The Genus Mycobacterium
Chapter 11 The Genus Mycobacterium Mycobacteria cover the range from saprophytes to opportunists to obligate pathogens, and have close relatives in other genera of pathogenic bacteria (Table 11-1). All members…
The Genus Fusobacterium
Chapter 37 The Genus Fusobacterium The genus Fusobacterium is in the class Fusobacteria, order Fusobacteriales, and family Fusobacteriaceae. The 13 current species are non–spore-forming, anaerobic, gram-negative fusiform or pointed rods,…
The Genera Campylobacter, Helicobacter, and Arcobacter
Chapter 28 The Genera Campylobacter, Helicobacter, and Arcobacter CAMPYLOBACTER Members of the genus Campylobacter are gram-negative, slender, spiral to curved rods (Figures 28-1 and 28-2). Many were formerly in the…
Introduction to Veterinary Mycology
Chapter 44 Introduction to Veterinary Mycology Fungal diseases of nonhumans were reported nearly two centuries ago, and among the first was infection by Beauveria bassiana, a fungal pathogen of silkworms…
Infrequently Encountered Gram-Negative Rods
Chapter 27 Infrequently Encountered Gram-Negative Rods BARTONELLA SPECIES Bartonella is the only genus of the family Bartonellaceae. These aerobic, slowly growing, facultatively intracellular, gram-negative organisms are placed in the α-division…
The Genera Listeria and Erysipelothrix
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…
The Subcutaneous Mycoses
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…
The Genus Brachyspira
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…
The Genera Moraxella and Neisseria
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…
The Genera Streptococcus and Enterococcus
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…
