Chapter 10 The Genera Listeria and Erysipelothrix Members of the genera Listeria and Erysipelothrix are gram-positive, non–spore-forming, facultatively anaerobic rods. Listeria monocytogenes are small coccoid rods that occur frequently in…
Chapter 46 The Subcutaneous Mycoses Subcutaneous mycoses comprise a broad range of infections that involve the deeper layers of the skin, muscle, bone, or connective tissue. Common themes include typical…
Chapter 29 The Genus Brachyspira The family Spirochaetaceae contains pathogens in the genera Treponema and Borrelia (see Chapter 32), and Brachyspira. Many species of Brachyspira were formerly in the genus…
Chapter 21 The Genera Moraxella and Neisseria Members of the genera Moraxella and Neisseria are found on the skin, mucous membranes, and conjunctivae of mammals. The majority of these organisms…
Chapter 5 The Genera Streptococcus and Enterococcus THE GENUS STREPTOCOCCUS Streptococci are gram-positive, facultatively anaerobic, catalase negative, non–spore-forming, nonmotile spherical bacteria. Cell division in a single plane leads to formation…
Chapter 35 The Genus Bacteroides Gram-negative anaerobic, non–spore-forming bacteria of veterinary importance are in the genera Bacteroides (the subject of this chapter) and Fusobacterium, Prevotella, Porphyromonas, and Dichelobacter (covered in…
Chapter 41 The Genera Chlamydia and Chlamydophila Members of the order Chlamydiales are gram-negative obligate intracellular bacterial pathogens that parasitize hosts from humans to amebae. The family Chlamydiaceae has recently…
Chapter 17 The Genus Yersinia Yersiniae are oxidase-negative, facultatively anaerobic, catalase-positive, gram-negative rods, members of the family Enterobacte-riaceae. The genus contains seven species, including Yersinia pestis, the causative agent of…
Chapter 23 The Genera Mannheimia and Pasteurella Mannheimia and Pasteurella are members of the class α-Proteobacteria, order Pasteurellales, family Pasteurellaceae, that contain small, facultatively anaerobic, nonmotile, gram-negative rods or coccobacilli…
Chapter 20 The Genera Aeromonas, Plesiomonas, and Vibrio The genera Aeromonas, Plesiomonas, and Vibrio comprise gram-negative, facultatively anaerobic rods in the class γ-Proteobacteria. They ferment glucose and are usually oxidase…
