• José Miguel Baena-Díez, Harriet Phyllis Pinnegar, Mileydy Katterin Paredes-Millán, Laura Plaza-Cerrato, Elena Palomino-Español, and Josep María Cots.
• Centro de Atención Primaria La Marina, Instituto Catalán de la Salud, Barcelona, España; IDIAP Jordi Gol, Instituto Catalán de la Salud, Barcelona, España; Grupo de Epidemiología Cardiovascular y Genética, Instituto de Investigación Médica IMIM-Hospital del Mar, Barcelona, España. Electronic address: josemibaena@gmail.com.
• Med Clin (Barc). 2021 May 7; 156 (9): 444-446.

ObjectiveTo study the incidence of infection in close contacts with patiens with SARS-CoV-2 infection using a telephone monitoring protocol after the recommendation of isolation and quarantine at home.Patients And MethodsCohort study, with 124 patients older than 15 years, included consecutively, asymptomatic at the time of the consultation, who had had close contact (<2 meters) with confirmed or possible cases of SARS-CoV-2 infection. The intervention consisted of 2 weeks of home isolation and quarantine, contacting by phone on days, 2, 4, 7 and 14 after the contact. The event of interest was the appereance of symptoms compatible with SARS-CoV-2 infection.ResultsThe average age was 45.1 years (55.6% women); 328 phone calls were made (average 2.6 calls for patient). After 2 weeks of follow-up, 6 patients developed symptoms, confirming serologically or by PCR in 3 of them (2.4%, CI 95%: 0.8-6.9).ConclusionsThe incidence of SARS-CoV-2 infection in close contacts is low 2 weeks after home isolation and quarantine at home.Copyright © 2020 Elsevier España, S.L.U. All rights reserved.

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