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. 2018 Oct 30;67(Suppl 1):S42–S50. doi: 10.1093/cid/ciy603

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© The Author(s) 2018. Published by Oxford University Press for the Infectious Diseases Society of America.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 1. — Flow diagram for the selection of the analytical cohort from NCT 01841671, an investigation of the “Immunogenicity of 1 or 2 Doses of bOPV in Chilean Infants Primed with IPV Vaccine (IPV002ABMG),” undertaken in Santiago, Chile, between 25 April and 1 August 2013.

Abbreviations: bOPV, bivalent oral polio vaccine; IgA, immunoglobulin A; IPV, trivalent inactivated polio vaccine; neut., neutralization.

^aReasons for exclusion are not mutually exclusive.

^bSubjects with missing type 2 oral poliovirus vaccine shedding data from at least 1 visit at 28, 29, 30, 31, or 32 weeks of age.

^cSubjects with missing polio type 2–specific stool neutralization and immunoglobulin A data from at least 1 visit at 28 or 30 weeks of age.

^dPolio type 1–specific immunoglobulin A data were missing from the visit at 30 weeks of age in 2 of the included subjects in the IPV-IPV-bOPV group and 1 in the IPV-IPV-IPV group.

^eType 1– and 2–specific serum neutralization data were missing from the visits at 28 and/or 29 weeks of age in 1 of the included subjects in the IPV-IPV-bOPV group and 3 in the IPV-bOPV-bOPV group.