Group B streptococcal infection causes

Streptococcus agalactiae
Scientific classification
Kingdom: Bacteria Phylum: Firmicutes Class: Bacilli Order: Lactobacillales Family: Streptococcaceae Genus: Streptococcus Species: S. agalactiae
Binomial name
Streptococcus agalactiae Lehmann and Neumann, 1896

WikiDoc Resources for Group B streptococcal infection causes
Articles
Most recent articles on Group B streptococcal infection causes Most cited articles on Group B streptococcal infection causes Review articles on Group B streptococcal infection causes Articles on Group B streptococcal infection causes in N Eng J Med, Lancet, BMJ
Media
Powerpoint slides on Group B streptococcal infection causes Images of Group B streptococcal infection causes Photos of Group B streptococcal infection causes Podcasts & MP3s on Group B streptococcal infection causes Videos on Group B streptococcal infection causes
Evidence Based Medicine
Cochrane Collaboration on Group B streptococcal infection causes Bandolier on Group B streptococcal infection causes TRIP on Group B streptococcal infection causes
Clinical Trials
Ongoing Trials on Group B streptococcal infection causes at Clinical Trials.gov Trial results on Group B streptococcal infection causes Clinical Trials on Group B streptococcal infection causes at Google
Guidelines / Policies / Govt
US National Guidelines Clearinghouse on Group B streptococcal infection causes NICE Guidance on Group B streptococcal infection causes NHS PRODIGY Guidance FDA on Group B streptococcal infection causes CDC on Group B streptococcal infection causes
Books
Books on Group B streptococcal infection causes
News
Group B streptococcal infection causes in the news Be alerted to news on Group B streptococcal infection causes News trends on Group B streptococcal infection causes
Commentary
Blogs on Group B streptococcal infection causes
Definitions
Definitions of Group B streptococcal infection causes
Patient Resources / Community
Patient resources on Group B streptococcal infection causes Discussion groups on Group B streptococcal infection causes Patient Handouts on Group B streptococcal infection causes Directions to Hospitals Treating Group B streptococcal infection causes Risk calculators and risk factors for Group B streptococcal infection causes
Healthcare Provider Resources
Symptoms of Group B streptococcal infection causes Causes & Risk Factors for Group B streptococcal infection causes Diagnostic studies for Group B streptococcal infection causes Treatment of Group B streptococcal infection causes
Continuing Medical Education (CME)
CME Programs on Group B streptococcal infection causes
International
Group B streptococcal infection causes en Espanol Group B streptococcal infection causes en Francais
Business
Group B streptococcal infection causes in the Marketplace Patents on Group B streptococcal infection causes
Experimental / Informatics
List of terms related to Group B streptococcal infection causes

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Streptococcus agalactiae also known as Group B Streptococcus is a gram-positive streptococcus characterized by the presence of group B Lancefield antigen. These bacteria cause Group B streptococcal infection. Streptococcus agalactiae is a species of the normal flora of the gut and female urogenital tract. Early perinatal infection causes pneumonia or septicemia, which are associated with a high mortality. During delivery, a baby can acquire S. agalactiae and develop neonatal sepsis, neonatal meningitis, and/or neonatal pneumonia. Neonates with meningitis do not present with the hallmark sign of adult meningitis, a stiff neck. They display nonspecific symptoms such as fever, vomiting, poor feeding, and irritability. The polysaccharide antiphagocytic capsule is this bacterium's main virulence factor.

S. agalactiae displays beta-hemolysis when cultured on a blood agar plate and produce zones of hemolysis that are only slightly larger than the colonies themselves. Group B streptococci hydrolyze sodium hippurate and give a positive response in the CAMP test. S. agalactiae is also sensitive to bile and will lyse in its presence.

S. galactias

References

• Brooks, Geo F., Janet Butel, and Stephen Morse. Jawetz, Melnick, and Adelberg's Medical Microbiology, 22nd edition. 2001.
• Gillespie, Stephen and Kathleen Bamford. Medical Microbiology at a Glance. 2000.

Template:WH Template:WS