Gram-Positive rods continuation

What are the biochemical features of erysipela (erysiopelothrix rhuisoptjiae)?

Catalase negative, Produces H₂S on TSI., and Non-motile, non-spore forming, non-acid-fast 

What are the sources of reservoirs of erysipela (erysiopelothrix rhuisoptjiae)?

soil and swine farms

What are the primary species effected by erysipela (erysiopelothrix rhuisoptjiae)?

swine and turkeys

What are the 4 forms of erysipela (erysiopelothrix rhuisoptjiae) in swine?

cute septicemia, diamond-shaped cutaneous lesions, vegetative endocarditis, and arthritis

What are the clinical signs of erysipela (erysiopelothrix rhuisoptjiae) in sheep?

polyarthritis and joint illness in lambs

What are the clinical signs of erysipela (erysiopelothrix rhuisoptjiae) in dogs?

rheumatoid arthritis and hear valve endocarditis

What are the clinical signs of erysipela (erysiopelothrix rhuisoptjiae) in humans?

local wound infections that lead to septicemia or joing and heart calve infection

What are the most of transmission for erysipela (erysiopelothrix rhuisoptjiae)?

Oral, cutaneous, and respiratory exposure

What is the major virulence factor of erysipela (erysiopelothrix rhuisoptjiae)?

Neuraminidase enzyme

What is the pathogenicity of neuraminidase enzyme from erysipela (erysiopelothrix rhuisoptjiae)?

removes sialic acids from many substrates

What is the appropriate vaccine against erysipela (erysiopelothrix rhuisoptjiae)?

erysipelas vaccine (avirulent)

What is the appropriate treatment against erysipela (erysiopelothrix rhuisoptjiae)?

penicillin

What are the descriptive factors of rhodococcus/corynebacterium?

Catalase positive , Cell wall antigens (mycolic acid), Pleomorphic club-shaped rod, Cell may remain attached on one side following division, resulting in L and V arrangement (Chinses letter) or palisades (picket fence) 

What are the two major forms of diease in foals from rhodococcus equi?

Suppurative bronchopneumonia with extensive lung abscessation and Ulcerative enteritis and mesenteric lymphadenitis.

Where does Rhodococcus equi  thrive?

soil contaminated with faces from horses or other herbicores

What is the mode of transmission of Rhodococcus equi ?

Inhalation of dust in heavily contaminated environments  and Swallowing infected sputum 

What is the pathogenesis of Rhodococcus equi ?

Facultative intracellular organism  that enters, survives, and replicates in alveolar macrophages.

What are the know virulence factors of Rhodococcus equi?

Capsular polysaccharide, Cholesterol oxidase and phospholipase, Cell wall mycolic acid, and Plasmid-encoded VapA protein

What are the host factors in foals of Rhodococcus equi?

Low IFN-γ production and decline in colostral antibody