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…
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…
Chapter 58 Histoplasmosis Catharina Brömel and Craig E. Greene Etiology The etiologic agent of American histoplasmosis is the soilborne, dimorphic fungus Histoplasma capsulatum. This organism can survive wide fluctuations in…
Chapter 60 Coccidioidomycosis and Paracoccidioidomycosis Russell T. Greene Coccidioidomycosis Etiology Coccidioidiomycosis is a disease caused by two distinct species of Coccidioides that can accurately be distinguished by genetic analysis. This…
Chapter 94 Immunodeficiencies and Infectious Diseases Urs Giger and Jo Smith Immunodeficiencies are a large heterogeneous group of hereditary and acquired disorders of host immunity that can be associated with…
Chapter 82 Neurologic Diseases of Suspected Infectious Origin and Prion Disease The conditions described in this chapter are suspected to be caused by insidious infectious agents or immune aberrations in…
Chapter 20 Rabies and Other Lyssavirus Infections Craig E. Greene Etiology Rabies Rabies virus is the prototype of the genus Lyssavirus in the family Rhabdoviridae.89 These agents are enveloped, bullet-shaped…
Chapter 46 Francisella and Coxiella Infections Craig E. Greene Tularemia Etiology Tularemia is an acute bacterial infection of many avian and mammalian species, including dogs and cats and occasionally people….
Chapter 47 Actinomycosis and Nocardiosis Jane E. Sykes Actinomycosis Etiology and Epidemiology Actinomycosis is a slowly progressive infection characterized by pleural and peritoneal exudates, dense fibrous masses, frank abscesses, meningoencephalitis/meningitis,…
Chapter 33 Gram-Positive Bacterial Infections Streptococcal Infections Craig E. Greene and John F. Prescott Streptococci are gram-positive, nonmotile, facultatively anaerobic cocci that cause localized to widespread pyogenic infections in animals…
