2018年4月（2018年4月1日0时至4月30日24时），全国共报告法定传染病563 697例，死亡1 424例。其中，甲类传染病无发病、死亡报告。乙类传染病中传染性非典型肺炎、白喉、脊髓灰质炎、人感染H7N9禽流感和人感染高致病性禽流感无发病、死亡报告，其余21种传染病共报告发病315 564例，死亡1 415例。报告发病数居前5位的病种依次为病毒性肝炎、肺结核、梅毒、淋病和猩红热，占乙类传染病报告病例总数的94%。

同期，丙类传染病中丝虫病无发病、死亡报告，其余10种传染病共报告发病248 133例，死亡9例。报告发病数居前3位的病种依次为手足口病、其他感染性腹泻病和流行性感冒，占丙类传染病报告病例总数的89%。

In April 2018 (from 0: 00，1 April to 24: 00，30 April)，a total of 563 697 cases of notifiable communicable diseases were reported in China，including 1 424 deaths. No cases and deaths of the diseases in class A were reported. No cases and deaths of severe acute respiratory syndrome，diphtheria，poliomyelitis and human infections with avian influenza A (H7N9) virus and highly pathogenic avian influenza virus in class B were reported. For the remaining 21 communicable diseases in class B，315 564 cases were reported，including 1 415 deaths. The first 5 diseases in terms of reported case number were viral hepatitis，pulmonary tuberculosis，syphilis，gonorrhea and scarlet fever，accounting for 94% of the total reported cases in class B.

No case and death of filariasis in class C were reported，and for the remaining 10 communicable diseases in class C，248 133 cases were reported，including 9 deaths. The first 3 diseases in terms of reported case number were hand，foot and mouth disease，other infectious diarrheal diseases and influenza，accounting for 89% of the total reported cases in class C.