You'll have to excuse me if these images are large, just click on 'em to reduce. These protozoa were part of several pictures I took after a purge that resulted from using the sulpha-based antibiotics, designed to control protozoa. Although the drug failed, due to microbes acquiring resistence [probably through slime coating], I was able to capture several different types, and stages. The above picture is just a small sample. I have failed to see these particular type, during routine stool smear exams. The time of expulsion, resulted in putrid organic chemical smell, which I will now use as an indicator of the presents of parasitic microbes in stool. This should apply to all humans and mammals in general. Because people generally do not have the equipment or skills to make these kinds of ascertations, I will soon open my research to the public, and help conduct tests and use microphotography for archival referencing. Shroom