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Retrospective Screening for SARS-CoV-2 RNA in California, USA, Late 2019
Retrospective Screening for SARS-CoV-2 RNA in California, USA, Late 2019 EMERGING INFECTIOUS DISEASES Hogan, C. A., Garamani, N., Sahoo, M. K., Huang, C., Zehnder, J., Pinsky, B. A. 2020; 26 (10): 2487–88Abstract
To investigate the possibility of earlier cases of severe acute respiratory syndrome coronavirus 2 infection than previously recognized, we retrospectively tested pooled samples from 1,700 persons with respiratory signs/symptoms seen at Stanford Health Care, Palo Alto, California, USA, during the last 2 months of 2019. We found no evidence of earlier infection.
View details for DOI 10.3201/eid2610.202296
View details for Web of Science ID 000572522100035
View details for PubMedID 32620178
View details for PubMedCentralID PMC7510744