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
Candida albicans
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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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Virus- Mild flulike symptoms; โslapped-cheekโ facial rash; also known as erythema infectiosum
parvovirus (Human parvovirus B19)
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What bacterial species features the virulence factor M protein?
Streptococcal sp.
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caused by HSV-1; infection of the cornea with deep ulcers; may be the most common cause of infectious blindness in the U.S
herpetic keratitis
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How did the odd naming of "fifth disease" arise?
It is the fifth disease on a list of skin rash diseases (Measles, scarlet fever, rubella, Filatov Dukes' disease, Erythema infectiosum or fifth disease)
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What test could you preform to differentiate between staphylococcal skin infections?
Coagulase test
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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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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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Furuncles, toxic shock syndrome, and scalded skin syndrome all are caused by which bacteria?
Staphylococcus aureus
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Spread via mucous or saliva (usually children) โ Fever and sore throat; rash on the hands, feet, mouth, and tongue, caused by enterovirus
Hand foot mouth disease
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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?