在SARS-CoV-2 Omicron变种和Delta变种之间,疾病严重程度的比较
Laura Peyton Ellis1, Olivia Hess2, Khoa Le Anh Huynh3
1Obstetrics and Gynecology Residency Program, University of Connecticut, Farmington, CT, USA.
Antimicrobial stewardship & healthcare epidemiology : ASHE
|November 29, 2023
概括
COVID-19的三角洲变种在急诊室患者中比Omicron变种更严重,特别是在未接种疫苗的人和患有潜在健康状况的人中. 这些发现凸显了流行病影响的持续差异.
科学领域:
- 传染性疾病 传染性疾病
- 公共卫生 公共卫生
- 流行病学 流行病学
背景情况:
- "COVID-19"疫情对边缘化社区产生了不成比例的影响.
- "三角洲"和"奥米克朗"变种引发了人们对感染力和疾病严重性增加的担忧.
- 了解变种特定的疾病严重程度对于公共卫生反应至关重要.
研究的目的:
- 为了比较感染Omicron变种和感染Delta变种的成年人之间的COVID-19疾病严重程度.
- 为了分析向学术,安全网医院的急诊部呈现的患者的严重程度.
- 为了确定严重的COVID-19结果的风险因素.
主要方法:
- 使用电子医疗记录进行回顾性队列研究.
- 患者在2021年9月1日至2022年1月31日期间检测出SARS-CoV-2阳性.
- 倾向性得分匹配用于比较Delta和Omicron变种病例.
主要成果:
- 确定了279个与Delta和Omicron变种病例的倾向分数匹配的对.
- 无论疫苗接种情况如何,Delta变种感染与比Omicron变种感染更严重的疾病有关.
- 没有接种疫苗的个人,那些患有并发病 (脏,肝脏,呼吸系统疾病,癌症) 和少数群体的人群经历了更高的疾病严重程度.
结论:
- 这项研究强化了COVID-19对弱势群体的不成比例影响,包括有色人种和患有慢性疾病的人.
- 调查结果强调需要有针对性的公共卫生干预措施来解决健康不平等问题.
- 接种疫苗,即使是两剂,也趋向于减少疾病的严重程度.
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