View source for Streptococcus agalactiae

==Background==
===Microbiology===

*[[Stain::Gram-positive]] [[Shape::coccus]] in chains
*Identified with the help of a [[CAMP test]], where β-hemolysis is induced by the presence of ''[[Staphylococcus aureus]]''

=== Epidemiology ===

* Previously the most common cause of [[neonatal sepsis]], until screening and prophylaxis during pregnancy and deliverybecame routine

==Clinical Manifestations==

===Neonatal===

*May be either early-onset (< 7 days old) or late-onset (7 to 90 days old)
*Presents with [[Causes::bacteremia]], [[Causes::sepsis]], [[Causes::pneumonia]], and [[Causes::meningitis]]

===Older Children and Adults===

*Similar spectrum of illness to [[Streptococcus pyogenes]]
*Rare cause of community-acquired [[Bacterial meningitis|meningitis]] in adults, with high mortality[[CiteRef::van kassel2020co]]
**Risk factors include immunocompromised state, [[Cerebrospinal fluid leak|CSF leak]], and [[Infective endocarditis|endocarditis]]

==Management==

*Treated with [[Is treated by::penicillin]], [[Is treated by::amoxicillin]], or a [[Cephalosporin|first-generation cephalosporin]]
{{DISPLAYTITLE:''Streptococcus agalactiae''}}
[[Category:Gram-positive cocci]]
[[Category:Infectious diseases]]
[[Category:Pediatrics]]