Figures & data
Figure 1. Number of reported pertussis cases in China, 2007–2022.Citation9.
![Figure 1. Number of reported pertussis cases in China, 2007–2022.Citation9.](/cms/asset/f2bb6598-88b5-4e87-a5fc-ee9a66cec8d3/khvi_a_2318892_f0001_oc.jpg)
Table 1. Concentration and positivity of anti-TT IgG and anti-PT IgG antibodies across age/gender groups.
Table 2. Anti-PT IgG antibody levels in different age groups reported in different studies.