I think there is a deliberate method they are purs

I think there is a deliberate method they are pursuing certifications. The first in 2006 was with NAMSA that tested their "proof of concept" of the MIT1000 when tested against a standardized gas chromatography. Notice that they used E. Coli and Salmonella to test but they were not certified for them. The MIT1000 was certified. The next certification was for all six species of Listeria as well as "ruggedness tests" that is how well will the machine work when the preparation guidelines are not strictly followed. This was to answer the question " will the device still work if the tech makes a mistake or there is a sample that is out of spec?'. Also Listeria is one of the most lethal pathogens. Now they are going for E. Coli and Salmonella. These three pathogens Listeria, E. Coli, and Salmonella are the major organisms of " The Big Six". Listeria, E. Coli, Salmonella, Vibrio Cholera, Campylobacter, and Shigella. It appears that they have their sights on two of the last three in the near future, although I have been told by Nunez in July that they are concentrating right now on the major three since they can start sales with these three certifications and these three organisms are responsible for most cases of foodborne illness. As we know, Vibrio and Campylobacter are important in the seafood industry. This is a huge market. The last organism is Shigella and it is a close relative of E. Coli. In fact some E. Coli are classified in the Shigella species. I cant imagine that they would need too much work to add it to their library and get that certification as well. So it seems to me that they have been approaching the certification process in the most logical way since it will give the market what it needs most, and in turn  these revenues can sustain the company for the long term.