MMWR Morb Mortal Wkly Rep. 2021 Nov 12;70(45):1575-1578. doi: 10.15585/mmwr.mm7045a3.
Influenza causes considerable morbidity and mortality in the United States. Between 2010 and 2020, an estimated 9-41 million cases resulted in 140,000-710,000 hospitalizations and 12,000-52,000 deaths annually (1). As the United States enters the 2021-22 influenza season, the potential impact of influenza illnesses is of concern given that influenza season will again coincide with the ongoing COVID-19 pandemic, which could further strain overburdened health care systems. The Advisory Committee on Immunization Practices (ACIP) recommends routine annual influenza vaccination for the 2021-22 influenza season for all persons aged ≥6 months who have no contraindications (2). To assess the potential impact of the COVID-19 pandemic on influenza vaccination coverage, the percentage change between administration of at least 1 dose of influenza vaccine during September-December 2020 was compared with the average administered in the corresponding periods in 2018 and 2019. The data analyzed were reported from 11 U.S. jurisdictions with high-performing state immunization information systems.* Overall, influenza vaccine administration was 9.0% higher in 2020 compared with the average in 2018 and 2019, combined. However, in 2020, the number of influenza vaccine doses administered to children aged 6-23 months and children aged 2-4 years, was 13.9% and 11.9% lower, respectively than the average for each age group in 2018 and 2019. Strategic efforts are needed to ensure high influenza vaccination coverage among all age groups, especially children aged 6 months-4 years who are not yet eligible to receive a COVID-19 vaccine. Administration of influenza vaccine and a COVID-19 vaccine among eligible populations is especially important to reduce the potential strain that influenza and COVID-19 cases could place on health care systems already overburdened by COVID-19.
在美国，流感会导致相当多的发病率和死亡率。在 2010 年至 2020 年期间，据估计每年有 900 万至 4100 万例流感病例导致 14 万至 71 万例住院和 1.2 万至 5.2 万例死亡（1）。随着美国进入 2021-22 流感季节，鉴于流感季节将再次与持续的 COVID-19 大流行同时发生，流感疾病的潜在影响令人担忧，这可能会进一步使不堪重负的医疗保健系统承受更大压力。免疫实践咨询委员会（ACIP）建议 2021-22 流感季节所有无禁忌症的≥6 个月的人常规接种年度流感疫苗（2）。为评估 COVID-19 大流行对流感疫苗接种率的潜在影响，将 2020 年 9 月至 12 月期间至少接种一剂流感疫苗的比例变化与 2018 年和 2019 年同期的平均值进行了比较。分析的数据来自 11 个具有高绩效州免疫信息系统的美国司法管辖区。*总体而言，2020 年流感疫苗接种率比 2018 年和 2019 年的平均值高 9.0%，但 2020 年，6-23 个月龄和 2-4 岁儿童的流感疫苗接种剂量分别比 2018 年和 2019 年的平均水平低 13.9%和 11.9%。需要采取战略努力确保所有年龄段的人都能获得高流感疫苗接种率，特别是尚未有资格接种 COVID-19 疫苗的 6 个月至 4 岁儿童。为合格人群接种流感疫苗和 COVID-19 疫苗尤其重要，可以降低流感和 COVID-19 病例对已经不堪重负的医疗保健系统造成的潜在压力。
