Bartonella rochalimae
The bacterium was first found in a 43-year-old American woman. She was in Peru when she became very sick. She had a high fever, anemia and insomnia.  The illness was thought to be Bartonella bacilliformis, a similar bacteria that causes Oroya fever. The scientists later discovered that a new species of bacteria had caused the illness. They gave the patient some antibiotics. Her condition later improved.