Skip to main content
. 2022 Jan 20;3(2):137–153.e3. doi: 10.1016/j.medj.2022.01.001

Figure 5.

Figure 5

Determination of seroconversion in blood using saliva samples

(A) Graphical representation of the ROC AUC curves for salivary Spike-f and S1 IgG reactivities for the entire study cohort on indicated day after initial vaccination, using the clinical IgG serology result determined by Elecsys Anti-SARS-CoV-2 S test as reference.

(B) ROC AUC curve analysis of indicated patient groups on D35 saliva samples.

(C) Performance summary on D35 salivary anti-Spike-f IgG to detect seroconversion in paired serum classified by the Elecsys Anti-SARS-CoV-2 S test. AUC, area under the curve; PPV, positive predictive value; NPV, negative predictive value; ROC, receiver operating characteristic.