22b - Individual Bacteria of RT and Notable Features

Question 1

Streptococcus pyogenes

• Morphology
• Disease
• Important Virulence Factors
• Vaccine

Answer 1

Morphology: Gm + cocci in chains

Disease: strep throat, scarlet fever

Important Virulence Factors: B hemolytic, hyaluronic capsule, M protein

Vaccine: No

Question 2

Streptococcus pneumoniae

• Morphology:
• Disease:
• Important Virulence Factors:
• Vaccine:

Answer 2

Morphology: Gm+ cocci diplococci

Disease: otitis media, sinusitis, pneumonia

Important Virulence Factors: alpha hemolytic, polysaccharide capsule, pneumolysin

Vaccine: yes

Question 3

Staphylococcus aureus

• Morphology:
• Disease:
• Important Virulence Factors:
• Vaccine: ​

Answer 3

Morphology: Gm + cocci in clusters

Disease: upper RT infections, pneumonia

Important Virulence Factors: polysaccharide capsule, protein A, lots of toxins

Vaccine: No

Question 4

Neisseria meningtidis

Morphology:

Disease:

Important Virulence Factors:

Vaccine:

Answer 4

Morphology: Gm - diplococci

Disease: pharyngitis, pneumonia

Important Virulence Factors: polysaccharide capsule pilin, makes endotoxin

Vaccine: Yes

Question 5

Haemophilus influenzae

Morphology:

Disease:

Important Virulence Factors:

Vaccine:

Answer 5

Morphology: Gm - pleomorphic, short rods

Disease: otitis media, sinusisits, penumonia

Important Virulence Factors: nonencapsulated and encapsulated, several adhesins

Vaccine: Yes

Question 6

Mycobacterium tuberculosis

Morphology:

Disease:

Important Virulence Factors:

Vaccine:

Answer 6

Morphology: Acid-Fast Rods

Disease: Tuberculosis

Important Virulence Factors: Acute/Latent infections, lipid rich cell envelope

Vaccine: Yes

Question 7

Legionella pneumophilla

Morphology:

Disease:

Important Virulence Factors:

Vaccine:

Answer 7

Morphology: Gm- rods

Disease: Legionairre’s disease and Pontiac Fever

Important Virulence Factors: Opportunistic, numerous enzymes

Vaccine: No

Question 8

Pseudomonas aeruginosa

Morphology:

Disease:

Important Virulence Factors:

Vaccine:

Answer 8

Morphology: Gm - rods

Disease: Otitis media, pneumonia

Important Virulence Factors: opportunistic, numerous enzymes, forms biofilms

Vaccine: No

Question 9

Mycoplasma pneumoniae

Morphology:

Disease:

Important Virulence Factors:

Vaccine:

Answer 9

Morphology: Does not stain, pleomorphic shape

Disease: Tracheobronchitis, pneumonia

Important Virulence Factors: Lacks cell wall, P1 adhesin

Vaccine: No

Question 10

Corynebacterium diptheriae

Morphology:

Disease:

Important Virulence Factors:

Vaccine:

Answer 10

Morphology: Gm + rods in club or V shape

Disease: Diptheria, pseudomembrane in RT

Important Virulence Factors: Diptheria toxin, local and systemic infection

Vaccine: Yes

Question 11

Bordetella pertussis

Morphology:

Disease:

Important Virulence Factors:

Vaccine:

Answer 11

Morphology: Gm - pleomorphic, coccobacillus

Disease: Pertussis

Important Virulence Factors: Pertussis toxin, pertactin, FHA, fimbriae

Vaccine: Yes