World: Weekly Epidemiological Record (WER), 25 September 2026, Vol. 101, No. 38, 2026, 101, 221

Country: World Source: World Health Organization Please refer to the attached file. Highlighted Signals and Events During epidemiological week 38 (14 September to 20 September), WHO Public Health Intelligence (PHI) teams conducted digital event‑based surveillance (DEBS) to support the early detection and assessment of potential public health threats. During the reporting period, approximately 582 592 raw signals were scanned and triangulated through DEBS. From this large pool of signals, 37 signals and/or events met assessment thresholds and underwent further analysis and categorization. Of the 37 categorized signals, 35 represented unique signals. 23 signals and/or events were escalated for operational attention. In the reporting week, of the new events verified through PHI activities, none were in the public domain. One Rapid Risk Assessment was published during this reporting week. A summary of identified raw signals, assessed signals, and published outputs is presented in the tables below.

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