Research Topics
| Richard NjouomSummaryAffiliation: Centre Pasteur du Cameroun Country: Cameroon Publications
| Collaborators
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Detail Information
Publications
Hepatitis C virus prevalence and genetic diversity among pregnant women in Gabon, central AfricaGuy Roger Ndong-Atome
Laboratoire de Virologie, Centre International de Recherches Médicales CIRMF, BP 769, Franceville, Gabon
BMC Infect Dis 8:82. 2008..The prevalence and genetic diversity of HCV in pregnant women in Gabon, central Africa, is not known. We therefore evaluated the prevalence and the circulating genotypes of HCV in a large population cohort of pregnant women...- Crosses prior to parthenogenesis explain the current genetic diversity of tropical plant-parasitic Meloidogyne species (Nematoda: Tylenchida)Mireille Fargette
IRD, UMR 1062 CBGP, Campus International de Baillarguet, CS30016, 34988 Montferrier sur Lez, France
Infect Genet Evol 10:807-14. 2010..Risk management strategies and tools must thus consider this complexity when designing quarantine implementation, resistance breeding programmes or molecular diagnostic... - Predominance of hepatitis C virus genotype 4 infection and rapid transmission between 1935 and 1965 in the Central African RepublicRichard Njouom
Laboratoire de Virologie, Centre Pasteur du Cameroun, Yaounde, Cameroon
J Gen Virol 90:2452-6. 2009..The hypothesis of a massive iatrogenic transmission during interventions for the control of endemic tropical diseases is discussed... - Highly pathogenic avian influenza virus subtype H5N1 in ducks in the Northern part of CameroonRichard Njouom
Laboratoire de Virologie, Centre Pasteur du Cameroun, Yaounde, Cameroon
Vet Microbiol 130:380-4. 2008..Analysis of NA sequences of the virus demonstrated that it is closely related to the H5N1 isolates from Northern Nigeria, Sudan and Ivory Coast, suggesting a common virus ancestor... - Circulation of human influenza viruses and emergence of Oseltamivir-resistant A(H1N1) viruses in Cameroon, Central AfricaRichard Njouom
Laboratory of Virology, Centre Pasteur of Cameroon, Yaounde, Cameroon
BMC Infect Dis 10:56. 2010..The objective of this study was to assess the prevalence of influenza viruses circulating in Yaounde, Cameroon and determine their antigenic and genetic characteristics... - Detection and characterization of hepatitis B virus strains from wild-caught gorillas and chimpanzees in Cameroon, Central AfricaRichard Njouom
Laboratoire de Virologie, Centre Pasteur du Cameroun, Yaounde, Cameroon
Infect Genet Evol 10:790-6. 2010..We demonstrated the existence of gorillas' specific HBV strains distinct but related to those found in chimpanzees living in the same habitat in Cameroon, providing substantial evidence of species association of HBV in NHPs... - The hepatitis C virus epidemic in Cameroon: genetic evidence for rapid transmission between 1920 and 1960Richard Njouom
Laboratoire de Virologie, Centre Pasteur du Cameroun, BP 1274 Yaounde, Cameroon
Infect Genet Evol 7:361-7. 2007.... - A cost-effective algorithm for the diagnosis of Hepatitis C virus infection and prediction of HCV viremia in CameroonRichard Njouom
Laboratoire de Virologie, Centre Pasteur du Cameroun, Yaounde, Cameroon
J Virol Methods 133:223-6. 2006..These results suggest an algorithm using ImmunoComb II HCV as a first test to screen anti-HCV positive subjects, and Hexagon HCV as a second test to discriminate between viremic and non-viremic HCV seropositive subjects... - Evaluation of core and NS4B synthetic peptide-based immunoassays for the detection of hepatitis C virus antibodies in clinical samples from Cameroon, Central AfricaRichard Njouom
Service de Virologie, Centre Pasteur du Cameroun, BP 1274 Yaounde, Cameroon
J Clin Virol 49:61-4. 2010..OBJECTIVE OF THIS STUDY: To evaluate the performance of HCV core and NS4B peptide-based immunoassays in the serodiagnosis of HCV infection in Cameroon subjects... - Transmission of hepatitis C virus among spouses in Cameroon and the Central African RepublicRichard Njouom
Centre Pasteur du Cameroun, Yaounde, Cameroon
J Med Virol 83:2113-8. 2011..Inter-spouse transmission may have contributed to the high prevalence among elderly populations of Central Africa since some patients infected during healthcare subsequently transmitted the virus to their spouse... - Efficacy and safety of peginterferon alpha-2a/ribavirin in treatment-naive Cameroonian patients with chronic hepatitis CRichard Njouom
Laboratoire de Virologie, Centre Pasteur du Cameroun, Yaounde, Cameroon
