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…
PHARMACOLOGY, TOXICOLOGY & THERAPEUTICS
Fungal-Like Agents
Chapter 49 Fungal-Like Agents RHINOSPORIDIUM SEEBERI Rhinosporidium seeberi has for years been shrouded in taxonomic uncertainty. The organism, initially described as a coccidian parasite in 1900 by Seeber, was classified…
The Genera Treponema and Borrelia
Chapter 32 The Genera Treponema and Borrelia THE GENUS TREPONEMA Treponema spp. are motile, helical rods with tight, regular to irregular spirals (Figure 32-1). Many species are normal flora in…
The Genus Clostridium
Chapter 33 The Genus Clostridium Clostridia are large, sporulating, gram-positive, oxygen-tolerant to strictly anaerobic rods. Clostridium piliforme is the exception, in that it is gram negative. The source of clostridia…
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…
