NNDSS Weekly Data

NNDSS - In this Table, provisional cases* of notifiable diseases are displayed for United States, U.S. territories, and Non-U.S. residents.

Notes:

• These are weekly cases of selected infectious national notifiable diseases, from the National Notifiable Diseases Surveillance System (NNDSS). NNDSS data reported by the 50 states, New York City, the District of Columbia, and the U.S. territories are collated and published weekly as numbered tables available at https://www.cdc.gov/nndss/data-statistics/index.html. Cases reported by state health departments to CDC for weekly publication are subject to ongoing revision of information and delayed reporting. Therefore, numbers listed in later weeks may reflect changes made to these counts as additional information becomes available. Case counts in the tables are presented as published each week. See also Guide to Interpreting Provisional and Finalized NNDSS Data.

• Notices, errata, and other notes are available in the Notice To Data Users page.

• The list of national notifiable infectious diseases and conditions and their national surveillance case definitions are available at https://ndc.services.cdc.gov/. This list incorporates the Council of State and Territorial Epidemiologists (CSTE) position statements approved by CSTE for national surveillance.

Footnotes:

*Case counts for reporting years 2023 and 2024 are provisional and subject to change. Cases are assigned to the reporting jurisdiction submitting the case to NNDSS, if the case's country of usual residence is the U.S., a U.S. territory, unknown, or null (i.e. country not reported); otherwise, the case is assigned to the 'Non-U.S. Residents' category. Country of usual residence is currently not reported by all jurisdictions or for all conditions. For further information on interpretation of these data, see https://www.cdc.gov/nndss/docs/Readers-Guide-WONDER-Tables-20210421-508.pdf.
†Previous 52 week maximum and cumulative YTD are determined from periods of time when the condition was reportable in the jurisdiction (i.e., may be less than 52 weeks of data or incomplete YTD data).
• Please refer to the CDC WONDER publication for weekly updates to the footnote for influenza-associated pediatric mortality.
U: Unavailable — The reporting jurisdiction was unable to send the data to CDC or CDC was unable to process the data.
-: No reported cases — The reporting jurisdiction did not submit any cases to CDC.
N: Not reportable — The disease or condition was not reportable by law, statute, or regulation in the reporting jurisdiction.
NN: Not nationally notifiable — This condition was not designated as being nationally notifiable.
NP: Nationally notifiable but not published.
NC: Not calculated — There is insufficient data available to support the calculation of this statistic.
Cum: Cumulative year-to-date counts.
Max: Maximum — Maximum case count during the previous 52 weeks.

美国国家法定传染病监测系统（National Notifiable Diseases Surveillance System，NNDSS）——本表格展示了美国、美国领地以及非美国居民的法定传染病暂定病例*数据。

备注：
• 本数据为美国国家法定传染病监测系统（NNDSS）收录的选定法定传染病周度病例数。全美50个州、纽约市、哥伦比亚特区及美国领地通过该系统上报的数据，会被汇总并以编号表格形式每周发布，详情可访问 https://www.cdc.gov/nndss/data-statistics/index.html。各州卫生部门上报至美国疾病控制与预防中心（Centers for Disease Control and Prevention，CDC）以供每周发布的数据，仍处于持续修订及延迟上报的状态。因此，后续周次公布的统计数值可能会随着新增信息的获取而发生调整。表格中的病例计数均以当周发布版本为准。如需了解更多，可参阅《解读美国国家法定传染病监测系统暂定与最终数据指南》（Guide to Interpreting Provisional and Finalized NNDSS Data）。
• 数据用户通知、勘误及其他说明可查阅《数据用户通知》页面。
• 美国全国法定传染病及病症清单、国家监测病例定义可通过 https://ndc.services.cdc.gov/ 获取。该清单纳入了由美国州与领地流行病学家委员会（Council of State and Territorial Epidemiologists，CSTE）批准并用于国家监测的立场声明。

脚注：
* 2023年及2024年报告年度的病例计数为暂定数据，仍有可能发生变更。若病例的常规居住国为美国、美国领地、未知或未上报（即未提供居住国信息），则病例将归属至提交上报的管辖区域；反之，病例将归类至「非美国居民」类别。目前并非所有管辖区域或所有病症都会上报病例的常规居住国信息。如需进一步了解该数据的解读方式，可参阅 https://www.cdc.gov/nndss/docs/Readers-Guide-WONDER-Tables-20210421-508.pdf。
† 此前52周的最大值及年初至今累计值，是基于该病症在对应管辖区域内具备上报要求的时间段计算得出（即可能不足52周的数据或不完整的年初至今数据）。
• 请参阅美国CDC WONDER发布内容，获取流感相关儿科死亡率脚注的每周更新信息。
U：数据不可用——上报管辖区域未能向CDC提交数据，或CDC无法处理该数据。
-：无上报病例——上报管辖区域未向CDC提交任何病例。
N：无需上报——该疾病或病症在上报管辖区域内无法律、法规要求其上报。
NN：非全国法定上报病症——该病症未被指定为全国法定上报病症。
NP：属于全国法定上报病症但未发布。
NC：未计算——无足够数据支持该统计值的计算。
Cum：累计年初至今计数。
Max：最大值——此前52周内的最高病例数。