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Ontario’s Pneumococcal Vaccination Program Allison McGeer
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Adult pneumococcal vaccination - expert opinion
Public health experts uniformly recommend vaccine (NACI, ACIP) Clinician experts tend not to (eg. CTFPHE) Ontario mounts population-based pneumococcal vaccination program
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Prevention of pneumococcal disease in adults
NACI recommends vaccine for: all those >65 years of age all persons with asplenia, splenic dysfunction or sickle cell disease all persons with: chronic cardiorespiratory disease (except asthma), cirrhosis, alcoholism, chronic renal disease, nephrotic syndrome diabetes mellitus, chronic CSF leak, HIV infection and other conditions associated with immunosuppression
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Provincial pneumococcal vaccine program - primary strategies
Deliver pneumococcal vaccine with influenza vaccine Target 70% of NACI eligible persons Supply vaccine over three years; withhold enough stock for mid-year use
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Implementation Focus groups
Mailing to all physicians describing program Q&A on program, vaccine articles (rationale, repeat vaccination, combined vaccine) Press Conference for launch Notification with influenza vaccine order that 30% as many doses of pneumococcal vaccine would be supplied
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Hypothesis: The Ontario pneumococcal vaccination program will reduce the rate of invasive pneumococcal disease in the vaccine-eligible population
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Anticipated impact of Ontario vaccination program
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Outcome evaluation Telephone surveys of vaccine eligible population to determine vaccination rates Assessment of disease incidence: comparison of disease incidence by age, and in vaccine eligible and non-eligible groups comparison of disease incidence with Quebec indirect cohort analysis of vaccine efficacy time series analysis
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LSPQ surveillance Jan 1, 1996 -
Lab-based reporting of number of sterile site pneumococcal isolates from all labs in of Quebec Sentinel laboratories (N=20-25) send isolates for serotyping, susceptibility testing
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Vaccine Coverage (pre-program)
Community Surveys: Duclos (1994) 1.8% >65 yrs (Canada) Hockin (1996) 7.4% eligibles (Ottawa) MD survey: 8% of GPs recommended vaccine to eligible patients 1994: 40% LTCF residents vaccinated
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Vaccine Distributed and Estimated Coverage - Ontario
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Pneumococcal vaccination rates, by risk group
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Rate of invasive pneumococcal disease, by age group, metropolitan Toronto/Peel region
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Cases of invasive disease by vaccine eligibility, Metro/Peel, 1995-8
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Rate of invasive pneumococcal disease: Metro/Peel vs. Quebec
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Total rates of invasive pneumococcal disease in Metropolitan Toronto and Quebec population (per 100,000 populations),
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Indirect cohort analysis
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Rates of invasive pneumococcal disease in vaccine eligible population (per 100,000 population) Metropolitan Toronto/Peel Region,
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Rate of invasive pneumococcal disease in vaccine ineligible populations (per 100,000 populations) Metropolitan Toronto/Peel Region,
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Anticipated/observed impact of Ontario Vaccination Program
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Conclusions Ontario program increased pneumococcal vaccination rates, largely in the >65 yr group New program will be needed for further increases The increase was associated with a significant reduction in the incidence of invasive disease
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Next Questions Vaccine efficacy in subgroups
Defining additional risk groups (smokers, cancer) Duration of immunity Impact on pneumonia
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Microbiology technologists, infection control
TIBDN Wigdan Al-Sukhni (U of T) Patricia Avarino (Ryerson) Lynda Eunson Ellie Goldenberg Karen Green Lisa Landry Margaret McArthur Sharon Miller Andrew Morris (U of T) Agron Plevneshi Sylvia Pong-Porter Nilofar Siddiqi Liljana Trpeski Barbara Willey Microbiology technologists, infection control practitioners, public health inspectors from metropolitan Toronto/Peel region
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TIBDN 2003/2004 NEW: sterile site Salmonella spp.
S. pneumoniae - sterile sites and respiratory Clinical isolates of MRSA Group B streptococci Group A streptococci NEW: sterile site Salmonella spp.
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