MSMR. 2020 Dec;27(12):2-8.
The U.S. Secretary of Health and Human Services declared a public health emergency in the U.S. on 31 January 2020 in response to the spread of coronavirus disease 2019 (COVID-19). On 20 March 2020, the President of the U.S. proclaimed that the COVID-19 outbreak in the U.S. constituted a national emergency, retroactive to 1 March 2020. Between 1 January and 30 September 2020, a total of 53,048 Military Health System (MHS) beneficiaries were identified as confirmed or probable cases of COVID-19 infection. The majority of cases were male (69.1%) and 45.4% were aged 20-29 years. The demographic and clinical characteristics of these cases varied by beneficiary type (active component service members, recruits, Reserve/Guard, dependents, retirees, and cadets). Of the total cases, 35.8% had been diagnosed with at least 1 of the comorbidities of interest, and 20.0% had been diagnosed with 2 or more comorbidities. The most common comorbidities present in COVID-19 cases were any cardiovascular diseases(12.7%), obesity or overweight (11.1%), metabolic diseases (10.5%), hypertension (9.9%), neoplasms (7.9%), any lung diseases (7.5%), substance use disorders, including nicotine dependence (5.4%), and asthma (3.2%). There were a total of 1,803 hospitalizations (3.4%) and 84 deaths (0.2%).
2020 年 1 月 31 日，美国卫生与公众服务部部长宣布美国因 2019 年冠状病毒病（COVID-19）的传播而进入公共卫生紧急状态。2020 年 3 月 20 日，美国总统宣布美国 COVID-19 疫情构成国家紧急状态，追溯至 2020 年 3 月 1 日。2020 年 1 月 1 日至 9 月 30 日期间，共有 53048 名军人健康系统（MHS）受益人员被确定为 COVID-19 感染的确诊或疑似病例。大多数病例为男性（69.1%），45.4%的年龄在 20-29 岁之间。这些病例的人口统计学和临床特征因受益类型（现役军人、新兵、预备役/国民警卫队、家属、退休人员和学员）而异。在总病例中，35.8%至少被诊断出患有 1 种感兴趣的合并症，20.0%被诊断出患有 2 种或更多合并症。COVID-19 病例中最常见的合并症是任何心血管疾病（12.7%）、肥胖或超重（11.1%）、代谢疾病（10.5%）、高血压（9.9%）、肿瘤（7.9%）、任何肺部疾病（7.5%）、物质使用障碍，包括尼古丁依赖（5.4%）和哮喘（3.2%）。共有 1803 例住院（3.4%）和 84 例死亡（0.2%）。
