Bacteria Flashcards
What is the most common bacterial cause of strep throat?
Strep. Pyogenes
How is acute rheumatic fever prevented?
Treat GAS within 10 days
What is the species name for GAS?
S. Pyogenes
What is the species name for GBS?
S. Agalactiae
GAS & GBS are part of the ………. classification
Lancefield
What type of hypersensitivity is ARF?
Type 2
What type of hypersensitivity is Glomerulonephritis ?
Type 3
What does S. Pyogenes adhere to?
CD46 on keratinocytes of nasopharyngeal epithelium
What are the symptoms of ARF?
1) Carditis (pan)
2) Arthritis (poly + large)
3) Nodules (subcutaneous & no pus)
4) Erythema marginatum
5) Sydenham’s chorea
What is the GBS capsule made of?
Sialic acid
What is the pneumococcus capsule made of?
Polysaccharides
What is the causing toxin of scarlet fever?
Erythrogenic exotoxin
What is the causing toxin of STSS ?
Streptococcal pyrogenic exotoxin
What is the GAS capsule made of?
Hyaluronic acid
Which streptolysin is used in aerobic conditions?
Streptolysin S
What are the diseases causes by pneumococcus?
Meningitis (Acute + Pus)
Otitis media (In children)
Pneumonia
Sinusitis
What’s the most common cause of viral pneumonia?
Influenza & parainfluenza
What’s the most common cause of fungal acute pneumonia?
Candida albicans
What’s the type of vaccine used for Pneumococcus prevention
Conjugated
What streptococcus pyogenes antigen is the major spreading factor ?
Hyaluronidase
What is bacillus anthracis capsule made of?
Poly-D-Glutamic acid
What is the name of the disease caused by pulmonary bacillus anthracis?
Wool-sorter’s disease