Co-circulation of Plasmodium and Bacterial DNAs in Blood of Febrile and Afebrile Children from Urban and Rural Areas in Gabon

Gaël Mourembou Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes (URMITE), Aix Marseille Université, Marseille, France.
Ecole Doctorale Régionale d'Afrique Centrale, Franceville, Gabon.

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Sydney Maghendji Nzondo Unité de Parasitologie Médicale, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon.

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Angélique Ndjoyi-Mbiguino Département de Microbiologie, Laboratoire National de Référence IST/sida, Faculté de Médecine, Université des Sciences de la Santé, Libreville, Gabon.

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Jean Bernard Lekana-Douki Unité de Parasitologie Médicale, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon.
Département de Parasitologie Mycologie et de Médecine Tropicale, Université des Sciences de la Santé, Libreville, Gabon.

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Lady Charlène Kouna Unité de Parasitologie Médicale, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon.

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Pierre Blaise Matsiegui Centre de Recherches Médicales de la Ngounié, Fougamou, Gabon.

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Rella Zoleko Manego Centre de Recherches Médicales de la Ngounié, Fougamou, Gabon.

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Irene Pegha Moukandja Unité de Parasitologie Médicale, Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon.

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Alpha Kabinet Keïta Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes (URMITE), Aix Marseille Université, Marseille, France.

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Hervé Tissot-Dupont Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes (URMITE), Aix Marseille Université, Marseille, France.

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Florence Fenollar Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes (URMITE), Aix Marseille Université, Marseille, France.

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Didier Raoult Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes (URMITE), Aix Marseille Université, Marseille, France.

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Malaria is considered to be the most common etiology of fever in sub-Saharan Africa while bacteremias exist but are under assessed. This study aimed to assess bacteremias and malaria in children from urban and rural areas in Gabon. DNA extracts from blood samples of 410 febrile and 60 afebrile children were analyzed using quantitative polymerase chain reaction. Plasmodium spp. was the microorganism most frequently detected in febrile (78.8%, 323/410) and afebrile (13.3%, 8/60) children, (P < 0.001). DNA from one or several bacteria were detected in 15 febrile patients (3.7%) but not in the controls (P = 0.1). This DNA was more frequently detected as co-infections among febrile children tested positive for Plasmodium (4.6%, 15/323) than in those tested negative for Plasmodium (0%, 0/87; P = 0.04). The bacteria detected were Streptococcus pneumoniae 2.4% (10/410), Staphylococcus aureus 1.7% (7/410), Salmonella spp. 0.7% (3/410), Streptococcus pyogenes 0.2% (1/410) and Tropheryma whipplei 0.2% (1/410) only in febrile children. Coxiella burnetii, Borrelia spp., Bartonella spp., Leptospira spp., and Mycobacterium tuberculosis were not observed. This paper reports the first detection of bacteremia related to T. whipplei in Gabon and shows that malaria decreases in urban areas but not in rural areas. Co-infections in febrile patients are common, highlighting the need to improve fever management strategies in Gabon.

Author Notes

* Address correspondence to Didier Raoult, Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes (URMITE), Aix Marseille Université, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille 13005, France. E-mail: didier.raoult@gmail.com

Financial support: This work was supported by the Institut Hospitalo-Universitaire Méditerranée Infection.

Authors' addresses: Gaël Mourembou, Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes (URMITE), Aix Marseille Université, Marseille, France, and Ecole Doctorale Régionale d'Afrique Centrale, Franceville, Gabon, E-mail: gaelmourembou@yahoo.fr. Sydney Maghendji Nzondo, Lady Charlène Kouna, and Irene Pegha Moukandja, Unité de Parasitologie Médicale (UPARAM), Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon, E-mails: sydneymaghendji@yahoo.fr, kounaladycharlene@yahoo.fr, and moukandja@hotmail.com. Angélique Ndjoyi-Mbiguino, Département de Microbiologie, Laboratoire National de Référence IST/sida, Faculté de Médecine, Université des Sciences de la Santé, Libreville, Gabon, E-mail: labmicuss@gmail.com. Jean Bernard Lekana-Douki, Unité de Parasitologie Médicale (UPARAM), Centre International de Recherches Médicales de Franceville (CIRMF), Franceville, Gabon, and Département de Parasitologie Mycologie et de Médecine Tropicale, Université des Science de la Santé, Libreville, Gabon, E-mail: lekana_jb@yahoo.fr. Pierre Blaise Matsiegui and Rella Zoleko Manego, Centre de Recherches Médicales de la Ngounié, Fougamou, Gabon, E-mails: matsiegpb@yahoo.fr and manegorella@yahoo.fr. Alpha Kabinet Keïta, Hervé Tissot-Dupont, Florence Fenollar, and Didier Raoult, Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes (URMITE), Aix Marseille Université, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France, E-mails: kabinet1@hotmail.fr, herve.tissot-dupont@ird.fr, florence.fenollar@univ-amu.fr, and didier.raoult@gmail.com.

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