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.
Centro de Atención Primaria La Marina, Instituto Catalán de la Salud, Barcelona, España.
Med Clin (Barc). 2021 May 7;156(9):444-446. doi: 10.1016/j.medcli.2020.11.003. Epub 2020 Dec 3.
To 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.
Cohort 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.
The 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).
The incidence of SARS-CoV-2 infection in close contacts is low 2 weeks after home isolation and quarantine at home.
通过在家隔离和检疫建议后的电话监测协议，研究与 SARS-CoV-2 感染患者密切接触者的感染发生率。
本队列研究纳入了 124 名年龄大于 15 岁的患者，他们在就诊时无症状，与确诊或疑似 SARS-CoV-2 感染病例有密切接触（<2 米）。干预措施包括在家隔离和检疫 2 周，在接触后第 2、4、7 和 14 天通过电话联系。主要观察指标是出现与 SARS-CoV-2 感染相符的症状。
平均年龄为 45.1 岁（55.6%为女性）；共进行了 328 次电话随访（平均每位患者 2.6 次）。随访 2 周后，有 6 名患者出现症状，其中 3 名患者（2.4%，95%CI：0.8-6.9）通过血清学或 PCR 确认感染。
在家隔离和检疫 2 周后，密切接触者中 SARS-CoV-2 感染的发生率较低。
