Routine testing of close contacts of confirmed COVID-19 cases - National COVID-19 Contact Management Programme, Ireland, May to August 2020.
Public Health
; 190: 147-151, 2021 Jan.
Article
en En
| MEDLINE
| ID: mdl-33386140
ABSTRACT
OBJECTIVES:
The objective of this study was to inform public health practitioners who are designing, adapting and implementing testing and tracing strategies for Coronavirus disease (COVID-19) control. STUDYDESIGN:
The study design is monitoring and evaluation of a national public health protection programme.METHODS:
All close contacts of laboratory-confirmed cases of COVID-19 identified between the 19th May and 2nd August were included; secondary attack rates and numbers needed to test were estimated.RESULTS:
Four thousand five hundred eighty six of 7272 (63%) close contacts of cases were tested with at least one test. The secondary attack rate in close contacts who were tested was 7% (95% Confidence Interval [CI] 6.3 - 7.8%). At the 'day 0' test, 14.6% (95% CI 11.6-17.6%) of symptomatic close contacts tested positive compared with 5.2% (95% CI 4.4-5.9%) of asymptomatic close contacts.CONCLUSIONS:
The application of additional symptom-based criteria for testing in this high-incidence population (close contacts) is of limited utility because of the low negative predictive value of absence of symptoms.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Trazado de Contacto
/
Prueba de COVID-19
/
SARS-CoV-2
/
COVID-19
Tipo de estudio:
Incidence_studies
/
Prognostic_studies
Límite:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
País/Región como asunto:
Europa
Idioma:
En
Revista:
Public Health
Año:
2021
Tipo del documento:
Article
País de afiliación:
Irlanda