Multiple choice Which of the following infections is caused by a gram negative cocobacillus? Isosporiasis Kingella kingae infection Lassa fever Epidemic typhus Reveal answer Fill a bubble to check yourself B Correct answer Explanation Kingella kingae infection is caused by a gram negative cocobacillus. Kingella kingae causes spondylodiscitis in children under 3 years of age, osteomyelitis in healthy children, and RTI and UTI in immunocompromised adults.