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Online Journal of Veterinary Research©

(Including Medical and Laboratory Research)

Established 1994
ISSN 1328-925X


Volume 27 (6): 397-402, 2023.

Infections by gram + bacteria in laboratory mice


Ansam Khalid Mohammed


Department of Microbiology, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq.

E-mail: ansam@covm.uobaghdad.edu.iq




Mohammed AK., Infections by gram + bacteria on laboratory mice, Onl J Vet Res., 27 (6): 397-402, 2023. Mice of all ages are highly susceptible to gram positive bacterial infections associated with high mortality and able to infect surrounding mammals. These include Clostridium spp., Cl. Piliforme, Cl. Perfringens, Cl. Difficile, Corynebacteria, Co. bovis, Streptococci, Staphylococci S. aureus and S.xylosus, beta-hemolytic A, B, C and G sub types,. In contrast, Strep. Pneumonia is rare in mice. Immune suppression allows infection by microbes entering entry through trauma or injuries. Author describes, immunity, environment and lists gram + bacterial genotypes infecting laboratory mice with particular emphasis on Clostridia spp and Tizzer’s disease.


Keywords: gram positive, bacteria, laboratory, mice.