tetano
Editor, Senior Moderator
Lab Med
. 2022 Jul 27;lmac089.
doi: 10.1093/labmed/lmac089. Online ahead of print.
Combined Diagnosis of SARS-CoV-2: Rapid Antigen Detection as an Adjunct to Nucleic Acid Detection
Xuewen Li[SUP] 1 [/SUP], Yiting Wang[SUP] 1 [/SUP], Junqi Pan[SUP] 2 [/SUP], Jiancheng Xu[SUP] 1 [/SUP], Qi Zhou[SUP] 3 [/SUP]
Affiliations
Abstract
Coronavirus disease 2019 is a serious threat to human life, and early diagnosis and screening can help control the COVID-19 pandemic. The high sensitivity of reverse transcriptase-polymerase chain reaction (RT-PCR) assay is the gold standard for the diagnosis of COVID-19, but there are still some false-negative results. Rapid antigen detection (RAD) is recommended by the World Health Organization (WHO) as a screening method for COVID-19. This review analyzed the characteristics of RDT and found that although the overall sensitivity of RAD was not as high as that of RT-PCR, but RAD was more sensitive in COVID-19 patients within 5 days of the onset of symptoms and in COVID-19 patients with Ct ≤ 25. Therefore, RAD can be used as an adjunct to RT-PCR for screening patients with early COVID-19. Finally, this review provides a combined diagnostic protocol for RAD and nucleic acid testing with the aim of providing a feasible approach for COVID-19 screening.
Keywords: COVID-19; Early screening; Lateral flow immunoassay; RT-PCR; Sensitivity.
. 2022 Jul 27;lmac089.
doi: 10.1093/labmed/lmac089. Online ahead of print.
Combined Diagnosis of SARS-CoV-2: Rapid Antigen Detection as an Adjunct to Nucleic Acid Detection
Xuewen Li[SUP] 1 [/SUP], Yiting Wang[SUP] 1 [/SUP], Junqi Pan[SUP] 2 [/SUP], Jiancheng Xu[SUP] 1 [/SUP], Qi Zhou[SUP] 3 [/SUP]
Affiliations
- PMID: 35895307
- DOI: 10.1093/labmed/lmac089
Abstract
Coronavirus disease 2019 is a serious threat to human life, and early diagnosis and screening can help control the COVID-19 pandemic. The high sensitivity of reverse transcriptase-polymerase chain reaction (RT-PCR) assay is the gold standard for the diagnosis of COVID-19, but there are still some false-negative results. Rapid antigen detection (RAD) is recommended by the World Health Organization (WHO) as a screening method for COVID-19. This review analyzed the characteristics of RDT and found that although the overall sensitivity of RAD was not as high as that of RT-PCR, but RAD was more sensitive in COVID-19 patients within 5 days of the onset of symptoms and in COVID-19 patients with Ct ≤ 25. Therefore, RAD can be used as an adjunct to RT-PCR for screening patients with early COVID-19. Finally, this review provides a combined diagnostic protocol for RAD and nucleic acid testing with the aim of providing a feasible approach for COVID-19 screening.
Keywords: COVID-19; Early screening; Lateral flow immunoassay; RT-PCR; Sensitivity.