W04_05 Intro to bacteriology II

Question 1

reservoir for staph. aureus?

Answer 1

skin (axillae, perineum), nares

Question 2

how virulent is staph aureus?

Answer 2

very.

Question 3

what’s the most common disease of staph aureus?

Answer 3

skin/soft tissue infections (abscesses)

Question 4

what are the most serious diseases of staph aureus?

Answer 4

bacteremia and endocarditis and toxic shock and pneumonia

Question 5

reservoir for coag-neg staphylococci?

Answer 5

skin

Question 6

which staphylococcus is predisposed to UTIs?

Answer 6

s. saprophyticus

Question 7

reservoir for streptococcus pyogenes (group A strep)?

Answer 7

skin, pharynx

Question 8

mode of transmission for streptococcus pyogenes (group A strep)?

Answer 8

contact, droplet

Question 9

what are the diseases of streptococcus pyogenes (group A strep)?

Answer 9

pharyngitis, skin/soft tissue infections (impetigo, erysipelas, nec. fasc.), bacteremia, toxic shock, septic arthritis, rheumatic fever, glomerulonephritis

Question 10

reservoir for strep.pneumoniae?

Answer 10

oral-pharyngeus

Question 11

virulence for strep.pneumoniae?

Answer 11

capsule, autolysin, pneumolysin, protein A

Question 12

diseases of strep pneumoniae?

Answer 12

pneumonia, sinusitis, otitis media, meningitis, bacteremia

Question 13

reservoir for enterococcus spp?

Answer 13

GI tract

Question 14

virulence factors for enterococcus spp?

Answer 14

adhesin, hemolysin in some

Question 15

disease of enterococcus spp?

Answer 15

UTI, intra-abdominal infections

Question 16

reservoir for e.coli?

Answer 16

GI tract

Question 17

virulence of e.coli?

Answer 17

fimbriae, hemolysin, flagella, cytotoxin, enterotoxin

Question 18

disease of e.coli?

Answer 18

UTI, hospital pneumonia, intra-ab infections, gastroenteritis/HUS

Question 19

reservoir for enteric pathogens?

Answer 19

GI tract

Question 20

reservoir for haemophilus influenzae?

Answer 20

oral pharynx

Question 21

virulence of haemophilus influenzae?

Answer 21

capsule, IgA protease

Question 22

reservoir for neisseria meningiditis

Answer 22

oral pharynx

Question 23

mode of transmission for n. meningiditis?

Answer 23

contact, droplet

Question 24

virulence factors of n. meningiditis?

Answer 24

capsule, IgA protease, endotoxin

Question 25

reservoir for neisseria gonorrhoeae?

Answer 25

genital tract

Question 26

mode of transmission for n. gonorrhoeae

Answer 26

contact

Question 27

diseases of n. gonorrhoeae?

Answer 27

cervicitis, urethritis, pharyngitis, pelvic inflammatory disease (females), disseminated gonococcemia

Question 28

reservoir of chlamydia trachomatis?

Answer 28

genital tract

Question 29

big virulence factor of chlamydia trachomatis?

Answer 29

intracellular survival

Question 30

reservoir of clostridium spp?

Answer 30

soil (tetani, botulinum, perfringens),

hospital/GI tract (c. difficile)

Question 31

mode of transmission for clostridium spp?

Answer 31

contact

Question 32

virulence factor for clostridium spp?

Answer 32

spores, exotoxins

Question 33

what causes gas gangrene?

Answer 33

clostridium perfringens

Question 34

reservoir of bacteroides spp?

Answer 34

GI tract

Question 35

mode of transmission for bacteroides spp?

Answer 35

contact

Question 36

spectrum of disease for bacteroides spp?

Answer 36

intra-abdominal abscesses

Question 37

read the notes for comprehensive review

Answer 37

read the notes.