Retraction.
;
Xavier Nicolas de Lamballerie;
Joana FM de Morais;
Fawzi Derrar;
Ndongo Dia;
Youssouf Diarra;
Lassina Doumbia;
Christian Drosten;
Philippe Dussart;
Richard Echodu;
Yannik Eggers;
Abdelmajid Eloualid;
Ousmane Faye;
Torsten Feldt;
Anna Frühauf;
Afiwa Halatoko;
Pauliana-Vanessa Ilouga;
Nalia Ismael;
Ronan Jambou;
Sheikh Jarju;
Antje Kamprad;
Ben Katowa;
John Kayiwa;
Leonard King'wara;
Ousmane Koita;
Vincent Lacoste;
Adamou Lagare;
Olfert Landt;
Sonia Etenna Lekana-Douki;
Jean-Bernard Lekana-Douki;
Etuhole Iipumbu;
Hugues Loemba;
Julius Lutwama;
Santou Mamadou;
Issaka Maman;
Brendon Manyisa;
Pedro A Martinez;
Japhet Matoba;
Lusia Mhuulu;
Andres Moreira-Soto;
Judy Mwangi;
Nadine N'dilimabaka;
Charity Angella Nassuna;
Mamadou Ousmane Ndiath;
Emmanuel Nepolo;
Richard Njouom;
Jalal Nourlil;
Steven Ger Nyanjom;
Eddy Okoth Odari;
Alfred Okeng;
Jean Bienvenue Ouoba;
Michael Owusu;
Irene Owusu Donkor;
Karabo Kristen Phadu;
Richard Odame Phillips;
Wolfgang Preiser;
Vurayai Ruhanya;
Fortune Salah;
Sourakatou Salifou;
Amadou Alpha Sall;
Augustina Angelina Sylverken;
Paul Alain Tagnouokam-Ngoupo;
Zekiba Tarnagda;
Francis Olivier Tchikaya;
Tafese Beyene Tufa;
Jan Felix Drexler;
(2022)
Retraction.
Science (New York, N.Y.), 378 (6626).
pp. 1284-1285.
ISSN 0036-8075
DOI: 10.1126/science.adg2821
In the Research Article “Gradual emergence followed by exponential spread of the SARS-CoV-2 Omicron variant in Africa” (1), we reported data from retrospective characterization of viral genomes of putative ancestors of the SARS-CoV-2 Omicron variant from western Africa months before the first detection of Omicron. After several social media posts suggested that these putative early Omicron ancestor sequences may have been false positives, we reanalyzed our data and the residual samples. We found a mixture of different SARS-CoV-2 genomic fragments contaminating some of the samples and sequence data on which we based our analysis. The residual samples are now exhausted, and the reconstruction of evolutionary intermediates cannot be replicated. Therefore, we are retracting our Research Article. The epidemiological data are not called into question and will be made available.
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