Microbiology A female patient with signs of meningitis and CSF showing gram positive cocobacilli, which is showing characteristic tumbling motility. Diagnosis is A Listeria B Meningococcus C H. influenzae D Pneumococcus 💡 Explanation A female patient with signs of meningitis and CSF showing gram positive cocobacilli, which is showing characteristic tumbling motility. Diagnosis is ✓ Correct Answer: A. Listeria