Fig. 1.

Number of target viruses detected by individual laboratories and methods. Horizontal hatched bars, target viruses detected in best replicate using 2 million reads. Solid black bar, target viruses detected in best replicate using all reads. Grey bar, target viruses detected in second replicate using all reads. White bar, target viruses detected in both replicates using all reads. Laboratories L01-B, L11, L13 and L15-B performed analysis only on the total read set.