Invasive Group B streptococcus infections in adults, England, 2015-2016

Simon M. Collin*, Nandini Shetty, Theresa Lamagni

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


During 2015-2016, a total of 3,156 episodes of invasive group B Streptococcus (iGBS) infection in adults (>15 years of age) were recorded in England, corresponding to an annual incidence of 3.48/100,000 population. iGBS incidence was highest in older patients and women of childbearing age. The 493 pregnancy-related iGBS episodes correspond to a rate of 1.34/10,000 live births. In adults up to 60-69 years of age and in pregnant women, iGBS incidence increased with higher levels of socioeconomic deprivation. Hospital admissions associated with iGBS were predominantly emergency admissions (73% [2,260/3,099]); only 7% of nonpregnancy iGBS diagnoses were made >48 hours after admission. Underlying conditions were highly prevalent in nonpregnant adult case-patients, including cardiovascular (57%), lung (43%), and kidney (45%) disease and diabetes (40%). Post-iGBS episode 30-day and 12-month all-cause mortality rates in nonpregnant adults were 12% and 24%, respectively. No pregnancy-related iGBS deaths were identified.

Original languageEnglish
Pages (from-to)1174-1181
Number of pages8
JournalEmerging Infectious Diseases
Issue number6
Publication statusPublished - Jun 2020

Bibliographical note

Funding Information:
This study was funded by Pfizer Inc.

Publisher Copyright:
© 2020 Centers for Disease Control and Prevention (CDC). All rights reserved.


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