印度两个州的COVID-19流行病学和传播动态
Ramanan Laxminarayan1,2,3, Brian Wahl3,4, Shankar Reddy Dudala5
1Center for Disease Dynamics, Economics and Policy, New Delhi, India.
概括
在印度,严重急性呼吸系统综合征冠状病毒2 (SARS-CoV-2) 的传播和死亡率显示,年轻人和同龄人接触者感染的风险更高. 来自低资源国家的更多数据对于有效控制COVID-19至关重要.
科学领域:
- 流行病学
- 传染性疾病
- 公共卫生
背景情况:
- 大多数2019年新冠肺炎 (COVID-19) 病例发生在资源较低的国家,但这些地区的疾病流行病学知之甚少.
- 了解严重急性呼吸道综合征冠状病毒2 (SARS-CoV-2) 传播和死亡率对于全球公共卫生战略至关重要.
研究的目的:
- 在高发病率,低资源环境中调查SARS-CoV-2传播途径和死亡率.
- 分析不同年龄组和接触者之间的感染概率和病例死亡率.
主要方法:
- 对印度泰米尔纳德和安得拉邦84,965例COVID-19确诊病例的575,071人数据进行了回顾性分析.
- 根据接触风险和年龄计算感染概率.
- 确定不同年龄人口的病例死亡率.
主要成果:
- 感染概率在4. 7% (低风险) 到10. 7% (高风险) 的接触者之间.
- 同年龄的接触者感染风险最高.
- 病例死亡率从0. 05% (年龄为5-17岁) 到16. 6% (年龄为85岁以上) 不同.
- 与高收入国家相比,即使在人口调整后,COVID-19病例和死亡人数也集中在年轻人群中.
结论:
- 低资源地区的COVID-19流行病学与高收入国家有很大差异,年轻人受影响不成比例.
- 迫切需要来自低资源国家的初级数据,以提供有针对性和有效的控制措施.
- 调查结果强调了在应对流行病时考虑特定年龄的传播动态和风险因素的重要性.
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