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Volume 26, Number 9—September 2020
Research Letter

Asymptomatic SARS-CoV-2 Infection in Nursing Homes, Barcelona, Spain, April 2020

Blanca Borras-Bermejo1, Xavier Martínez-Gómez1, María Gutierrez San Miguel, Juliana Esperalba, Andrés Antón, Elisabet Martin, Marta Selvi, María José Abadías, Antonio Román, Tomàs Pumarola, Magda CampinsComments to Author , and Benito Almirante
Author affiliations: Vall d’Hebron Hospital Universitari, Barcelona, Spain (B. Borras-Bermejo, X. Martínez-Gómez, M. Gutierrez-San Miguel, J. Esperalba, A. Antón, M.J. Abadías, A. Román, T. Pumarola, M. Campins, B. Almirante); Universitat Autònoma de Barcelona, Bellaterra, Spain (X. Martínez-Gómez, A. Antón, A. Román, T. Pumarola, M. Campins, B. Almirante); Servei Atenció Primària Muntanya, Barcelona (E. Martin); Centre d’Atenció Primària Sant Andreu, Barcelona (M. Selvi)

Main Article


SARS-CoV-2 test results for residents and staff of 69 nursing homes, Barcelona, Spain, April 2020*


Positive, N = 768
Negative, N = 2,446
Positive, N = 403
Negative, N = 2,252
Asymptomatic 486 (69.7) 1,727 (89.6) 144 (55.8) 1,311 (86.6)
Symptomatic‡ 211 (30.3) 200 (10.4) 114 (44.2) 203 (13.4)

*Results include all residents and staff who were in the facility the day of screening intervention. Testing was by reverse transcription PCR. SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.
†Percentage calculated over those with symptom information available; it was missing for 590 (18.4%) residents and 883 (33.3%) staff members.
‡A person was considered symptomatic if fever or respiratory symptoms were present at time of assessment, or at any moment in the preceding 14 days.

Main Article

1These first authors contributed equally to this article.

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Page updated: August 20, 2020
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