Study Design, Site and Archival Sample Selection Criteria
This study was an experimental retrospective study of archived CoViD-19 rRT-PCR samples. Ethical approval was sought and obtained from the University for Development Studies review board (UDS/IRB/115/22). Three packets (75pcs) each of DG Rapid, SD Rapid, and SS Rapid were randomly sampled from the Ghanaian market. The study was conducted at a Food and Drugs Authority/Health Facilities Regulatory Agency (FDA/HeFRA) registered SARS-CoV-2 rRT-PCR testing facility in the Greater Accra Region of Ghana, between June 2022 and July 2022. The eligibility criteria for this study involved using clinical samples that were previously tested for COVID-19 using the rRT-PCR technique. However, samples which are insufficient, inadequately labelled, or other sample quality issues were excluded from the study. There were no restrictions on age, gender, or ethnicity.