The forecasted data indicates a stable pertussis incidence in Japan, maintaining at 900 cases per hundred people from 2024 through 2025, with an increase to 1,000 cases from 2026 to 2028. This represents a 0% year-on-year change from 2024 to 2025, followed by an 11.11% increase observed between 2025 and 2026, which remains constant through 2027 and 2028. Notably, from 2023 to 2024, there was no notable change, concluding with a compound annual growth rate (CAGR) of 2.74% from 2023 to 2028.
Future trends to watch for include potential policy changes in vaccination programs and public health interventions, which may influence the pertussis incidence. Monitoring global research on pertussis treatment and prevention methods is also crucial, as new developments could impact incidence rates significantly.