8 research outputs found

    Yearly incidence of IPD.

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    <p>IPD yearly incidence per 100,000 population pre-vaccination (0 years) and after 10 and 40 years post-PCV13 with the competition parameter c<sub>N</sub> = 0.04. Abbreviations: c<sub>N</sub>, competition parameter; IPD, invasive pneumococcal disease; NVT, non-vaccine types; PCV13, 13-valent pneumococcal conjugate vaccine; VT, vaccine types.</p

    Model parameters and ranges for the analysis of PCV13 in the Netherlands.

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    a<p>We used the same degree of protection for PCV13 that was estimated by Choi <i>et al</i> (2011) <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0089415#pone.0089415-Choi1" target="_blank">[32]</a> for PCV7. Sensitivity analysis was done on this value.</p><p>Abbreviations: NVT, non-vaccine types; PCV7, 7-valent pneumococcal conjugate vaccine; PCV13, 13-valent pneumococcal conjugate vaccine; RIVM, National Institute for Public Health and the Environment, Ministry of Health, Welfare and Sport; VT, vaccine types.</p

    Yearly incidence of IPD with different mixing parameters.

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    <p><b>A</b>, IPD incidence, VT; <b>B</b>, IPD incidence, NVT; and <b>C</b>, IPD overall incidence. Yearly incidence per 100,000 population over time when different mixing parameters are used: ε = 0.50, 0.85, 1.00; and the competition parameter is c<sub>N</sub> = 0.04. Each panel corresponds to a different age group. Note: the y-axis scales are different on each graph. Abbreviations: c<sub>N</sub>, competition parameter; ε, mixing paremeter; IPD, invasive pneumococcal disease; NVT, non-vaccine types; VT, vaccine types.</p

    Carriage pre-PCV13.

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    <p>Estimated and observed carriage pre-PCV13. Prevalence rates are reported per each age or age group. Note that only the data points in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0089415#pone-0089415-g003" target="_blank">Figure 3</a> at ages 1 and 2 years, and age group 30–39 years correspond to observed carriage data; other points were interpolated. Abbreviations: c<sub>N</sub>, competition parameter; NVT, non-vaccine types; PCV13, 13-valent pneumococcal conjugate vaccine; VT, vaccine types.</p

    Dynamic transmission model.

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    <p>Flowchart representing the dynamic mathematical model used for the transmission. Abbreviations:γ<sub>i</sub>, degree of protection; λ<sub>N</sub>, age-dependent forces of infection for non-vaccine types; λ<sub>V</sub>, age-dependent forces of infection for vaccine types; ωi, the waning rate; B, both vaccine types and non-vaccine types co-colonised; Bv, both vaccine types and non-vaccine types co-colonised with vaccination; c<sub>N</sub>, competition parameters that determined the relative risk of acquiring non-vaccine types if already colonised by vaccine types; c<sub>V</sub>, competition parameters that determined the relative risk of acquiring vaccine types if already colonised by non-vaccine types; i, age group; N, non-vaccine types carriers; Nv, non-vaccine types carriers with vaccination; r<sub>N</sub>, recovery rate for non-vaccine types; r<sub>V</sub>, recovery rate for vaccine types; S, susceptible; Sv, susceptible with vaccination; v, vaccination coverage; V, vaccine type carriers; Vv, vaccine types carriers with vaccination.</p
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