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. Author manuscript; available in PMC: 2017 Jul 26.
Published in final edited form as: Vaccine. 2015 Jan 16;33(10):1235–1242. doi: 10.1016/j.vaccine.2015.01.018

Fig. 1.

Fig. 1

Screening process for included manuscripts. This figure demonstrates the screening process for included and excluded citations from PubMed, Science Direct, Scopus, and Web of Science. Cases were included if (1) the patient had a PID reported by the authors, and (2) the vaccine virus isolated from the patient met the sequencing definition of VDPV (>1% divergence for serotypes 1 and 3 and >0.6% for serotype 2) and/or the case had been previously reported as an iVDPV by the World Health Organization.