Streptococcus Group B

Below you will find more information about Streptococcus Group B from Medigest. If you believe that you are suffering from any of the symptoms of Streptococcus Group B it is important that you obtain an accurate diagnosis from a medical professional to ensure that you obtain the correct medication or treatment for your condition. There are medical conditions that carry similar symptoms associated with Streptococcus Group B and therefore the information provided by Medigest is offered as a guideline only and should never be used in preference to seeking professional medical advice. The information relating to Streptococcus Group B comes from a third party source and Medigest will not be held liable for any inaccuracies relating to the information shown.


Infection with Group B Streptococcus (GBS), also called Streptococcus agalactiae, can cause serious illness and sometimes death, especially in newborn infants and the elderly. Group B streptococci are also important pathogens in veterinary medicine, because they can result to bovine mastitis (inflammation of the udder) in dairy cows. The species name "agalactiae" meaning "no milk", refers to this. Streptococcus agalactiae is a gram-positive streptococcus marked by the presence of Group B Lancefield antigen, and so takes the name Group B Streptococcus.


Group B strep infection is diagnosed by a laboratory test of spinal fluid or blood.


Group B strep infections in both newborns and adults are typically treated with antibiotics given intravenously (through a vein).

Symptoms and Signs

In adults, group B strep usually does not cause any symptoms. However, in rare cases, it can result to serious bloodstream infections, urinary tract infections, skin infections, and pneumonia, especially in people with weakened immune systems and other health problems, such as diabetes.


Infections are caused by Group B Streptococcus (GBS).

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