Flashcards in Streptococcus Deck (39):
What is the shape of Streptococcus?
Cocci in chains
What is the oxygen requirement of Strep.?
What is the mode of locomotion of Strep?
Does Strep form spores
What is the catalase state of Strep
Where is Strep commensal?
Are Strep stable in the environment?
Virulence factors that assist with Strep. invasion
Streptokinase and hyaluronidase
Virulence factors that assist with adhesion
Virulence factors that assist with evasion
M protein, Hyaluronan, streptolysins
Virulence factors that are toxins
Strep/ pyrogenic exotoxins, lipoteichoic acid
Strep mode of entry
Upper resp. tract via purulent exudates or discharging abscesses
Streptococcus equi subsp. equi
Highly contagious febrile disease involving the upper respiratory tract with abscessation of regional lymph nodes
Which Strep species is NOT commensal?
S. equi equi
Which lymph nodes are affected by S. equi equi?
Submandibular and retropharangeal
Secondary infection to S. equi equi
Guttural pouch empyema
How is S. equi equi transmitted from host to host
Treatment for S. equi equi
Antibiotics are effective before abscess formation
What are Strangles vaccines given to pregnant mares trying to accomplish?
Maintain high levels of anti-M protein opsonizing antibodies in foals
Is Strangles a notifiable disease
Yes, in many states
Cause of significant production loss in the pig industry
Associated with meningitis, arthritis, septicemia, and bronchopneumonia in pigs
Where do pigs naturally carry S. suis?
Which S. suis serotype is the most predominant in the world?
Causes adult meningitis is humans in Asia
Prevention of S. suis
Good hygiene and husbandry practices
Contagious mastitis that colonizes the milk ducts
Obligate parasite of the mammary gland
Colonizes the buccal cavity, genitalia, and skin of the mammary glands to cause acute mastitis
Colonizes the skin, tonsils, and vaginal mucosa to cause subclinical mastitis
What is normal somatic cell count in cows' milk?
Opportunistic pathogen of broad range of animals that causes purulent infections
S. equi zooepidemicus
Streptococcal toxic shock syndrome and necrotizing fasciitis in dogs and cats (especially kittens and puppies)
Where is S. canis commensal in dogs and cats?
Skin and mucous membranes
Causes mild superficial skin diseases to life-threatening systemic disease
Called "flesh-eating bacterium"