Fig. 2From: Cost-effectiveness of childhood pneumococcal vaccination program in Ethiopia: results from a quasi-experimental evaluationSurvival curves of first time acute lower respiratory infection (ALRI) at Butajira rural health program site, after one year of life in the vaccinated sub-groups (Sept. 2011 – Aug. 2012) compared to control group (Sept. 2009 – Aug. 2010)Back to article page