Haemophilus and Histophilus species
Chapter 26 Haemophilus and Histophilus species Genus Characteristics There have been a number of recent name changes to members of the Haemophilus genus. The species Histophilus somni now encompasses the…
The pathogenic Zygomycetes
Chapter 42 The pathogenic Zygomycetes Zygomycosis (older term phycomycosis) is an all-embracing term for an infection due to a fungus in the taxonomic Class Zygomycetes, phylum Zygomycota. Most of these…
Aeromonas, Plesiomonas and Vibrio species
Chapter 19 Aeromonas, Plesiomonas and Vibrio species Genus Characteristics The genus Aeromonas is a member of the family Aeromonadaceae, in the class Proteobacteria. The genus has undergone a number of…
Non-spore-forming anaerobes
Chapter 15 Non-spore-forming anaerobes The non-sporing obligate anaerobes constitute a large, diverse group of Gram-positive and Gram-negative bacteria that exist in the environment but also as commensals on mucous membranes…
Mycotoxins and mycotoxicoses
Chapter 44 Mycotoxins and mycotoxicoses Although moulds can grow on a wide range of organic matter including growing crops and stored feed, those of greatest significance in veterinary medicine produce…
Pseudomonas, Burkholderia and Stenotrophomonas species
Chapter 18 Pseudomonas, Burkholderia and Stenotrophomonas species Genus Characteristics The genus Pseudomonas was originally organized into five major species clusters (rRNA homology groups). However, this classification has undergone revision and…
Fungi causing subcutaneous mycoses
Chapter 43 Fungi causing subcutaneous mycoses The subcutaneous mycoses are all transmitted in a similar manner. Fungi that are normally saprophytes in soil, vegetable debris, water or on plants become…
Actinobacillus species
Chapter 20 Actinobacillus species Genus Characteristics The genus Actinobacillus is within the Pasteurellaceae family, along with genera such as Pasteurella, Haemophilus, Histophilus and Mannheimia. The genus consists of many species…
Listeria species
Chapter 12 Listeria species Genus Characteristics The genus Listeria belongs to the Listeria-Brochothrix family which is a subline within the Clostridium subdivision. Six species form the genus Listeria: L. monocytogenes,…
The dimorphic fungi
Chapter 41 The dimorphic fungi The dimorphic fungi present two growth forms, a mould when growing saprophytically in the environment or when on culture media at 25–30°C, and a yeast…
