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Estimating the influenza vaccine effectiveness in elderly on a yearly basis using the Spanish influenza surveillance network—Pilot case–control studies using different control groups, 2008–2009 season, Spain
- Source :
-
Vaccine . Apr2010, Vol. 28 Issue 16, p2903-2907. 5p. - Publication Year :
- 2010
-
Abstract
- Abstract: We conducted a case–control and screening method studies to estimate influenza vaccine effectiveness (IVE) in the age group ≥65 years, based on the Spanish Influenza Sentinel Surveillance System (SISSS). Cases (influenza laboratory-confirmed) were compared to influenza-negative ILI patients (test-negative) and patients without ILI since the beginning of the season (non-ILI). For the screening method, cases’ vaccination coverage was compared to the vaccination coverage of the GPs’ catchment population. The results suggested a protective effect of the vaccine against laboratory-confirmed influenza in elderly in 2008–2009. The screening method and the test-negative control designs enable estimating IVE using exclusively SISSS data. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 0264410X
- Volume :
- 28
- Issue :
- 16
- Database :
- Academic Search Index
- Journal :
- Vaccine
- Publication Type :
- Academic Journal
- Accession number :
- 48893699
- Full Text :
- https://doi.org/10.1016/j.vaccine.2010.01.054