Vashchenok V S, Tarakanov N F
Parazitologiia. 1977 Nov-Dec;11(6):474-9.
Hystological investigations of experimentally infected X. gerbilli minax have shown that at the early stages of the digestion, while in the intestine compact clots of non-digested blood, are preserved, proceeds the reproduction of the plague agent. With the decay of the alimentary clot it changes into the dying off of the microbe population and after the ceasing of digestion the accumulation of bacteria renews again. Simultaneously with the changes in the number of microbes their morphology varies. At the initial stage of blood digestion bacilli typical for the agent are dominant. With the decay of the alimentary clot they are replaced by ovoid and spheroid forms. After the ceasing of the digestion cycle the microbe mass is represented by small coccobacteria. During the decrease in the plague agent abundance bacteria are absent mostly often from the midgut and posterior parts of the alimentary canal. Most favourable conditions for their preservation exist in this period in the proventriculus and in adjoining to it oesophagus part.
对实验感染长爪沙鼠的组织学研究表明，在消化的早期阶段，当肠道中保存着未消化血液的紧密凝块时，鼠疫杆菌开始繁殖。随着食物凝块的分解，它会转变为微生物群体的死亡，而在消化停止后，细菌的积累又会再次恢复。与此同时，随着微生物数量的变化，它们的形态也会发生变化。在血液消化的初始阶段，典型的杆菌占主导地位。随着食物凝块的分解，它们会被卵形和球形形态所取代。在消化周期停止后，微生物群体由小的球菌组成。在鼠疫杆菌数量减少期间，中肠和消化道后部大多没有细菌。在这个时期，前胃及其相邻的食管部分存在着最有利于它们保存的条件。
