2026-04-24
Index case onset (HCW, Bunia). Identified retrospectively.
2026-05-14
INSP SitRep begins. 246 suspected cases at first count. Already 16+ health zones affected.
2026-05-15
DRC outbreak declaration. First 13 cases confirmed by PCR.
2026-05-17
WHO declares PHEIC.
2026-05-18
First 3 BDBV genomes released on Pathoplexus.
2026-05-19
First Uganda cases confirmed (Kampala). Cross-border spread ~25 days after index onset.
2026-05-20
6 additional genomes on Pathoplexus (update 2).
2026-05-22
WHO DG Member State briefing.
2026-05-23
Cumulative reaches 1,000 total cases.
2026-05-27
Contacts traced: 2,417. 36 PCR machines deployed in 19 zones.
2026-05-28
WHO expert panel recommends MBP134, Maftivimab, remdesivir. 5 additional genomes. Mass reclassification: suspected cases 906→349.
2026-05-29
+53 new confirmed. Cumulative: 263 confirmed, 349 suspected. Confirmed deaths: 42.
2026-05-30
Net reclassification −25 confirmed (263→238). DRC MoH reports 1,028 suspected (separate operational count). SitRep 15+16 added to INRB-UMIE 2026-06-01.
2026-05-31
Large batch update: confirmed 238→321 (+83). Confirmed deaths: 48. Second post-reclassification stabilisation. WHO DON606.
2026-06-01
INRB-UMIE SitRep 17/18 published. Confirmed: 344; confirmed deaths cross 60 (reaches 60). Suspected: 289.
2026-06-02
Second major reclassification batch: total cases 633→569 (−64). Suspected cases drop 289→206. Confirmed deaths: 62.
2026-06-04
Large batch update: confirmed 363→452 (+89 in one day); confirmed deaths 62→82 (+20). Suggests multiple SitReps aggregated. WHO DON607.
2026-06-07
Confirmed deaths cross 100 (reaches 101). Confirmed cases: 550.
2026-06-08
+48 confirmed in one day (550→598). Confirmed deaths: 115. Suspected cases rise (94→138).
2026-06-11
Confirmed: 689; confirmed deaths: 139; suspected deaths: 64. Case fatality proportion 20.2%.
2026-06-13
Latest INRB-UMIE SitRep: 782 confirmed, 181 confirmed deaths, 136 suspected, 33 health zones reporting. Death proportion 23.1%.