<p>We included only RT-PCR-confirmed EVD cases from the Ministry of Health line list during September–November 2022. We calculated days from patient symptom onset to ETU entry (‘delay’). We compared the median delay by status as a known contact before diagnosis using the Wilcoxon rank-sum test. We also compared age and sex between case-patients who had delays ≤2 days (‘short’) and delays ≥3 days (‘long’) using the chi-square test. We conducted key informant interviews with 17 EVD case-patients, who had short (n=8) and long (n=9) delays to qualitatively assess factors associated with delays. Data were analysed using content analysis to derive themes.</p>