Preliminary U.S. COVID-19 Burden Estimates

This dataset represents preliminary weekly estimates of cumulative U.S. COVID-19 burden, including illnesses, outpatient visits, hospitalizations and deaths, since the start of 2024 respiratory season. Estimates are preliminary, and use reported weekly hospitalizations among people with a laboratory-confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. The data are updated weekly as new COVID-19 hospitalizations are reported to CDC from the COVID-NET surveillance system and include both new admissions that occurred during the reporting week, as well as those admitted in previous weeks that may not have been included in earlier reporting. Each week CDC estimates a range (i.e., a lower estimate and an upper estimate) of COVID-19 hospitalizations, illnesses, outpatient visits, and deaths that have occurred since the start of respiratory season. For details, please refer to the publications [1, 8]. <b>Note:</b> Data are preliminary and subject to change as updated data become available. Rates for recent COVID-19 hospital admissions are subject to reporting delays; as new data are received each week, previous rates are updated accordingly. The methodology used for COVID-19 burden estimation between the surveillance periods was updated to account for inclusion of additional surveillance sites, seasonal changes to adjustment factors, revised outpatient visits, illnesses and death multiplier ratios, and improvements in estimation methods [1]. <b>References</b> 1. Koumans EHA, Khan D, Trejo I, et al; Estimate of Burden of COVID-19 Workgroup. Estimated burden of COVID-19 illnesses, medical visits, hospitalizations, and deaths in the US from October 2022 to September 2024. JAMA Intern Med. Published online January 5, 2026. <a href="https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2843383#250739811">Estimated Burden of COVID-19 Illnesses, Medical Visits, Hospitalizations, and Deaths in the US From October 2022 to September 2024 | Coronavirus (COVID-19) | JAMA Internal Medicine | JAMA Network</a><br>2. Reed C, Chaves SS, Daily Kirley P, et al. Estimating influenza disease burden from population-based surveillance data in the United States. PLoS One. 2015;10(3):e0118369. <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0118369">Estimating Influenza Disease Burden from Population-Based Surveillance Data in the United States | PLOS One</a><br>3. Rolfes, MA, Foppa, IM, Garg, S, et al. Annual estimates of the burden of seasonal influenza in the United States: A tool for strengthening influenza surveillance and preparedness. Influenza Other Respi Viruses. 2018; 12: 132– 137. <a href="https://doi.org/10.1111/irv.12486">https://doi.org/10.1111/irv.12486</a><br>4. Tokars JI, Rolfes MA, Foppa IM, Reed C. An evaluation and update of methods for estimating the number of influenza cases averted by vaccination in the United States. Vaccine. 2018;36(48):7331-7337. doi:10.1016/j.vaccine.2018.10.026 <br>5. Collier SA, Deng L, Adam EA, Benedict KM, Beshearse EM, Blackstock AJ, Bruce BB, Derado G, Edens C, Fullerton KE, Gargano JW, Geissler AL, Hall AJ, Havelaar AH, Hill VR, Hoekstra RM, Reddy SC, Scallan E, Stokes EK, Yoder JS, Beach MJ. Estimate of Burden and Direct Healthcare Cost of Infectious Waterborne Disease in the United States. Emerg Infect Dis. 2021 Jan;27(1):140-149. doi: 10.3201/eid2701.190676. PMID: 33350905; PMCID: PMC7774540. <br>6. Reed C, Kim IK, Singleton JA,  et al. Estimated influenza illnesses and hospitalizations averted by vaccination–United States, 2013-14 influenza season. MMWR Morb Mortal Wkly Rep. 2014 Dec 12;63(49):1151-4. https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6349a2.htm <br>7. Reed C, Angulo FJ, Swerdlow DL, et al. Estimates of the Prevalence of Pandemic (H1N1) 2009, United States, April–July 2009. Emerg Infect Dis. 2009;15(12):2004-2007.<a href="https://dx.doi.org/10.3201/eid1512.091413">https://dx.doi.org/10.3201/eid1512.091413</a> <br>8. Devine

