A 32 year old pregnant woman at 29 weeks gestation presents with fever, myalgias, and diarrhea after eating unpasteurized soft cheese. Two days later she develops headache and neck stiffness. Cerebrospinal fluid shows elevated opening pressure, elevated protein, low glucose, and neutrophilic pleocytosis. Which of the following properties is most characteristic of the causative organism?
- A)Production of urease and growth in acidic stomach environment
- B)Intracellular motility via actin polymerizationGABARITO
- C)Acid fast cell wall rich in mycolic acids
- D)Formation of pseudohyphae and budding yeast
- E)Polysaccharide capsule visualized with India ink
Explicação
Intracellular motility via actin polymerization is correct. Listeria monocytogenes is a facultative intracellular gram positive rod that spreads cell to cell using actin rockets and is an important cause of meningitis in neonates, pregnant women, and the elder... Ver explicação completa e trilha adaptativa →