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abstractpubmed· Abstract 2020· item PMID:32574139

Asymptomatic SARS-CoV-2 Infection in Nursing Homes, Barcelona, Spain, April 2020. During the coronavirus disease pandemic in Spain, from April 10-24, 2020, a total of 5,869 persons were screened for severe acute respiratory syndrome coronavirus 2 at nursing homes. Among residents, 768 (23.9%) tested positive; among staff, 403 (15.2%). Of those testing positive, 69.7% of residents and 55.8% of staff were asymptomatic.