Baena-Díez José Miguel, Pinnegar Harriet Phyllis, Paredes-Millán Mileydy Katterin, Plaza-Cerrato Laura, Palomino-Español Elena, Cots Josep María
Centro de Atención Primaria La Marina, Instituto Catalán de la Salud, Barcelona, Spain.
IDIAP Jordi Gol, Instituto Catalán de la Salud, Barcelona, Spain.
Med Clin (Engl Ed). 2021 May 7;156(9):444-446. doi: 10.1016/j.medcle.2020.11.018. Epub 2021 Mar 19.
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 m) 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.
在建议居家隔离和检疫后，使用电话监测方案研究与新型冠状病毒2型感染患者密切接触者的感染发生率。
队列研究，纳入124名年龄大于15岁的患者，这些患者在就诊时无症状，曾与新型冠状病毒2型感染的确诊或疑似病例有过密切接触（<2米）。干预措施包括居家隔离和检疫2周，在接触后的第2、4、7和14天通过电话联系。感兴趣的事件是出现与新型冠状病毒2型感染相符的症状。
平均年龄为45.1岁（女性占55.6%）；共拨打328次电话（每位患者平均2.6次）。经过2周的随访，6名患者出现症状，其中3名通过血清学或聚合酶链反应确诊（2.4%，95%置信区间：0.8-6.9）。
居家隔离和检疫2周后，密切接触者中新型冠状病毒2型感染的发生率较低。
