Allison McGeer, Canada
Sinai Health System MicrobiologyAuthor Of 5 Presentations
CHANGES IN SEROTYPE 3 (ST3) INVASIVE PNEUMOCOCCAL DISEASE (IPD) AFTER 13-VALENT CONJUGATE VACCINE (PCV13) INTRODUCTION IN SOUTHERN ONTARIO (ID 506)
Abstract
Background
We asked whether the epidemiology of ST3 IPD changed after implementation of infant PCV13 (2010) and immunosuppressed 50+ (2014) programs.
Methods
Our research network conducts population-based surveillance for IPD in Toronto/Peel, Ontario. We assessed incidence of IPD due to ST3 and compared the characteristics of IPD due to ST3 and other STs (OST) pre- (2001-2009) and post- (2013-2018) PCV13 introduction.
Results
8183 cases of IPD occurred from 2001-present (733 ST3). Figure shows ST3 incidence: compared to pre-PCV13, the incidence post-PCV13 was lower in 65+ was lower (IRR 0.66 (0.53-0.81), P<0.001), but higher in 50-64yrolds (IRR 1.45 (1.14-1.85), P=0.003).
Post-PCV13 compared to pre-PCV13, the proportion of IPD in homeless persons increased in both ST3 and OST (1.5-6.6% and 1.8-5.4%), while the proportion of cases with any underlying chronic illness and immunosuppression trended down in ST3 (67-61% and 25-21%), but increased significantly in OST (63-69%, 29-34%, both P<0.0012). The ICU admission and case fatality rate of ST3 declined (45-40%, P=NS and 29-21%, P=0.03), while those due to OST did not change (25-27% and 17-17%, P=NS).
Conclusions
In our population, pediatric PCV13 program implementation was temporally associated with a decline in ST3 disease in older adults but an increase in 50-64yrolds; case fatality also declined.
SEROTYPE-SPECIFIC URINE ANTIGEN DETECTION ENHANCES THE IDENTIFICATION OF NON-BACTEREMIC PNEUMOCOCCAL COMMUNITY ACQUIRED PNEUMONIA IN HOSPITALIZED CANADIAN ADULTS (ID 615)
- Jason J. LeBlanc, Canada
- May ElSherif, Canada
- Lingyun Ye, Canada
- Donna MacKinnon-Cameron, Canada
- Ardith Ambrose, Canada
- Todd F. Hatchette, Canada
- Amanda L. Lang, Canada
- Hayley D. Gillis, Canada
- Irene Martin, Canada
- Walter Demczuk, Canada
- Craig LaFerriere, Canada
- Melissa K. Andrew, Canada
- Guy Boivin, Canada
- William Bowie, Canada
- Karen Green, Canada
- Jennie Johnstone, Canada
- Mark Loeb, Canada
- Anne E. McCarthy, Canada
- Allison McGeer, Canada
- Makeda Semret, Canada
- Sylvie Trottier, Canada
- Louis Valiquette, Canada
- Duncan Webster, Canada
- Shelly A. McNeil, Canada
EFFECTIVENESS OF PPV23 PNEUMOCOCCAL VACCINE AGAINST PNEUMOCOCCAL COMMUNITY ACQUIRED PNEUMONIA IN HOSPITALIZATION CANADIAN ADULTS (ID 617)
- May ElSherif, Canada
- Jason J. LeBlanc, Canada
- Lingyun Ye, Canada
- Donna MacKinnon-Cameron, Canada
- Ardith Ambrose, Canada
- Todd F. Hatchette, Canada
- Amanda L. Lang, Canada
- Hayley D. Gillis, Canada
- Irene Martin, Canada
- Walter Demczuk, Canada
- Craig LaFerriere, Canada
- Melissa K. Andrew, Canada
- Guy Boivin, Canada
- William Bowie, Canada
- Karen Green, Canada
- Jennie Johnstone, Canada
- Mark Loeb, Canada
- Anne E. McCarthy, Canada
- Allison McGeer, Canada
- Makeda Semret, Canada
- Sylvie Trottier, Canada
- Louis Valiquette, Canada
- Duncan Webster, Canada
- Shelly A. McNeil, Canada
PAIRING ACTIVE SURVEILLANCE AND HOSPITAL DISCHARGE SUMMARIES TO ESTIMATE THE INCIDENCE OF PNEUMOCOCCAL COMMUNITY ACQUIRED PNEUMONIA (ID 589)
- Jason J. LeBlanc, Canada
- May ElSherif, Canada
- Lingyun Ye, Canada
- Donna MacKinnon-Cameron, Canada
- Ardith Ambrose, Canada
- Todd F. Hatchette, Canada
- Amanda L. Lang, Canada
- Hayley D. Gillis, Canada
- Irene Martin, Canada
- Walter Demczuk, Canada
- Craig LaFerriere, Canada
- Melissa K. Andrew, Canada
- William Bowie, Canada
- Guy Boivin, Canada
- Karen Green, Canada
- Jennie Johnstone, Canada
- Mark Loeb, Canada
- Anne E. McCarthy, Canada
- Allison McGeer, Canada
- Makeda Semret, Canada
- Sylvie Trottier, Canada
- Louis Valiquette, Canada
- Duncan Webster, Canada
- Shelly A. McNeil, Canada
COMPARISON BETWEEN CANADIAN ADULTS 50+ AND 65+ YEARS HOSPITALIZED WITH PNEUMOCOCCAL COMMUNITY ACQUIRED PNEUMONIA (ID 616)
- Jason J. LeBlanc, Canada
- May ElSherif, Canada
- Lingyun Ye, Canada
- Donna MacKinnon-Cameron, Canada
- Ardith Ambrose, Canada
- Todd F. Hatchette, Canada
- Amanda L. Lang, Canada
- Hayley D. Gillis, Canada
- Irene Martin, Canada
- Walter Demczuk, Canada
- Craig LaFerriere, Canada
- Melissa K. Andrew, Canada
- William Bowie, Canada
- Guy Boivin, Canada
- Karen Green, Canada
- Jennie Johnstone, Canada
- Mark Loeb, Canada
- Anne E. McCarthy, Canada
- Allison McGeer, Canada
- Makeda Semret, Canada
- Sylvie Trottier, Canada
- Louis Valiquette, Canada
- Duncan Webster, Canada
- Shelly A. McNeil, Canada