Figure 1
OTFW incidence rates (OTFW incidents per herd years at risk) for: (a) every intervention year from 2009 to 2021 in all 52 BCP areas. (b) Years before BCP interventions started in the 31 areas that started BCP during 2013–2018: the cohort gradually reduced from 2013 (see Table 1). (c) Years before BCP interventions started in the 21 areas that started BCP interventions in 2019 (11 areas) or 2020 (10 areas): only the last 10 areas are included for 2019–2020. In the box and whisker plots, the central vertical line is the median. The box ranges from the lower quartile to the upper quartile. The whiskers show the full range of the data, unless outliers are present, which are shown individually as dots.
