

• MRC Unit the Gambia (GM)

• University of Namibia (NA)

• Centre Pasteur du Cameroun (CM)

• Institut Pasteur du Maroc (MA)

• Jomo Kenyatta University of Agriculture and Technology (KE)

• Jomo Kenyatta University of Agriculture and Technology (KE)

• Joint Clinical Research Centre (UG)

• Laboratoire National de Référence (MA)

• Kumasi Centre for Collaborative Research in Tropical Medicine (GH)
• Kwame Nkrumah University of Science and Technology (GH)

• Noguchi Memorial Institute for Medical Research (GH)
• University of Ghana (GH)

• Stellenbosch University (ZA)

• Kumasi Centre for Collaborative Research in Tropical Medicine (GH)
• Kwame Nkrumah University of Science and Technology (GH)

• Tygerberg Hospital (ZA)
• Stellenbosch University (ZA)
• National Health Laboratory Service (ZA)

• University of Zimbabwe (ZW)

• Ministre de la Santé (BJ)
• Ministère de la Santé (TN)

• Institut Pasteur de Dakar (SN)

• Kumasi Centre for Collaborative Research in Tropical Medicine (GH)
• Kwame Nkrumah University of Science and Technology (GH)

• Centre Pasteur du Cameroun (CM)

• Laboratoire National de Référence (MA)

as printed: Zekiba Tarnagda

• Université Professionnelle d'Afrique (CG)