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. Author manuscript; available in PMC: 2024 Jan 23.
Published in final edited form as: Science. 2020 Mar 19;368(6489):401–405. doi: 10.1126/science.aba1238

Fig. 3. Timeline of circulating VDPV2 outbreaks reported between 1 May 2016 and 1 November 2019, ordered by the date of first isolate detection.

Fig. 3.

The estimated seeding date (i.e., the date that an infectious OPV dose was administered) and 95% confidence intervals are given by horizontal bars, colored by the probability that the date of seeding was after the Switch on 1 May 2016 (dashed black line denotes date of Switch). Detected virus isolates are shown by colored circles, with the color indicating whether the outbreak is assumed to be active (detection within previous 12 months) or closed (no detection in previous 12 months). Data are as of 1 November 2019. NIE-BOS-16: This outbreak was genetically linked to a cVDPV2 emergence originating in Chad in 2012.