Canine Brucellosis
Chapter 38 Canine Brucellosis Craig E. Greene and Leland E. Carmichael Etiology and Epidemiology Brucella canis is a small (1.0 to 1.5 µm), gram-negative, aerobic, coccobacillary organism. Its rough colonial morphology,…
INTERNAL MEDICINE
Cryptococcosis
Chapter 59 Cryptococcosis Jane E. Sykes and Richard Malik Etiology Cryptococcosis is an important fungal infection of humans and animals and the most common systemic mycosis of cats. The infection…
Bacterial Infections of the Central Nervous System
Chapter 91 Bacterial Infections of the Central Nervous System Marc Kent References Images Web Tables, Boxes, and Appendices Etiology Central nervous system (CNS) inflammation is described as encephalitis, myelitis, and meningitis based…
Environmental Factors in Infectious Disease
Chapter 93 Environmental Factors in Infectious Disease Craig E. Greene, J. Scott Weese and Janet P. Calpin Means of Transmission The reservoir of an infectious disease is the natural habitat…
Blastomycosis
Chapter 57 Blastomycosis Alfred M. Legendre Etiology Blastomycosis, as discussed in this chapter, is a systemic mycotic infection caused by the dimorphic fungus Blastomyces dermatitidis. This should not be confused…
Trypanosomiasis
Chapter 72 Trypanosomiasis Trypanosomes, which cause trypanosomiasis, are hemoflagellate protozoans of the class Zoomastigophorea and family Trypanosomatidae. The disease has been arbitrarily divided into American and African forms of disease,…
Cardiovascular Infections
Chapter 86 Cardiovascular Infections Clay A. Calvert and Justin D. Thomason Bacteremia Bacteremia indicates the presence of bacteria in the blood, and although a presumptive diagnosis can be offered on…
Cryptosporidiosis and Cyclosporiasis
Chapter 81 Cryptosporidiosis and Cyclosporiasis Valeria Scorza and Michael R. Lappin Cryptosporidiosis Etiology and Epidemiology Cryptosporidium is a ubiquitous coccidian genus in the phylum Apicomplexa, class Conoidasida, suborder Eimeria, family…
Pneumocystosis
Chapter 66 Pneumocystosis Remo Lobetti Etiology Pneumocystis carinii, the etiologic agent of pneumocystosis, occurs worldwide and infects virtually all mammalian species, including humans. Pneumocystis is a saprophyte of low virulence…
Mycobacterial Infections
Chapter 48 Mycobacterial Infections Mycobacterial infections are caused by bacteria that belong to the family Mycobacteriaceae, order Actinomycetales. Mycobacterium is a genus comprising morphologically similar, aerobic, non-spore-forming, nonmotile, pleomorphic bacterial…
