The forecasted number of reported mumps cases in Japan shows a declining trend from 2024 to 2028, decreasing from 45.03 thousand in 2024 to 27.78 thousand in 2028. In 2023, the actual reported cases stood at 50. Reports indicate a year-on-year reduction: 2025 sees a 9.72% decrease, 2026 an 10.65% decrease, 2027 an 11.84% decrease, and 2028 a 13.24% decrease. Over the five years from 2024 to 2028, the compound annual growth rate (CAGR) indicates an average annual reduction of approximately 11.70%.
Future trends to watch for include vaccination policy improvements and new medical interventions, which could further alter mumps infection rates. Monitoring these aspects alongside public health awareness will be crucial for predicting future trends in mumps cases.
