Understand

Glossary

The words used in the bulletins and on this site, as they are used here. Sixteen entries, from confirmed case to situation report.

Alert
A report of a suspected case or death to be checked. It is “validated” when it meets the suspected-case definition.
Bundibugyo
One of the ebolavirus species, distinct from the Zaire species of previous outbreaks. No licensed vaccine targets it.
Case fatality
The share of confirmed cases who have died. It is calculated on cumulative totals since the start of the outbreak.
Community death
The death of a confirmed case outside a treatment centre, at home or on the way. It signals a patient the response did not reach in time.
Confirmed case
A person whose infection is established by a laboratory test. Only confirmed cases are counted on this site.
Contact
A person exposed to a patient: family, carer, neighbour. They are followed for 21 days, the maximum incubation period.
Contact follow-up
The share of contacts actually seen each day by the teams. WHO aims for 95%; in the DRC the rate hovers around 85%.
Epicentre
The zone where the outbreak starts and where it is concentrated. In 2026, Bunia and Ituri.
ETC
Ebola treatment centre: the facility where patients are isolated and cared for. “Patients in isolation” means the patients who are there.
Health zone
The basic unit of the Congolese health system, 519 for the whole country. Each zone is divided into health areas.
Probable case
A patient or deceased person who showed signs of the disease and had a link to a confirmed case, without a tested sample.
Recovered
A patient discharged from an ETC after two negative tests 48 hours apart.
Response
All the actions taken to stop the outbreak: finding patients, testing and treating them, following up the people who were in contact with them, vaccinating, burying the dead safely and informing the public.
Safe and dignified burial
A burial carried out by a trained team, because the body of a deceased person remains contagious.
SitRep
The daily situation report of the INSP, the main source of this site. Each bulletin has a number.
Suspected case
A person whose symptoms suggest Ebola, awaiting a test. Becomes confirmed, probable or ruled out.