Diagnosans are an alien race known for their natural ability to detect and treat a variety of diseases in all types of living things.
Due to this, many of them become physicians. They have complex minds and an equally complex language, so much so that standard translator microbes cannot decode the intricacies of their speech. They are soft-spoken and gentle, further adding to their abilities as doctors.
Usually, they use a sterile force field when performing surgery, but they must put their mask back on before turning off the field, since even traces of a disease can prove fatal if inhaled into their nose and mouth (figure 1.2).
Diagnosans often freeze the bodies of dying patients at the moment before death, in order to use their organs for other patients. Stark became extremely upset after realizing this, since he is a Stykera, and can communicate with dying individuals as they are crossing over.