Numbers of reported cases by outbreak and outbreak duration for the low-risk area and by AHS season (year) for the endemic area.

Numbers of reported cases by outbreak and outbreak duration for the low-risk area and by AHS season (year) for the endemic area.本数据集涵盖两类统计维度下的报告病例数：低风险地区的报告病例数按暴发事件及暴发持续时长统计，流行地区的报告病例数按AHS季（年）统计。