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美国疾病控制和预防中心的研究显示,美国COVID-19病例的真实数量可能是报道的6 - 24倍

2020-7-22 11:23

 

2020年5月14日,美国纽约布鲁克林区的新冠肺炎流行期间,人们在新冠肺炎社区检测中心等待。(新华社Michael Nagle摄)


对大多数站点而言,SARS-CoV-2感染病例的数量可能是COVID-19报告病例数的10倍以上。根据美国疾病控制和预防中心的一项研究,每个有血清感染的地方估计感染人数是COVID-19病例报告数据的6到24倍。


华盛顿,7月21日(新华社)——周二公布的一项新研究显示,美国新冠肺炎病例的真实数量可能是报道的6 - 24倍。


美国疾病控制和预防中心(CDC)对16,025份残留临床标本进行了横断面研究,估计有可检测出SARS-CoV-2抗体的人群比例从旧金山湾区的1%到纽约市的6.9%不等。


该研究对从所有年龄段的人获得的方便的残余血清样本进行了血清学检测。血清收集于3月23日至5月12日,由两家商业实验室公司进行常规临床检测。


发表在《美国医学会杂志内科学》(JAMA Internal Medicine)上的这项研究表示:“我们对每个位点的研究结果表明,在整个研究期间,感染病例的数量远远大于报告的病例数量。”


对大多数站点而言,SARS-CoV-2感染病例的数量可能是COVID-19报告病例数的10倍以上。根据这项研究,每个位点的大多数人可能都没有检测到SARS-CoV-2抗体。


该研究发现,每个有血清感染的地区估计感染人数是COVID-19病例报告数据的6至24倍。

 

People wait at a COVID-19 community testing center during the COVID-19 pandemic in the Brooklyn borough of New York, the United States, May 14, 2020. (Photo by Michael Nagle/Xinhua)

For most sites, it is likely that greater than 10 times more SARS-CoV-2 infections occurred than the number of reported COVID-19 cases. Six to 24 times more infections were estimated per site with seroprevalence than with COVID-19 case report data, according to a U.S. CDC study.

WASHINGTON, July 21 (Xinhua) -- The true number of COVID-19 cases in the United States may be 6 to 24 times higher than reported, according to a new study published Tuesday.

In the cross-sectional study of 16,025 residual clinical specimens, the U.S. Centers for Disease Control and Prevention (CDC) estimated the proportion of persons with detectable SARS-CoV-2 antibodies ranged from 1 percent in the San Francisco Bay area to 6.9 percent in New York City.

The study performed serologic testing on a convenience sample of residual sera obtained from persons of all ages. The serum was collected from March 23 through May 12, for routine clinical testing by two commercial laboratory companies.

"Our results for each site suggest that the number of infections was much greater than the number of reported cases throughout the study period," said the study, published in JAMA Internal Medicine.

For most sites, it is likely that greater than 10 times more SARS-CoV-2 infections occurred than the number of reported COVID-19 cases. Most persons in each site likely had no detectable SARS-CoV-2 antibodies, according to the study.

Six to 24 times more infections were estimated per site with seroprevalence than with COVID-19 case report data, the study found.

 

来自: xinhua