There is no maximum value for H. pylori. The higher the DPM titer value, the more active H. pylori is, and the lower the value, the less active it is, so it is not an indication of the amount of H. pylori. The amount of H. pylori. If the number of H. pylori is relatively small, but the level of activity is very high, the value of H. pylori is also very high, some may reach 2000 DPM, or even 3000 DPM. so based on the value of H. pylori, it does not indicate how many H. pylori there are in the end.