Talaros Foundations in Microbiology FINAL Quiz Test
Bank with Question and Answers GRADED A+ 2023
Staphylococcal aureus - description correct answers
... [Show More] Bacterium
Gram +
non motile
facultative-aerobe
round /cluster
Staphylococcal aureus - diagnosis correct answers culture and sensitivity.
Staphylococcal aureus - virulence correct answers hyaluronidase: destroy host tissue
staphylokinase: digest blood clots
lipase: colonize oily skin
penicillinase: penicillin resistance
leukocidins: kill neutrophils and macrophages
hemolysins: lyse RBCs
enterotoxins: → gastroenteritis
exfoliative toxins: → skin peeling
Staphylococcal aureus - target infections correct answers Skin infections and food poisoning
Abscesses cellulitis, pneumonia, toxic shock syndrome, bacteremia., MRSA. Untreated causes death.
Staphylococcal aureus - transmission correct answers contact, open wound, skin, fomites.
Staphylococcal aureus - treatment correct answers penicillin
Streptococcus pyogenes - description correct answers bacterium
Gram +
non motile
facultative-aerobe
spherical/chains
Endospores
capsules/slime layers.
Streptococcus pyogenes - diagnosis correct answers Beta hemolytic in blood agar test.
Streptococcus pyogenes - virulence correct answers hyaluronic acid capsule: prevent immune response
slime layers: prevent phagocytosis
fimbriae: adherence
hemolysins: damage leukocytes
erythrogenic toxin: fever, bright red rash
Streptococcus pyogenes - target infections correct answers Respiratory tract, blood stream or skin.
Strep throat , scarlet fever, septecemia, toxic shock syndrome.Impetigo, necrotizing fascitis (flesh eating bacteria).
Streptococcus pyogenes - transmission correct answers contact
droplets
food
fomites
Streptococcus pyogenes - treatment correct answers penicillin
erythromycin
cephalosporin
Streptococcus pneumonia - description correct answers bacterium, non-motile,
facultative aerobe,
Gram +
cocci, diplococci, lancet, short chains
Streptococcus pneumonia - diagnosis correct answers sputum, wbc's, count
Streptococcus pneumonia - virulence correct answers thick capsule: prevent phagocytosis
Streptococcus pneumonia - target infections correct answers pneumonia, meningitis
Lungs
→ sepsis, bacteremia, pleural effusion, lung abscess.
Streptococcus pneumonia- transmission correct answers droplets, contact
Streptococcus pneumonia- treatment correct answers penicillin,
cephalosporins.
sulfonamides,
quinolones,
Neisseria meningitidis - description correct answers Bacterium
obligate parasite
Gram -
flattened cocci, diplococci, meningococci,
non-motile
aerobe
Neisseria meningitidis - diagnosis correct answers gram stain
diplococci in CSF, blood or nasopharyngeal sample
cultures for differentiation.
Neisseria meningitidis - virulence correct answers capsule
adhesive fimbriae
endotoxins
IgA protease
Neisseria meningitidis - target infections correct answers Meningococcemia:
Meningitis
refers to inflammation of the meningesbacteria attaches to mucosa and enter the bloodstream.
Neisseria meningitidis - transmission correct answers Person to person, spread by exchanging respiratory and throat secretions during close, usually coughing or kissing. Droplets.
Neisseria meningitidis - treatment correct answers Cephalosporin 3rd generation that crosses blood brain barrier. Prevention for people who come in close contac with infected people. Vaccinations MCV4, MPSV4.
Clostridium perfringens- description correct answers bacterium, +, rod shape, anaerobic, spore forming pathogenic, non motile. Food borne illness, bacteria produces toxins causing food poisoning, often mistaken for 24 hour flu.
Clostridium perfringens - diagnosis correct answers mCP and TSC agar [Show Less]