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Volume 32, Number 8—August 2026

Dispatch

Filovirus Surveillance in Communities Bordering Equatorial Guinea, Marburg Outbreak, Cameroon, 2023

Jill-Léa Ramassamy, Flaubert Auguste Mba Djondzo1, Innocent Ndong Bass, Ginette Edoul, Dowbiss Meta-Djomsi, Nadine Lamare, Maeliss Champagne, Célestin Godwe, Kono Léon, Cavour Tadjouteu, Audrey Lacroix, Nicole Vidal, Guillaume Thaurignac, Elisabeth Dibongue, Eric Delaporte, Martine Peeters, Ahidjo Ayouba2, and Charles Kouanfack2
Author affiliation: Université de Montpellier, IRD, INSERM, Montpellier, France (J.-L. Ramassamy, M. Champagne, A. Lacroix, N. Vidal, G. Thaurignac, E. Delaporte, M. Peeters, A. Ayouba); Centre de Recherche sur les Maladies Emergentes et Réémergentes (CREMER), Yaoundé, Cameroon (F.A.M. Djondzo, I.N. Bass, G. Edoul, D. Meta-Djomsi, N. Lamare, C. Godwe, A. Ayouba, C. Kouanfack); University of Yaounde, Yaoundé (K. Léon); Yaoundé Central Hospital, Yaoundé (C. Tadjouteu); Cameroon National OneHealth Platform, Yaoundé (E. Dibongue); University of Dschang, Dschang, Cameroon (C. Kounanfack)

Main Article

Figure 1

Study area of One Health surveillance for MARV in communities bordering Equatorial Guinea Marburg outbreak, Cameroon, 2023. A) Locations in Equatorial Guinea with confirmed and probable MVD cases during the outbreak (5) and study area in Cameroon (black box) with integrated surveillance sites (triangle, circle, and square icons). Inset map shows location of study area in Africa. B) Human survey villages; circle size indicates number of participants (n = 181 total participants). Stars indicate villages with MARV seropositive participants, defined as reactivity to >2 antigens (1.7%, n = 3 participants). C) Bat capture sites with species composition (n = 288 bats). Rousettus aegyptiacus bats, the MARV reservoir species, were most abundant (54.9%, n = 158 bats). We did not detect MARV RNA by using panfilovirus reverse transcription PCR of 589 bat samples. MARV, Marburg virus; MVD, Marburg virus disease.

Figure 1. Study area of One Health surveillance for MARV in communities bordering Equatorial Guinea Marburg outbreak, Cameroon, 2023. A) Locations in Equatorial Guinea with confirmed and probable MVD cases during the outbreak (5) and study area in Cameroon (black box) with integrated surveillance sites (triangle, circle, and square icons). Inset map shows location of study area in Africa. B) Human survey villages; circle size indicates number of participants (n = 181 total participants). Stars indicate villages with MARV seropositive participants, defined as reactivity to >2 antigens (1.7%, n = 3 participants). C) Bat capture sites with species composition (n = 288 bats). Rousettus aegyptiacus bats, the MARV reservoir species, were most abundant (54.9%, n = 158 bats). We did not detect MARV RNA by using panfilovirus reverse transcription PCR of 589 bat samples. MARV, Marburg virus; MVD, Marburg virus disease.

Main Article

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Main Article

1These first authors contributed equally to this article.

2These senior authors contributed equally to this article.

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