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Chapter 19 Lecture 8 (Superficial Mycoses (Pathogenesis and epidemiology,…
Chapter 19 Lecture 8
Superficial Mycoses
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Occur on the hair, nails, and outer skin layers
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Diagnosis, treatment, and prevention
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Rubella
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Signs and symptoms
Children develop a mild rash (flat, pink to red spots (macules)
Adults, more severe, may develop arthritis and encephalitis
Congenital infection can result in birth defects or death of the fetus (cardiac abnormalities, deafness, blindness, mental retardation, microcephaly, and growth retardation- Death of a fetus is also common
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Diagnosis, treatment, and prevention
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Measles (Rubeola)
Signs and symptoms
Characterized by Koplik’s spots,
(crystals of salt surrounded by a red halo, lasting one to two days) fever, sore throat, HA, dry cough, and conjunctivitis
Subacute sclerosing panencephalitis is a rare complication causing personality changes, loss of memory, muscle spasms, blindness and even death.
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Epidemiology
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More than 80% of unvaccinated pts who are exposed to the virus will develop symptoms 8-14 days laters
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Diagnosis, treatment, and prevention
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Treatment involves administration of vitamin A, antibodies against measles, and ribavirin
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Mycoses of the Hair, Nails, and Skin
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Other Viral Rashes
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Roseola
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Characterized by a rose-colored rash on the face, neck, trunk, and thighs. fever, sore throat, and enlarged lymph nodes
Some researchers have linked HHV-6 with the development of MS in adults, and also makes people more susceptible to HIV infection and AIDs
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