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. Author manuscript; available in PMC: 2018 Dec 4.
Published in final edited form as: Vaccine. 2017 Oct 21;35(48 Pt B):6751–6758. doi: 10.1016/j.vaccine.2017.09.082

Fig. 1.

Fig. 1

Mean monthly vaccine wastage, by vaccine, for health facilities and vaccination sessions; selected Nigerian health facilities, 2011. Facility stock-based records wastage calculated using data from health facility monthly stock management ledgers. Session-based records wastage calculated using data from vaccination session ledgers. Numbers in parentheses represent number of health facilities with data available to calculate given wastage rate. Error bars represent the 95% confidence interval for given estimate. Broken lines indicate target maximum wastage for lyophilized vaccines (MCV and BCG) and for liquid vaccines (all others listed) based on 2011 Nigeria national vaccination policy. BCG = Bacillus Calmette-Guérin vaccine; OPV = oral polio vaccine; DTP = diphtheria-tetanus-pertussis vaccine; HepB = hepatitis B vaccine; TT = tetanus toxoid.