Volume 30, Number 1—January 2024
Research
Effect of 2020–21 and 2021–22 Highly Pathogenic Avian Influenza H5 Epidemics on Wild Birds, the Netherlands
Figure 1

Figure 1. Relative number of reported deaths during the highly pathogenic avian influenza epidemics of 2020–21 (red asterisks), and 2021–22 (blue asterisks), the Netherlands. Deaths are relative to the normalized number of deaths reported over the same period from 2011–2012 to 2015–2016 (average is 1; data from Sovon, Dutch Centre for Field Ornithology, Nijmegen, the Netherlands). A) Deaths reported in the winter months, October–March. B) Deaths reported in the summer months, April–September. The y-axis is on a log scale; reported relative number of deaths among geese during winter 2021–22 was >50 larger than in the previous years. Error bars indicate maximum and minimum deaths.
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