The Opportunistic Mycoses
Chapter 48 The Opportunistic Mycoses Infection is a rare consequence of environmental exposure of animals to normally nonpathogenic fungi. Natural resistance to most of these agents is high, and most…
The Genera Haemophilus, Histophilus, and Taylorella
Chapter 24 The Genera Haemophilus, Histophilus, and Taylorella THE GENUS HAEMOPHILUS Haemophilus spp. are assigned to the family Pasteurellaceae and are common commensal organisms of the mucous membranes of animals…
The Family Anaplasmataceae
Chapter 40 The Family Anaplasmataceae The family Anaplasmataceae has beenreorganized based on 16S rRNA gene sequences to include all species ofα-Proteobacteria in the genera Neorickettsia, Anaplasma, Ehrlichia, and Wolbachia; Aegyptianella…
General Principles of Bacterial Disease Diagnosis
Chapter 2 General Principles of Bacterial Disease Diagnosis SPECIMEN SELECTION, COLLECTION, AND TRANSPORT Results obtained from veterinary diagnosticians are in large part a direct reflection of the quality of specimen…
The Genera Mycoplasma and Ureaplasma
Chapter 39 The Genera Mycoplasma and Ureaplasma Mycoplasmas and ureaplasmas, members of the family Mycoplasmataceae, arethe smallest prokaryotes and are related phylogenetically to members of the genera Clostridium, Streptococcus, and…
The Cutaneous Mycoses
Chapter 45 The Cutaneous Mycoses The cutaneous mycoses of animals include a wide variety of diseases of the integumentary system and its appendages. Although fungal infection is usually restricted to…
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…
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…
