Comparison of two polymerase chain reaction assays, DaAn Gene (DaAn Gene 2019-ncov) and Cepheid (Cepheid Xpert Xpress SARS-CoV-2) for Delta and Omicron variants of SARS-CoV-2 detection in Yaoundé, Cameroon.

Background: New severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants may affect diagnostic test accuracy.

Aim: To evaluate the performance of two reverse transcription-polymerase chain reaction (RT-PCR) assays, DaAn Gene and Cepheid, for detecting Delta and Omicron variants.

Setting: Nasopharyngeal samples were collected in Yaoundé, Cameroon, between October 2021 and December 2022.