Nigeria's 62 Ebola contacts complete 21 days of monitoring with no secondary transmission, the NCDC and WHO say
All 62 contacts of Nigeria's imported Ebola case have completed 21 days of monitoring with none falling ill, the Nigeria Centre for Disease Control and Prevention said on Friday, and the World Health Organization's director-general congratulated Nigeria on the milestone. Thirteen contacts reported fever or other symptoms during monitoring but all tested negative, and seven alerts across five states were also investigated and cleared. Completing contact monitoring does not end the outbreak: a 42-day countdown without a new case must finish before the WHO can declare it over.

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Key points
- All 62 contacts of Nigeria's imported Ebola case finished 21 days of monitoring with none falling ill.
- Thirteen contacts developed symptoms during monitoring; every one tested negative, as did seven alerts across five states.
- The WHO's director-general congratulated Nigeria — and the 42-day countdown to an end-of-outbreak declaration is still running.
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- The NCDC chief warned the milestone is not the end: vigilance continues, with Ebola still spreading in DR Congo.
What happened
Nigeria confirmed its first Ebola case in more than a decade in October — a Swiss woman who had travelled from Uganda and arrived in Abuja via Addis Ababa; she was evacuated to Switzerland on 26 October, recovered and has since tested negative and been discharged. The case was of the Bundibugyo strain, the species driving the large outbreak in DR Congo.
Contact tracing is the core of Ebola control: 21 days covers the virus's maximum incubation period, so a clean completion means the imported case produced no chain of transmission among the people known to have been exposed.
What we know / what we don't know yet
What we know
- The monitoring completion, the negative tests and the WHO's congratulations are on the record from the NCDC briefing and Tedros's statement.
- The outbreak is not yet declared over — the 42-day countdown must finish first.
What we don't know yet
- Whether the countdown finishes without a new case — the earliest declaration date given is 7 December, and it depends on no new confirmed or probable case appearing.
Claim by claim
Show all claims (4)
Why this label: The completion is the NCDC director-general Jide Idris's own briefing, reported by Reuters and BusinessDay in the same terms.
On the ladder: a claim earns Verified from primary evidence, or from two independent sources that do not copy each other.
Why this label: Tedros's words are his own published statement, reported by Punch and carried by Abuja Politico; he added that the WHO would keep supporting Nigeria through the second half of the 42-day countdown.
On the ladder: a claim earns Verified from primary evidence, or from two independent sources that do not copy each other.
Why this label: The symptom and alert figures are from Idris's briefing as reported by Reuters; The Eastleigh Voice's report of the same briefing agrees.
On the ladder: a claim earns Verified from primary evidence, or from two independent sources that do not copy each other.
Why this label: Both the NCDC and the WHO make the same point: the countdown is in its second half and surveillance continues, with Nigeria's health minister having pointed to 7 December as the earliest declaration date if no new case appears.
On the ladder: a claim earns Verified from primary evidence, or from two independent sources that do not copy each other.
Why it matters
Nigeria stopped an imported case of the Bundibugyo strain — for which there is no approved vaccine — from becoming a domestic outbreak. The remaining test is time: the 42-day countdown, against the background of the much larger DR Congo outbreak that keeps sending cases across borders.
Background
Nigeria confirms its first Ebola case in more than a decade, an imported Bundibugyo case in Abuja.
The patient is evacuated to Switzerland, where she recovers and later tests negative.
The last of the 62 contacts completes monitoring and is discharged; no secondary transmission.
Update history
No silent edits. Every change is written here, with its time.
- Latest
Published in Checking state — the monitoring outcome is settled on the NCDC's briefing and the WHO's statement, and the 42-day countdown to an end-of-outbreak declaration is still running.