Which of the following was an emerging mosquito-borne disease in the early 2000s but has now ...

Which of the following was an emerging mosquito-borne disease in the early 2000s but has now decreased in frequency?
 
  A) malaria
  B) Rocky Mountain spotted fever
  C) typhus
  D) West Nile fever

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Hantavirus pulmonary syndrome is a viral respiratory disease caused by contact with
 
  A) rat fleas.
  B) rodents.
  C) mosquitoes.
  D) bats.

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Which disease(s) has/have been mistakenly diagnosed as measles or scarlet fever due to similarities in rash appearance?
 
  A) Lyme disease
  B) Q fever
  C) rickettsial diseases
  D) typhus

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Which rickettsial disease can lead to endocarditis?
 
  A) Q fever
  B) typhus
  C) Rocky Mountain spotted fever
  D) scrub typhus

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Rickettsial disease detection/identification includes which of the following?
 
  A) latex bead agglutination assays
  B) ELISA
  C) PCR assays
  D) latex bead agglutination assays, ELISA, and PCR assays