Increasing Numbers of Staphylococcal Scalded Skin Syndrome Cases Caused by ST121 in Houston, Texas.
Anti-Bacterial Agents
/ pharmacology
Child
Child, Preschool
Female
Humans
Infant
Male
Microbial Sensitivity Tests
Molecular Epidemiology
Multilocus Sequence Typing
Public Health Surveillance
Staphylococcal Scalded Skin Syndrome
/ drug therapy
Staphylococcus aureus
/ drug effects
Texas
/ epidemiology
Journal
The Pediatric infectious disease journal
ISSN: 1532-0987
Titre abrégé: Pediatr Infect Dis J
Pays: United States
ID NLM: 8701858
Informations de publication
Date de publication:
01 2020
01 2020
Historique:
pubmed:
15
11
2019
medline:
22
9
2020
entrez:
15
11
2019
Statut:
ppublish
Résumé
The molecular epidemiology of Staphylococcus aureus strains causing staphylococcal scalded skin syndrome (SSSS) in the United States has not been described. We analyzed patient and S. aureus isolate characteristics associated with SSSS in children at Texas Children's Hospital. Patients with SSSS were identified by ICD9/10 codes and available S. aureus isolates were identified from an ongoing S. aureus surveillance study. Medical records were reviewed for 58 patients with available S. aureus isolates. Isolate analyses included PCR for agr group, pvl (lukSF-PV), tst, eta and etb, pulsed-field gel electrophoresis, multi-locus sequence typing and antimicrobial susceptibilities. Cases of SSSS increased from 2.3/10,000 admissions in 2008 to 52.6/10,000 admissions in 2017 (P < 0.0001). The 58 study cases (57 methicillin-susceptible S. aureus, 1 MRSA) with isolates were from 2013 to 2017. The majority (88%) of isolates was of clonal cluster (CC) 121, agr group IV, pvl, tst and carried eta and/or etb and 26% were clindamycin resistant. Twelve ST121 isolates had high level resistance to mupirocin. Patients were treated with standard supportive care plus systemic antibiotics [clindamycin alone or in combination with another antibiotic (n = 44)]. One patient had a recurrent SSSS and one patient was transferred to a burn unit on day 3. Cases of SSSS are increasing at our hospital. Most S. aureus strains isolated were of one CC, CC121 and carried eta and etb. Supportive care plus clindamycin was effective treatment. We speculate that CC121 was recently introduced to our region and is responsible for the increasing numbers of SSSS cases observed at Texas Children's Hospital.
Sections du résumé
BACKGROUND
The molecular epidemiology of Staphylococcus aureus strains causing staphylococcal scalded skin syndrome (SSSS) in the United States has not been described. We analyzed patient and S. aureus isolate characteristics associated with SSSS in children at Texas Children's Hospital.
METHODS
Patients with SSSS were identified by ICD9/10 codes and available S. aureus isolates were identified from an ongoing S. aureus surveillance study. Medical records were reviewed for 58 patients with available S. aureus isolates. Isolate analyses included PCR for agr group, pvl (lukSF-PV), tst, eta and etb, pulsed-field gel electrophoresis, multi-locus sequence typing and antimicrobial susceptibilities.
RESULTS
Cases of SSSS increased from 2.3/10,000 admissions in 2008 to 52.6/10,000 admissions in 2017 (P < 0.0001). The 58 study cases (57 methicillin-susceptible S. aureus, 1 MRSA) with isolates were from 2013 to 2017. The majority (88%) of isolates was of clonal cluster (CC) 121, agr group IV, pvl, tst and carried eta and/or etb and 26% were clindamycin resistant. Twelve ST121 isolates had high level resistance to mupirocin. Patients were treated with standard supportive care plus systemic antibiotics [clindamycin alone or in combination with another antibiotic (n = 44)]. One patient had a recurrent SSSS and one patient was transferred to a burn unit on day 3.
CONCLUSIONS
Cases of SSSS are increasing at our hospital. Most S. aureus strains isolated were of one CC, CC121 and carried eta and etb. Supportive care plus clindamycin was effective treatment. We speculate that CC121 was recently introduced to our region and is responsible for the increasing numbers of SSSS cases observed at Texas Children's Hospital.
Identifiants
pubmed: 31725120
doi: 10.1097/INF.0000000000002499
pii: 00006454-202001000-00006
doi:
Substances chimiques
Anti-Bacterial Agents
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
30-34Références
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