Abstract
Evaluating vaccine efficacy for protection against colonisation (VEcol) with bacterial pathogens is an area of growing interest. In this article, we consider estimation of VEcol for colonisation with Streptococcus pneumoniae (the pneumococcus). Colonisation is a common, recurrent and multi-type endpoint that requires both careful definition of the vaccine efficacy parameter and the corresponding method of estimation. We review recent developments in the area and provide practical guidelines for choosing the estimand and the estimation method in trials with a colonisation endpoint. We concentrate on methods that are based on a cross-sectional study design, in which only one nasopharyngeal sample is obtained per study subject.
Original language | English (US) |
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Pages (from-to) | 153-158 |
Number of pages | 6 |
Journal | Vaccine |
Volume | 32 |
Issue number | 1 |
DOIs | |
State | Published - Dec 17 2013 |
Keywords
- Nasopharyngeal colonisation
- Pneumococcus
- Trial endpoint
- Vaccine efficacy
ASJC Scopus subject areas
- Molecular Medicine
- Immunology and Microbiology(all)
- veterinary(all)
- Public Health, Environmental and Occupational Health
- Infectious Diseases