The influence of case factors and system factors on the timeliness of testing and contact tracing for COVID-19 in The Netherlands.

ABSTRACT: Source and contact tracing (SCT) is essential to control the transmission of SARS-CoV-2, and the timeliness of SCT is crucial. As little is known about its real-world effectiveness, we investigated the timeliness of SCT in the Netherlands and its determinants. We used routine COVID-19 SCT data from all individuals who tested positive for SARS-CoV-2 at nine Dutch public health services between 1 June 2020 and 28 February 2021 (N = 384 591). We calculated median time intervals between SCT stages. We used multilevel logistic regression to study associations between case factors and system factors, and total SCT delay (symptom onset to SCT initiation >3 days), patient delay (symptom onset to making test appointment >1 day), and response delay (making test appointment to SCT initiation >2 days)

SUBMITTER: Bosdriesz JR 

PROVIDER: S-EPMC12529288 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature