After the ProSeq identification Task(I) was completed, ProSeq grouping Task(II) (Figure 1 ) was used to examine the identified organism values listed in Result1 and grouped them together if they identified the same taxonomic class. Each entry in Result1 was examined and a new entry was created in Result2 if the identified organism did not appear in this list. The entries of Result2 represented the distinct individual organisms identified, but might still contain redundant information. When the ProSeqs were designed to detect the same organism and they all hybridized well, this grouping led to a reduction in redundant information being reported. But, when one ProSeq did not hybridize as well for a variety of possible reasons, multiple entries would appear in Result2 that actually represent hybridization from the same pathogen. This is because there is an alternative cause for the ProSeq hybridizing in this manner. This hybridization could be caused by two different but closely related organisms both being present in a sample and hybridizing to the microarray. Because we have not yet developed methods to distinguish these cases, no further reduction of the list of organisms is made for in ProSeq grouping Task(II) in cases where the level of identification varied on different ProSeq targeted for the same organism.