Background: Invasive infections with beta-haemolytic streptococci of Lancefield groups A (iGAS), B (iGBS) and C/G (iGCGS) are a major cause of morbidity and mortality worldwide. Aim: We studied incidence trends of invasive beta-haemolytic streptococcal infections in Finland, focusing on iGCGS. Methods: We conducted a retrospective register-based study. Cases were defined as isolations from blood and/or cerebrospinal fluid and retrieved from the National Infectious Disease Register where all invasive cases are mandatorily notified. Results: Between 2006 and 2020, the mean annual incidence was 4.1 per 100,000 for iGAS (range: 2.1-6.7), 5.2 for iGBS (4.0-6.3) and 10.1 for iGCGS (5.4-17.6). The incidence displayed an increasing trend for all groups, albeit for iGBS only for individuals 45 years and older. The increase was particularly sharp for iGCGS (8% annual relative increase). The incidence rate was higher in males for iGCGS (adjusted incidence rate ratio (IRR) = 1.6; 95% confidence interval (CI): 1.5-1.8) and iGAS (adjusted IRR = 1.3; 95% CI: 1.1-1.4); for iGBS, the association with sex was age-dependent. In adults, iGCGS incidence increased significantly with age. Recurrency was seen for iGCGS and secondarily iGBS, but not for iGAS. Infections with iGCGS and iGBS peaked in July and August. Conclusions: The incidence of invasive beta-haemolytic streptococcal infections in Finland has been rising since 2006, especially for iGCGS and among the elderly population. However, national surveillance still focuses on iGAS and iGBS, and European Union-wide surveillance is lacking. We recommend that surveillance of iGCGS be enhanced, including systematic collection and typing of isolates, to guide infection prevention strategies.
机构:
Univ Birmingham, Birmingham B15 2TT, W Midlands, England
Birmingham Study Ctr, Birmingham, W Midlands, EnglandUniv Southampton, Southampton SO9 5NH, Hants, England
Hobbs, F. D. R.
Mant, D.
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机构:
Univ Oxford, Oxford OX1 2JD, England
Oxford Ctr Mol Sci, Oxford, EnglandUniv Southampton, Southampton SO9 5NH, Hants, England
机构:
Madurai Med Coll, Inst Microbiol, Dept Microbiol, Madurai, Tamil Nadu, IndiaMadurai Med Coll, Inst Microbiol, Dept Microbiol, Madurai, Tamil Nadu, India
Chandrasegaran, Sugumari
Subramaniyan, Mahesh Prabhu
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Madurai Med Coll, Inst Microbiol, Dept Microbiol, Madurai, Tamil Nadu, IndiaMadurai Med Coll, Inst Microbiol, Dept Microbiol, Madurai, Tamil Nadu, India
Subramaniyan, Mahesh Prabhu
JOURNAL OF EVOLUTION OF MEDICAL AND DENTAL SCIENCES-JEMDS,
2016,
5
(58):
: 3980
-
3984
机构:
Gloucester Royal Hosp, Primary Care Unit, Hlth Protect Agcy, Gloucester GL1 3NN, EnglandGloucester Royal Hosp, Primary Care Unit, Hlth Protect Agcy, Gloucester GL1 3NN, England
Lasseter, Gemma M.
McNulty, Cliodna A. M.
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机构:
Gloucester Royal Hosp, Primary Care Unit, Hlth Protect Agcy, Gloucester GL1 3NN, EnglandGloucester Royal Hosp, Primary Care Unit, Hlth Protect Agcy, Gloucester GL1 3NN, England
McNulty, Cliodna A. M.
Hobbs, F. D. Richard
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h-index: 0
机构:
Univ Birmingham, Coll Med & Dent Sci, Birmingham B15 2TT, W Midlands, EnglandGloucester Royal Hosp, Primary Care Unit, Hlth Protect Agcy, Gloucester GL1 3NN, England
Hobbs, F. D. Richard
Mant, David
论文数: 0引用数: 0
h-index: 0
机构:
Univ Oxford, Dept Primary Hlth Care, Oxford OX3 7LF, EnglandGloucester Royal Hosp, Primary Care Unit, Hlth Protect Agcy, Gloucester GL1 3NN, England