NBME 22 Does anyone else in the family have an itchy rash like this? (NBME Answers)

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NBME 22 Answers

nbme22/Block 1/Question#22 (reveal difficulty score)
A previously healthy 6-year-old boy is ...
Does anyone else in the family have an itchy rash like this? 🔍 / 📺 / 🌳 / 📖
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submitted by ∗welpdedelp(270)

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It was scabies, which is transmitted person-operon.

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welpdedelp **person-person lol +9

suckitnbme NBME loves their scabies +23

dentist did you get scabies from "burrows" and "night itching" +1

pg32 My question is where do you get scabies originally? I knew it was transmitted person-to-person, but thought it has to originate somewhere (a pet possibly?) so I went with pets. The internet only seems to say that you get scabies from another person with scabies, so the question remains: where do people contract scabies from? +1

leaf_house @pg32 , long quote: + "Sarcoptes scabiei mites seek the source of stimuli originating from the host when they are off the host but in close proximity to it. This behavior may facilitate their finding a host if they are dislodged from it and contaminate the host environment. Thus, direct contact with an infested host may not be required for humans and other mammals to become infected with S. scabiei. In the case of human scabies, live mites in bedding, furniture, toys, and clothing can be a source of infection. Sarcoptes scabiei var. hominis have been recovered from laundry bins in a nursing home." + from here: https://parasitesandvectors.biomedcentral.com/articles/10.1186/s13071-017-2234-1 +1

zevvyt to summarize leafhouse: Fomites +3

surfacegomd FA 2020 p.161 "transmission through skin-to-skin contact (most common) or via fomites" +1

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submitted by ∗rockodude(39)

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when we were in our derm block our course director said that on boards, burrows=scabies every freaking time

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chaosawaits You sonofabitch, I'm in +

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submitted by bmd12(6)

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You think scabies bc they say he has severe itching esp. NIGHT, burrows was another hint, with scabies commonly seen in armpits, chest, wrist, groin (basically areas with frequent skin to skin contact, minus the face). I cant seem to find where one can originally contract scabies, to spread it person to person though. The internet just emphasizes that its contracted via person to person contact

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