Spread via mucous or saliva (usually children) â Fever and sore throat; rash on the hands, feet, mouth, and tongue, caused by enterovirus
Hand foot mouth disease
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5
An eight-year-old girl has scabs and pus-filled vesicles on her face and throat. Three weeks earlier she had visited her grandmother, who had shingles. What infection does the eight-year-old have?
chickenpox
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15
What perspiration factors discourage microbial growth?
salt in sweat inhibits many microorganisms; lysozyme is capable of breaking down the cell walls of certain bacteria and antimicrobial peptides
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banana
Go to last place!
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gold
Win 50 points!
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shark
Other team loses 25 points!
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banana
Go to last place!
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thief
Give points!
5
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25
star
Double points!
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shark
Other team loses 15 points!
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thief
Give points!
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25
The patient has scaling skin on his fingers. Conidiospores are seen in microscopic examination of skin scrapings. The etiology is
micosporum
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20
You are examining a scraping of an infected cornea under the brightfield microscope and see eukaryotic cells. This is probably a case of
Acanthomoeba keratitis.
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20
caused by unsanitary contact lenses; mild inflammation followed by severe pain; treatment with propamidine isethionate and neomycin; may require corneal transplants
Acanthamoeba keratitis
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15
A 9-month-old baby with a macular rash is brought to the hospital. Parents report that the rash started on the face, spread to the rest of the body, and was preceded by cold-like symptoms. There are small reddish spots in the baby's mouth.
rubeola
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10
What bacterial species features the virulence factor M protein?
Streptococcal sp.
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20
How might penicillin use result in candidiasis?
penicillin suppresses growth normal microbiota, Candida will be opportunistic; Candida is not affected by penicillin, allowing the fungus to multiply freely
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20
Several individuals who frequently swim at a local community pool have developed infections. Some have developed a skin rash and others have developed a painful infection of the outer ear canal. What is the most likely etiologic agent?
Pseudomonas aeruginosa
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10
You have a culture of bacteria that you suspect is either Staphylococcus aureus or Streptococcus pyogenes. Is there any morphological difference between the two?
Yes. Microscopically, S. aureus typically forms gram-positive cocci in clusters, whereas S. pyogenes forms gram-positive cocci in chains.
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5
Are skin bacteria more likley to be gram (-) or gram (+) ?
Gram (+)
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15
A 35-year-old woman has a red, raised rash on the inside of her thighs. Gram-stained skin scrapings show large budding cells with pseudohyphae. The infection is caused by