Invasive Infections Caused by Lancefield Groups C/G and A Streptococcus, Western Australia, Australia, 2000–2018
Epidemiologic data on invasive group C/G Streptococcus (iGCGS) infections are sparse internationally. Linked population-level hospital, pathology, and death data were used to describe the disease burden in Western Australia, Australia, during 2000–2018 compared with that of invasive group A Strepto...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Centers for Disease Control and Prevention
2022-11-01
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| Series: | Emerging Infectious Diseases |
| Subjects: | |
| Online Access: | https://wwwnc.cdc.gov/eid/article/28/11/22-0029_article |
| Summary: | Epidemiologic data on invasive group C/G Streptococcus (iGCGS) infections are sparse internationally. Linked population-level hospital, pathology, and death data were used to describe the disease burden in Western Australia, Australia, during 2000–2018 compared with that of invasive group A Streptococcus (GAS, Streptococcus pyogenes) infections. Of 1,270 cases, 866 (68%) occurred in men. Patients with iGCGS infection were older (median age 62 years) than those with invasive GAS (median age 44 years; p<0.0001). The age and sex-adjusted incidence rate ratio by year was 1.08 (95% CI 1.07–1.09). The incidence rate ratio for Indigenous compared with non-Indigenous Australians was 3.6 (95% CI 3.0–4.3). The all-cause 90-day death rate was 9% for iGCGS infection compared with 7% for invasive GAS (p = 0.03). iGCGS infection was more common in men and older persons and had a higher death rate, perhaps reflecting the effect of age and comorbidities on incidence and death.
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| ISSN: | 1080-6040 1080-6059 |