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?
Borrelia burgdorferi Streptobacillus moniliformis Pseudomonas mallei Pseudomonas pseudomallei