Vashchenok V S, Shchedrin V I, Osipova S P
Parazitologiia. 1985 Jul-Aug;19(4):273-6.
Xenopsylla cheopis fleas infected parenterally with the virulent strain of plague microbe of gerbil variant preserved the agent to the end of their lives. In the body cavity the microbes retained their ability for reproduction which was, however, limited. During the first seven days after the infection the number of microbes slightly increased and later became stabilized. Its mean indices (mean g) varied within the limits of 500 to 2000 microbe cells per 1 individual, maximum index rarely exceeded 30 000 microbe cells. Parenteral infection with plague agent did not affect essentially the longevity of fleas.
经皮下感染沙鼠变种鼠疫杆菌强毒株的印鼠客蚤，在其生命末期仍保有该病原体。在体腔内，微生物保留了繁殖能力，不过繁殖能力有限。感染后的头七天内，微生物数量略有增加，之后趋于稳定。其平均指数（平均每只）在每只500至2000个微生物细胞的范围内变化，最高指数很少超过30000个微生物细胞。用鼠疫病原体进行皮下感染对跳蚤的寿命基本没有影响。
