WGS 1001 Lecture Notes - Lecture 2: Microraptor, Confuciusornis, Archaeopteryx
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An 85-year-old man arrives one summer morning at the clinic of his Florida retirement community with severe headache, chills, muscle pain, and nausea. He reports that the symptoms developed quite suddenly. He has had no rash. During the interview the man states that he is a World War II veteran of the battle for Guadalcanal in the South Pacific, a golfer, and an avid bird watcher who spends many hours in the woods near his home. He had not noticed any fleas, ticks, or lice on his body, but he had been almost âeaten aliveâ by chiggers. His cat had a few fleas, but he had âgotten the little buggers.â He had not been out of the United States in 40 years.
Part A
What disease is this man most likely to have?
scrub typhus |
epidemic typhus |
endemic typhus |
anaplasmosis |
Part B
What vector is implicated in the spread of the disease in this clinical case?
body louse |
chigger |
cat flea |
Ixodes tick |
Part C
What is the treatment of choice for this disease?
acyclovir |
griseofulvin |
penicillin |
doxycycline |
Part D
What diagnostic test could be used to verify the diagnosis?
immunofluorescent antibody stain of a blood smear from this patient |
aerum creatinine test |
serum IgG antibodies to this disease agent |
Gram stain of blood |
Part E
How would you know if you were âeaten aliveâ by chiggers?
anemia |
intense swelling and blue discoloration of the lower legs |
difficulty breathing |
intense itching, especially of the feet and legs |