本数据集为2024年呼吸道疾病季以来美国新型冠状病毒病（COVID-19）累计负担的周度初步估算值，涵盖发病例数、门诊就诊量、住院人次与死亡数。本次估算为初步结果，基于实验室确诊严重急性呼吸综合征冠状病毒2型（SARS-CoV-2）感染者的周度报告住院人次数据。本数据每周更新一次，更新依据为COVID-NET监测系统向美国疾病控制与预防中心（CDC）报送的新增新冠住院人次数据；数据既包含报告当周发生的新增住院病例，也涵盖此前几周入院但未纳入早期报告的病例。美国疾病控制与预防中心（CDC）每周都会估算自呼吸道疾病季启动以来，新冠相关住院人次、发病例数、门诊就诊量及死亡数的取值区间（即下限估算值与上限估算值）。详细信息请参阅文献[1, 8]。

**注意**：本数据为初步结果，随更新数据的获取可能发生调整。近期新冠住院入院率存在报告延迟；每周接收新数据后，此前的估算率会相应更新。本次监测周期内新冠负担估算所采用的方法已完成更新，以纳入新增监测站点、调整因子的季节性变化、修订后的门诊就诊量、发病例数与死亡数乘数比，以及估算方法的优化改进[1]。

**参考文献**
1. Koumans EHA、Khan D、Trejo I等；新冠负担估算工作组. 2022年10月至2024年9月美国新冠发病例数、门诊就诊量、住院人次与死亡数的估算负担. 《JAMA内科学》（JAMA Intern Med）. 2026年1月5日在线发表. <a href="https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2843383#250739811">Estimated Burden of COVID-19 Illnesses, Medical Visits, Hospitalizations, and Deaths in the US From October 2022 to September 2024 | Coronavirus (COVID-19) | JAMA Internal Medicine | JAMA Network</a><br>
2. Reed C、Chaves SS、Daily Kirley P等. 基于美国人群监测数据估算流感疾病负担. 《PLOS ONE》. 2015;10(3):e0118369. <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0118369">Estimating Influenza Disease Burden from Population-Based Surveillance Data in the United States | PLOS One</a><br>
3. Rolfes MA、Foppa IM、Garg S等. 美国季节性流感负担的年度估算：强化流感监测与防控的工具. 《Influenza and Other Respiratory Viruses》. 2018;12:132–137. <a href="https://doi.org/10.1111/irv.12486">https://doi.org/10.1111/irv.12486</a><br>
4. Tokars JI、Rolfes MA、Foppa IM、Reed C. 美国疫苗接种避免流感病例数估算方法的评估与更新. 《Vaccine》. 2018;36(48):7331-7337. doi:10.1016/j.vaccine.2018.10.026<br>
5. Collier SA、Deng L、Adam EA等. 美国传染性水源性疾病的负担与直接医疗成本估算. 《Emerging Infectious Diseases》. 2021年1月;27(1):140-149. doi: 10.3201/eid2701.190676. PMID: 33350905; PMCID: PMC7774540.<br>
6. Reed C、Kim IK、Singleton JA等. 2013-2014流感季美国疫苗接种避免的流感发病与住院病例估算. 《发病率与死亡率周报》（MMWR Morb Mortal Wkly Rep）. 2014年12月12日;63(49):1151-4. https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6349a2.htm<br>
7. Reed C、Angulo FJ、Swerdlow DL等. 2009年4月至7月美国2009年甲型H1N1大流行的患病率估算. 《Emerging Infectious Diseases》. 2009;15(12):2004-2007. <a href="https://dx.doi.org/10.3201/eid1512.091413">https://dx.doi.org/10.3201/eid1512.091413</a><br>
8. Devine

搜集汇总

背景与挑战

背景概述

该数据集提供美国自2024年呼吸道季节开始以来的COVID-19负担初步每周估计，涵盖疾病、门诊就诊、住院和死亡等关键指标。数据基于COVID-NET监测系统的实验室确认住院病例，每周更新并包含估计范围，具有初步性和动态调整特点，反映了COVID-19影响的持续监测和评估。