|
''Pasteurella canis'' is a Gram-negative, nonmotile, penicillin-sensitive coccobacillus belonging to the Pasteurellaceae family. Bacteria from this family cause zoonotic infections in humans. These infections manifest themselves as skin or soft tissue infections after an animal bite. It has been known to cause serious disease in immunocompromised patients. ''Pasteurella'' was first described around 1880 and thought to be associated with chicken cholera and hemorrhagic septicemia in animals. The genus was first cultured in 1885. In 1920, strains of ''Pasteurella'' were isolated and observed in human infections.〔 ==Nomenclature== “''Micrococcus gallicidus''” was the first scientific name used for these bacteria. For a short period of time, the bacteria were unofficially placed in different genera, such as ''Octopsis'', ''Coccobacillus'', and ''Eucystia''. In 1887, genus “''Pasteurella''” was proposed to honor Louis Pasteur for his critical discoveries in the field of microbiology.〔 Before molecular technology was available, species were often labeled based on staining and the hosts from where species were isolated.〔 The name "''multocida''" was ultimately adopted to represent all the ''Pasteurella'' species.〔 Until 1932, the genus ''Pasteurella'' only consisted of the species type ''Pasteurella multocida''.〔 ''Pasteurella canis sp. nov.'' was previously classified as ''P. multocida'' biotype 6 or “dog type” strains. In 1985, ''Pasteurella'' underwent taxonomic reclassification based on DNA hybridization, resulting in several subspecies of ''P. multocida'' and new ''Pasteurella'' species, including ''P. canis''.〔 ''P. canis'' includes two biotypes: biovar 1 is originated from canine, whereas biovar 2 is originated from bovine. The two biotypes are distinguishable from an indole test: biovar 1 is indole positive whereas biovar 2 is indole negative.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pasteurella canis」の詳細全文を読む スポンサード リンク
|