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| -Signs, Portents, and the Weather- |
| COVID-19 Antibody Seroprevalence in Santa Clara County, California |
| 2020-04-17 |
 [medRxiv] The population-weighted prevalence was 2.81% (95CI 2.24-3.37%). Under the three scenarios for test performance characteristics, the population prevalence of COVID-19 in Santa Clara ranged from 2.49% (95CI 1.80-3.17%) to 4.16% (2.58-5.70%). These prevalence estimates represent a range between 48,000 and 81,000 people infected in Santa Clara County by early April, 50-85-fold more than the number of confirmed cases. |
| Posted by:KBK |