EpiStack

O-26 - The natural reservoir and the index case exposure route were not identified by the 1976 Ebola investigation

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Properties8
type
observation
id
O-26
statement
The 1976 investigation did not identify the animal reservoir or the index case's original source of infection: a search between Bumba Zone and the Sudan (Nzara/Maridi) outbreak failed to find a definite link, and the disease was hitherto unknown in the region, leaving the antecedent zoonotic spillover unresolved by the outbreak record.
link_state
linked
source
S-88 - International Commission 1978 — Ebola haemorrhagic fever in Zaire, 1976
locator
Discussion, Bull. WHO 1978
quote
Intensive search for cases in the area of north-eastern Zaire between the Bumba Zone and the Sudan frontier near Nzara and Maridi failed to detect definite evidence of a link between an epidemic of the disease in that country and the outbreak near Bumba.
data_basis

Note: the source-node summary’s ‘asymptomatic seropositive villagers with no hospital/known-case contact’ detail is NOT established by this 1976 report (no such community serosurvey is reported in it); only the hospital-amplification and unresolved-source findings are extracted.

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