INRB

The Institut National de Recherche Biomédicale (INRB) is the Democratic Republic of Congo's national biomedical research and reference laboratory, headquartered in Kinshasa. It was founded in 1984 under the DRC Ministry of Public Health and serves as the country's primary authority on pathogen identification, sequencing and outbreak confirmation. INRB houses BSL-3 and BSL-4-adjacent laboratory capacity — rare in sub-Saharan Africa — that enables in-country confirmation of Category A pathogens including filoviruses and haemorrhagic fever agents, reducing dependence on international reference laboratories in Lyon or Atlanta for species-level identification.

INRB gained international prominence during the 2014-16 West African Ebola epidemic for its role supporting DRC's parallel surveillance: DRC had seven known Ebola outbreaks before the West Africa event and its response infrastructure, anchored by INRB, was more experienced than most. In 2018, INRB was central to the laboratory response to the Equateur Province Ebola outbreak, processing samples and supporting the ring-vaccination programme that controlled that outbreak in under three months. During the 2018-20 Kivu/Ituri Ebola epidemic — the most complex outbreak in DRC history — INRB ran mobile laboratory units deployed to operational zones alongside WHO and US CDC technical teams, a capacity that reduced confirmation turnaround from days to hours.

INRB also maintains the DRC Arm of the GISAID sequence-sharing architecture and collaborates with the Institut Pasteur Network, US CDC, and the WHO Global Influenza Surveillance and Response System on pathogen genomics. Its director reports to the DRC Ministry of Public Health.

INRB confirmed the current outbreak as Bundibugyo ebolavirus on Thursday 14 May 2026, nine days after WHO received its first signal. The laboratory processed 20 samples, returning 13 positive results — a 65 per cent positivity rate that epidemiologists interpret as evidence of uncontrolled local transmission. Africa CDC cited this INRB result in its 16 May regional coordination statement, and it underpinned the WHO PHEIC declared on 17 May.

The nine-day gap between the 5 May WHO signal and the 14 May species confirmation reflects genuine logistical constraints rather than institutional failure: Ituri Province is roughly 1,700 kilometres from Kinshasa by road, with no direct highway. Samples collected in the Bunia, Rwampara and Mongbwalu health zones must be transported under cold chain through conflict-affected terrain before INRB can process them. Panel experts at the 15 May specialist discussion noted that the 9-day confirmation window is operationally reasonable given those constraints. INRB also ran its confirmation against the backdrop of the 2018-20 Kivu outbreak, where it developed protocols specifically for working with samples from armed-conflict zones.

For the current outbreak, INRB is the single most important diagnostic asset in the DRC response chain. With USAID's laboratory support infrastructure dismantled in early 2025, INRB is absorbing a workload that was previously shared with embedded US CDC technical teams, operating without the redundant surge capacity those teams provided.