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. Author manuscript; available in PMC: 2015 Dec 17.
Published in final edited form as: Lancet. 2014 Feb 17;383(9930):1762–1770. doi: 10.1016/S0140-6736(13)61682-7

Figure. Proportions of different categories of pneumonia attributable to pneumococcus (left) and the effect of pneumococcal vaccine (right).

Figure

On the left, for the more specific outcomes towards the top of the triangle, vaccine efficacy is higher, whereas for the more sensitive outcomes at the base of the triangle, the vaccine preventable disease incidence is higher, as is the public health utility of vaccine.