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. 2020 Mar 2;16(5):1062–1069. doi: 10.1080/21645515.2020.1714311

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© 2020 The Author(s). Published with license by Taylor & Francis Group, LLC.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.

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Figure 4. — Analysis of neutrality and negative rates on vaccine-related events.

Panel a. Publication of the National Plan for the Vaccine Prevention (PNPV) 2017–19 and agreement with Italian Regions for a vaccination-enforcing law (January 26^th, 2017); Panel b. Approval of the Legislative Decree n. 73 introducing 12 compulsory vaccinations (June 7^th, 2017); Panel c. Approval in the Italian Chamber of Deputies of the Vaccines Decree (July 28^th, 2017); Panel d. Approval of the law establishing vaccination requirements for school children in Emilia Romagna Region (November 22^nd, 2016); Panel e. News about the increase of 230% cases of measles in Italy (March 16^th, 2017). A two-sample test for equality of proportions, with Bonferroni correction for multiple comparisons, was performed. Adjusted p-value significance is shown (• <0.10, * <0.05, ** <0.01, *** <0.001). Comparisons are made with baseline (days −5 to −1). Error bars show 95% binomial confidence intervals for proportions.