YERSINIA PSEUDOTUBERCULOSIS IN A CLOSED COLONY OF EGYPTIAN FRUIT BATS (ROUSETTUS AEGYPTIACUS)

被引:20
作者
Childs-Sanford, Sara E. [1 ]
Kollias, George V. [1 ]
Abou-Madi, Noha [1 ]
McDonough, Patrick L. [2 ]
Garner, Michael M. [3 ]
Mohammed, Hussni O. [2 ]
机构
[1] Cornell Univ, Coll Vet Med, Sect Wildlife Hlth, Ithaca, NY 14853 USA
[2] Cornell Univ, Coll Vet Med, Dept Populat Med & Diagnost Sci, Ithaca, NY 14853 USA
[3] NW ZooPath, Munroe, WA 99272 USA
关键词
Egyptian fruit bat; Rousettus aegyptiacus; Yersinia pseudotuberculosis; abscess; population density; stress; GLUCOCORTICOIDS; INFECTION; MONKEYS;
D O I
10.1638/2007-0033.1
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
An outbreak of Yersinia pseudotuberculosis (Yptb) Occurred in a closed colony of Egyptian fruit bats (Rousettus aegyptiacus) and resulted in the death of seven bats over a 6-week period. An initial survey of the remaining bats revealed visceral abscessation characteristic of pseudotuberculosis in five of the 12 bats examined (41.7%), inciting depopulation of the colony. At necropsy, 70% of the 115 bats in the colony exhibited gross evidence suggestive of Yptb infection, including mesenteric lymphadenopathy (ML), hepatic abscessation (HA), and/or splenomegaly (SPM). Thirty of these bats ( 13 females and 17 males of various ages) were chosen at random and their tissues submitted for bacterial culture and histopathologic examination. Twenty-three of these 30 bats had one or more gross lesions considered consistent with Yptb, including ML, HA, and SPM. On histopathology, four of the 30 bats had necrotizing lesions containing Gram-negative bacteria in multiple organs, while 18 others exhibited mild mesenteric lymphadenitis and hepatitis. Four of the 30 bats had positive cultures for Yptb. Bats with gross evidence of mesenteric lymphadenopathy, splenomegaly, or histopathologic presence of demodicosis or bacteria in tissues were more likely (P < 0.05) to have a positive Yersinia Culture. Examination of the correlation between population density and mortality rates of the colony revealed that the mortality rate of subadult bats increased dramatically at the time of the outbreak, when the population density was at its highest. It is Suspected that stress, primarily from severe overcrowding, predisposed the bat colony to morbidity and mortality from this organism, which likely originated from a rodent reservoir.
引用
收藏
页码:8 / 14
页数:7
相关论文
共 23 条
  • [1] Allchurch AF, 2003, ZOO WILD ANIMAL MED, V5, P724
  • [2] [Anonymous], 2000, MOTILITY TEST BIOCH
  • [3] BASKIN GB, 1977, J AM VET MED ASSOC, V171, P908
  • [4] BASKIN GB, 1980, S NATL ZOOLOGICAL PA, P219
  • [5] Bielli M, 1999, J ZOO WILDLIFE MED, V30, P532
  • [6] Brice S, 1995, DODO, P139
  • [7] YERSINIA-PSEUDOTUBERCULOSIS INFECTION - STUDY OF AN EPIZOOTIC IN SQUIRREL-MONKEYS
    BUHLES, WC
    VANDERLIP, JE
    RUSSELL, SW
    ALEXANDER, NL
    [J]. JOURNAL OF CLINICAL MICROBIOLOGY, 1981, 13 (03) : 519 - 525
  • [8] CAMPBELL GL, 2007, HARRISONS PRINCIPLES, P993
  • [9] Disseminated microsporidiosis due to Encephalitozoon hellem in an Egyptian fruit bat (Rousettus aegyptiacus)
    Childs-Sanford, S. E.
    Garner, M. M.
    Raymond, J. T.
    Didier, E. S.
    Kollias, G. V.
    [J]. JOURNAL OF COMPARATIVE PATHOLOGY, 2006, 134 (04) : 370 - 373
  • [10] Crawshaw G, 1995, Proc Am Zoo Aquat Assoc Nutr Advis Group, V1, P136