Influenza Group, ICMR-National Institute of Virology, Pune, Maharashtra, India.
Epidemiology Group, ICMR-National Institute of Virology, Pune, Maharashtra, India.
Indian J Med Res. 2021 May;153(5&6):542-545. doi: 10.4103/ijmr.IJMR_442_21.
The present study describes the epidemiological characteristics of 3,08,259 suspected cases of COVID-19 from the Pune district, India. The samples were referred for COVID-19 testing between January 24, 2020 and April 30, 2021. Demographic and clinical data were extracted from the ICMR-portal as a single dataset and analyzed. Of the 3,08,259 samples tested, 2,63,833 (85.6%) were asymptomatic. Symptomatic cases ratio in the first and the second COVID-19 wave was 1:2. Among symptomatic cases, cough was the most common complaint, followed by fever. Among the COVID-19 positives, one-fifth were asymptomatic, highlighting the necessity for close contact tracing even among apparently healthy contacts. The second wave of COVID-19 had double the per cent of symptomatic individuals as compared to the first wave.
本研究描述了印度浦那地区 3,08,259 例疑似 COVID-19 病例的流行病学特征。这些样本是在 2020 年 1 月 24 日至 2021 年 4 月 30 日期间送检进行 COVID-19 检测的。从 ICMR 门户提取了人口统计学和临床数据作为一个数据集进行分析。在检测的 3,08,259 个样本中，2,63,833 个（85.6%）为无症状。第一波和第二波 COVID-19 的有症状病例比例为 1:2。在有症状的病例中，咳嗽是最常见的症状，其次是发热。在 COVID-19 阳性病例中，五分之一为无症状，这凸显了即使是在表面健康的接触者中也有必要进行密切接触者追踪。与第一波相比，第二波 COVID-19 的有症状个体比例增加了一倍。
