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Volume 11, Number 2—February 2005

Research

Wild Animal Mortality Monitoring and Human Ebola Outbreaks, Gabon and Republic of Congo, 2001–2003

Pierre Rouquet*Comments to Author , Jean-Marc Froment†1, Magdalena Bermejo‡1, Annelisa Kilbourne§, William Karesh§, Patricia Reed§, Brice Kumulungui*, Philippe Yaba*, André Délicat*, Pierre E. Rollin¶, and Eric M. Leroy#
Author affiliations: *Centre International de Recherches Médicales de Franceville, Franceville, Gabon; †European Union Project Cybertracker Monitoring Programme, Libreville, Gabon; ‡Universidad de Barcelona, Barcelona, Spain; §Wildlife Conservation Society, Bronx, New York, USA; ¶Centers for Disease Control and Prevention, Atlanta, Georgia, USA; #Institut de Recherche pour le Développement, Franceville, Gabon; 1These authors contributed equally to this work.

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Table

Results of laboratory analysis of animal carcasses found in forest between Gabon and the Republic of Congo, November 2001–June 2003*

Animal Location
 Date Tissue Death PCR Ag IHC
Area GPS
Ebola+ by 2 or 3 tests
Gorilla Zadié 0,7055N 14,2747E Nov 2001 Muscle§ 5 d + + +
Gorilla Lossi 0,2395N 14,4938E Dec 2002 Muscle§ 8 d + + +
Gorilla Lossi 0,2354N 14,4839E Dec 2002 Muscle§ 8 d + + +
Gorilla Mbanza 0,6987N 14,7029E Jun 2003 Muscle§ 5 d + + N/A
Chimp† Lossi 0,2387N 14,4885E Dec 2002 Muscle§ 3 d – + +
Chimp Lossi Feb 2003 Muscle¶ 10 d + + N/A
Ebola+ by 1 test
Gorilla Zadié 1,1669N 14,1650E Feb 2002 Bone marrow# 1 mo + N/A N/A
Gorilla†‡ Zadié 0,7310N 14,2644E Mar 2002 Bone# 3 wk + N/A N/A
Gorilla†‡ Zadié 0,7310N 14,2644E Mar 2002 Bone# 3 wk + N/A N/A
Gorilla Lossi 0,2348N 14,4852E Dec 2002 Bone# 2 wk + N/A N/A
Gorilla Lossi 0,2346N 14,4823E Dec 2002 Bone# 2 wk + N/A N/A
Gorilla Lossi 0,2987N 14,5075E Feb 2003 Muscle¶ 8 d – + N/A
Duiker Lossi 0,2293N 14,4892E Dec 2002 Bone# 2 wk + N/A N/A
Chimp† Lossi 0,2387N 14,4885E Dec 2002 Muscle¶ 12 h – + –
Tested and Ebola–
Gorilla‡ Zadié 0,6510N 14,2375E Mar 2002 Skull# 1 mo – N/A N/A
Duiker Lossi 0,2376N 14,4882E Dec 2002 Bone# 3 wk – N/A N/A
Duiker Lossi Jun 2003 Skin§ 2 d – – N/A
Cercopithecus cephus Lossi 0,2737N 14,5163E Feb 2003 Muscle§ 3 d – – N/A
Genet Zadié 0,6749N 13,8851E Nov 2001 Muscle¶ 5 d – – N/A
Genet Zadié 0,6771N 14,2937E Feb 2002 Muscle§ 2 d – – N/A
Sitatunga Zadié 0,9560N 13,7776E Apr 2002 Muscle§ 3 d – – N/A

*GPS, global positioning system (CyberTracker field computer); PCR, polymerase chain reaction; Ag, antigen detection; IHC, immunohistochemical tests; N/A, not applicable.
†Mother and infant.
‡1-month delay between the field and the laboratory and preserved in bad conditions.
§Sample found in good condition.
¶Sample found in poor condition.
#Sample found in very poor condition (bone only).

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