Perhaps I could add something here.
People who are frightened for their lives or for their safety are returned to their country of origin and only 1% to 3% are at risk? It seems to me that someone looking at it logically would ask themselves, “Well, we might find 20% or 30%, but 1% or 3%?”
So there seems to be something wrong with the logic in terms of the way in which the exams are carried out.