DIPLOBACILLI

DIPLOBACILLI, bacilli that are arranged in pairs. This characteristic does not have absolute value and is not constant; the same microorganism can occur both in diploform and form short chains; at the same time, it can exist also in the form of individuals. The form of D. in the body - short rods, coccobacilli or elongated grains; on artificial media - more often short rods with rounded ends. Among pathogenic D., one should note the bacillus of Friedlander (Pneumobacillus Friedlander), which in some cases is the causative agent of lobar pneumonia. Pairwise arrangement is also often found in the rhinoscleroma bacillus, the bacillus ozaenae, Bac. lactis aerogenes, Bac. mucosus capsul. Pfeiffer and others. A common characteristic of all these microbes is the ability to form mucous capsules in the body, and sometimes in culture, consequently, in relation to classification, these microbes are united into a group of encapsulated bacteria.