Comments on “Nonadaptive Group Testing Based on Sparse Pooling Graphs” [Mar 17 1525-1534]

In [1], the existence of a nonadaptive group testing scheme with arbitrarily small error probability is shown (Theorems 2 and 3) as the number of defective items scales linearly with the number of items. The claims of Theorems 2 and 3 are invalid.