Streptococcus agalactiae: Difference between revisions
From IDWiki
Streptococcus agalactiae
(Created page with "==Background== ===Microbiology=== * Gram-positive coccus in chains * Identified with the help of a CAMP test, where β-hemolysis is induced by the presence of ''Staphylococc...")  |
m (→â€)  |
||
| (7 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
==Background== |
==Background== |
||
===Microbiology=== |
===Microbiology=== |
||
| ⚫ | |||
| ⚫ | |||
| ⚫ | |||
| + | *The most common group B Streptococcus of clinical concern |
||
| ⚫ | |||
| + | |||
| + | === 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]], including [[Streptococcal bacteremia|bacteremia]] |
||
| + | *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:Gram-positive cocci]] |
||
| + | [[Category:Infectious diseases]] |
||
| + | [[Category:Pediatrics]] |
||
Latest revision as of 10:34, 12 September 2023
Background
Microbiology
- Gram-positive coccus in chains
- The most common group B Streptococcus of clinical concern
- 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 bacteremia, sepsis, pneumonia, and meningitis
Older Children and Adults
- Similar spectrum of illness to Streptococcus pyogenes, including bacteremia
- Rare cause of community-acquired meningitis in adults, with high mortality1
- Risk factors include immunocompromised state, CSF leak, and endocarditis
Management
- Treated with penicillin, amoxicillin, or a first-generation cephalosporin
References
- ^ Merel N. van Kassel, Koen J. van Haeringen, Matthijs C. Brouwer, Merijn W. Bijlsma, Diederik van de Beek. Community-acquired group B streptococcal meningitis in adults. Journal of Infection. 2020;80(3):255-260. doi:10.1016/j.jinf.2019.12.002.
