Rocky Mountain spotted fever
A. is seen in highest numbers along the west coast.
B. is transmitted by Ixodes ticks.
C. has symptoms that include fever, headache and rash.
D. never has severe complications.
E. All of the choices are correct.
Ans: C. has symptoms that include fever, headache and rash.
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What are the functions of helper T cells?
What will be an ideal response?