A child presents with sepsis. Bacteria isolated showed beta hemolysis on blood agar, resistance to bacitracin, and a positive CAMP test. The most probable organism causing infection is:
Correct Answer: S. Agalacitae
Description: Streptococcus agalactiae is a group B hemolytic streptococci. They are normal flora of the female genital tract and an impoant cause of neonatal sepsis and meningitis. They hydolyze sodium hippucrate, typically beta hemolytic, gives a positive response to cAMP (Christie, Atkins and Munch-Peterson) and resistant to bacitracin. Ref: Medical Microbiology By William L. Irving, Dlawer A. A. Ala'Aldeen, Tim Boswell, Pages 117 - 9; Textbook of Microbiology By Ananthanarayan, 8th Edition, Page 206, 215; Jawetz, Melnick and Adelberg's Medical Microbiology, 23rd Edition, Page 235.
Category:
Microbiology
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