The presence of the various students can be scanned using the QR code in the app and thus recorded. The student is then automatically added to the pool group. Different groups can be created for different lessons with changing students. A student only has to be tested once, even though he may be taking part in lessons with students from other classes.
The student puts the sample stick in his mouth for at least 30 seconds and thereby releases enough saliva. The sample is then collected in a container together with the other samples from the class and brought to the laboratory.