A mother brings her lethargic, feverish 2-year old child int…
A mother brings her lethargic, feverish 2-year old child into the emergency department. The baby is diagnosed with meningitis and the doctor does a spinal tap. The direct smear of the cerebrospinal fluid (CSF) shows many tiny gram-negative rods. The culture revealed that nothing grew on blood or MacConkey agars, but small, translucent colonies grew on Chocolate agar. What is the most probable identification of this organism?