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Old 01-03-2012
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Virus Rodents in farm and a viral infection!

This 70-year-old woman, who lives in a rural area in the midwestern United States, developed an illness in August that progressed over 3 days to include a moderate fever, headache, lower extremity weakness, and lethargy progressing to severe confusion.
On examination, she is unresponsive to verbal stimuli, and both pupils respond sluggishly to light. No other neurologic abnormalities are apparent. She lives with her husband on an old farm, and rodents have been frequently seen around the house and barn.
Which one of the following would be the most probable viral cause

A. Western equine encephalitis
B. California (La Crosse strain) encephalitis virus
C. Colorado tick fever virus
D. West Nile encephalitis virus
E. Lymphocytic choriomeningitis virus


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  #2  
Old 01-03-2012
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Wer r tes q from?
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Old 01-05-2012
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taken from pre test
West Nile virus is antigenically related to St. Louis encephalitis and Japanese encephalitis. Transmission is from infected mosquitoes to birds, humans, and horses, and clinical illness leading to death can result from infections in any of these hosts. Transmission among humans via blood transfusions, breast milk, or organ transplants is also possible. Crows are particularly affected; virus has been detected in dead crows found as far south as Florida, and more recently in the midwestern United States. Clinical illness in the United States has often included muscle weakness and flaccid paralysis, suggesting an axonal polyneuropathy in addition to encephalitis. The paralysis can be asymmetric and permanent.
Dead crows often herald spread of virus in nature


Muscle weakness and flaccid paralysis can occur
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Old 01-05-2012
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Quote:
Originally Posted by scopusmount View Post
taken from pre test
West Nile virus is antigenically related to St. Louis encephalitis and Japanese encephalitis. Transmission is from infected mosquitoes to birds, humans, and horses, and clinical illness leading to death can result from infections in any of these hosts. Transmission among humans via blood transfusions, breast milk, or organ transplants is also possible. Crows are particularly affected; virus has been detected in dead crows found as far south as Florida, and more recently in the midwestern United States. Clinical illness in the United States has often included muscle weakness and flaccid paralysis, suggesting an axonal polyneuropathy in addition to encephalitis. The paralysis can be asymmetric and permanent.
Dead crows often herald spread of virus in nature


Muscle weakness and flaccid paralysis can occur
Whats the thing mentioned about rodents in the stem got to do with the answer?
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