Bacteriology Part V Flashcards
Pathogenic Bacteria
- Gram Positive (rods/cocci),
- Gram Negative (rods/cocci-rare)
- Spirohetes- have endoflagella
- Mycoplasma- no cell wall
- Mycobacteria- have mycolic acid, acid fast stain positive
- chlamydia/rickettsia-intracellular bacteria
Staphylococcus cause disease in which main animals?
- Mastitis in cows
- dermatitis in dogs
- greasy pig disease in young pigs
Staphylococcus attacks what parts of the body?
skin and mucous membranes
Staphylococcus causes what physical problems?
- abscesses
- suppurative infections
- post surgical infections
- coagulates blood plasma
Staphylococcus has what superantigen? endo or enterotoxin?
Enterotoxin A-E (causes food poisoning)
Caseous lymphadenitis is caused by what bacteria?
Corynebacterium pseudotuberculosis
What is caseous lymphadenitis?
abscess formation in peripherial lymph nodes
what is Listeriosis?
- Gram positive
- intracellular bacterium
- food borne pathogen
- uses host actin filaments to travel through cells
Types of Clostridium: (6)
- C. tetani Tetanus
- C. septicum Malignant edema
- C. chauvoei Black Leg
- C. perfringens Enterotoxemia
- C. novyi Black disease
- C. botulinum Botulism
Clostridium tetani
infects surgical/ puncture wounds
causes spastic paralysis (lock jaw)
muscles stay contracted
seen in horses
Clostridium Botulinum
cause flaccid paralysis
not an infection but an intoxication
muscles always relaxed
E. coli
edema in piglets
hemorrhagic enteritis in humans
colic in neonatal calves
kidney failure
Salmonella
Gastroenteritis and systemic diseases
Salmonella causes what in who?
dublin- cattle
typhoid fever- humans
enteritis-chickens
Bacillus anthracis
- gram positive rods that produce endospores, exotoxin, and capsule
- has 3 separate proteins coded on one plasmid
- edema/lethal factor
- protective antigen
