Volume 30, Number 1—January 2024
Research
Molecular Evolution and Increasing Macrolide Resistance of Bordetella pertussis, Shanghai, China, 2016–2022
Figure 1

Figure 1. Distributions of pertussis patients in different age groups, Shanghai, China, 2016–2022. Pertussis was primarily detected from infants (0–1 years of age) before 2020 but mostly from older children and adolescents (>5–10 years of age) after 2020.
1These first authors contributed equally to this article.
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