Combinations of saliva, nasal swabs, throat swabs or mouth swabs have not been evaluated by Aptitude in a controlled clinical study, so we cannot endorse those techniques or guarantee valid results.
In our clinical study, we show nasal swabs provide the highest performance across all subjects (both symptomatic and asymptomatic). Moreover, the result with nasal swabs comes without a presumptive negative limitation, which means that you can trust a negative result without getting confirmation from a laboratory test. Therefore, if you want to have the most confidence in the result, we recommend using nasal swabs exclusively.