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. 2021 Aug 13;116:e210085. doi: 10.1590/0074-02760210085

Comparative reverse transcription real-time polymerase chain reaction (RT-qPCR) results from (A) gingival fluid swab and nasopharyngeal (NP) swab specimens, and (B) saliva and NP swab specimens. Data is shown as mean ± standard deviation (SD) of cycle threshold (Ct) values for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) N1 and N2 genes, and the endogenous control RNase P (RP).

Comparative reverse transcription real-time polymerase chain reaction (RT-qPCR) results from (A) gingival fluid swab and nasopharyngeal (NP) swab specimens, and (B) saliva and NP swab specimens. Data is shown as mean ± standard deviation (SD) of cycle threshold (Ct) values for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) N1 and N2 genes, and the endogenous control RNase P (RP).