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. 2006 Oct 26;135(5):775–786. doi: 10.1017/S0950268806007369

Fig. 3.

Fig. 3

Estimates of age group-specific basic reproduction ratio varied with three contact pattern matrices structures of \tilde{\beta }_{m\setnum{1}} \lpar {a\comma a \hskip .5\prime } \rpar, \tilde{\beta }_{m\setnum{2}} \lpar {a\comma a \hskip .5\prime } \rpar and \tilde{\beta }_{m\setnum{3}} \lpar {a\comma a \hskip .5\prime } \rpar (see Appendix 1). The five age groups are 0–1, 2–3, 4–6, 7–14, and 15–35 years. (a) 1974–1977, (b) 1992–1995, and (c) 2004 nationwide vaccination programmes.