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Thread: Rat Bite

  1. #1
    Anonymous is offline Unregistered Guest
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    Rat Bite

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    A 4-year-old child living in a slum is bitten by a rat while sleeping. Two
    days later, the child develops a rash characterized by discrete
    erythematous 1-4 mm macules on the extremities and face, most obvious
    on the palms and soles. Which of the following organisms is the most
    likely cause of this child's disease?
    A. Borrelia burgdorferi
    B. Pseudomonas mallei
    C. Pseudomonas pseudomallei
    D. Spirillium minus
    E. Streptobacillus moniliformis


















    ans:
    The correct answer is E. The child has "rat-bite fever." This occurs in two forms with somewhat similar clinical manifestations. The form this child has is the Haverhill fever form, caused by Streptobacillus moniliformis and characterized by a short (often 1-3 days) incubation period. The Haverhill form is more common in the United States than the Sodoku form, which is caused by Spirillium minus, has a 1-4 week incubation period, and is most prevalent in Japan. One of the problems with diagnosing these diseases is that the victims are usually young children, and the bite site may be inapparent by the time the disease becomes severe enough for the child to be taken to a doctor.
    Borrelia burgdorferi (choice A) causes Lyme disease, which is characterized by an expanding erythematous rash, arthralgias, and eventual nervous system involvement.
    Pseudomonas mallei (choice B) causes glanders, which generally affects horses or humans in close contact with equines.
    Pseudomonas pseudomallei (choice C) causes melioidosis, a rare pulmonary disease found mostly in Southeast Asia.
    Spirillium minus (choice D) causes the Sodoku form of rat-bite fever.

  2. #2
    Anonymous is offline Unregistered Guest
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    I've some qs to ask

    Hi Step1, I was watching you for last couple of days. I've some qs(unsolved), it would be great if I know the ans. As these are imp one. I can't email all those. What I can do is I can copy in a floppy or Cd and mail that. Please let me know.

  3. #3
    Anonymous is offline Unregistered Guest
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    try this

    can you post them here so that we can all try to solve together? or maybe upload it in the download area? just some suggestions.

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