Correlation analysis between positivity rate of immunoglobulin G antibodies against pertussis toxin among community-based populations and reported pertussis incidence in Shandong, China: a seven-year seroepidemiological study
BMC Infect Dis. 2025 Oct 24;25(1):1404. doi: 10.1186/s12879-025-11802-9. ABSTRACT BACKGROUND: The reported annual incidence of pertussis in China has shown a marked increase over the …