J Med Virol 80:2079-85. 2008..Virus subtype may influence the treatment outcome, since there is a great genetic diversity within Cameroonian HCV-1 and -4 genotypes... - Distribution and heterogeneity of hepatitis C genotypes in hepatitis patients in CameroonChristophe Pasquier
Laboratoire de Virologie, Variabilité Virale, Hopital Purpan, TSA, Toulouse, France
J Med Virol 77:390-8. 2005..HCV Genotypes 1 and 4 are very heterogeneous in Cameroon, perhaps due to ancient infections. The homogeneity of HCV Genotype 2 indicates its more recent introduction from western Africa... - Low risk of mother-to-child transmission of hepatitis C virus in Yaounde, Cameroon: the ANRS 1262 studyRichard Njouom
Centre Pasteur du Cameroun, Yaound, Cameroun; Laboratoire de Virologie, CHU Toulouse Purpan, Toulouse, France
Am J Trop Med Hyg 73:460-6. 2005..None of those screened at 6 weeks and 6 months of age were HCV-RNA positive. The failure to detect HCV vertical transmission suggests that the mother-to-child transmission (MTCT) is not a major route of HCV transmission in Cameroon... - High rate of hepatitis C virus infection and predominance of genotype 4 among elderly inhabitants of a remote village of the rain forest of South CameroonRichard Njouom
Laboratoire de Virologie, Centre Pasteur du Cameroun, Yaound, Cameroun, France
J Med Virol 71:219-25. 2003..The results suggest a cohort effect with an old, possibly iatrogenic, group exposure rather than a continuous exposure. A more in-depth population-based epidemiological study is needed to address this issue further... - Hepatitis C virus infection among pregnant women in Yaounde, Cameroon: prevalence, viremia, and genotypesRichard Njouom
Laboratoire de Virologie, Centre Pasteur du Cameroun, Yaounde, Cameroon
J Med Virol 69:384-90. 2003..The percentage of HCV seropositive pregnant women who had circulating HCV RNA was similar to that observed in Europe. Several HCV genotypes were found in Cameroon... - Hepatitis B and C virus infections in the three Pygmy groups in CameroonYacouba Foupouapouognigni
Service de Virologie, Centre Pasteur du Cameroun, BP 1274 Yaounde, Cameroon
J Clin Microbiol 49:737-40. 2011..6%). Phylogenetic analyses showed cocirculation of two HBV genotypes, HBV-A3 and -E. Taken together, our results suggest different epidemiological scenarios concerning HBV and HCV infections in this population... - Variable epidemic histories of hepatitis C virus genotype 2 infection in West Africa and CameroonRegis Pouillot
Centre Pasteur du Cameroun, Yaounde, Cameroon
Infect Genet Evol 8:676-81. 2008..This comparative genetic analysis indicates that Cameroon HCV-2 strains are derived from West African strains and that HCV-2 has undergone radically different epidemiological histories in the two regions... - Hepatitis C virus infection in cameroon: A cohort-effectEric Nerrienet
Centre Pasteur du Cameroun, Yaounde, Cameroun
J Med Virol 76:208-14. 2005..This clearly indicates a cohort effect for which the seroprevalence trends are clearly related with the year of birth, rather than the age. The highest prevalence was observed among people born around 1940... - High prevalence and predominance of hepatitis delta virus genotype 1 infection in CameroonYacouba Foupouapouognigni
Service de Virologie, Centre Pasteur du Cameroun, P O Box 1274, Yaounde, Cameroon
J Clin Microbiol 49:1162-4. 2011..Phylogenetic analyses showed the presence of HDV-1, HDV-5, HDV-6, and HDV-7 genotypes. These results enrich the limited data on HDV prevalence and molecular diversity in Cameroon... - Assessment of HIV-1 subtyping for Cameroon strains using phylogenetic analysis of pol gene sequencesRichard Njouom
Laboratoire de Virologie, CHU Toulouse Purpan, Place Dr Baylac, TAS40031 31059 Cedex, Toulouse, France
J Virol Methods 110:1-8. 2003..However, it can be a useful method for HIV-1 subtyping, provided that the gene is amplifiable... - Full-length genome sequences of hepatitis C virus subtype 4fFatma Hmaied
Service de Virologie, CHU de Toulouse, Institut Fédératif de Biologie, F 31059 Toulouse, France
J Gen Virol 88:2985-90. 2007..It is important to know the full-length sequences of HCV-4 subtypes in order to classify them correctly and to obtain more detailed knowledge about HCV epidemiology and sensitivity to interferon... - A low proportion of HBeAg among HBsAg-positive pregnant women with known HIV status could suggest low perinatal transmission of HBV in CameroonAnfumbom KW Kfutwah
Virology Service, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, BP 1274 Yaounde, Cameroon
Virol J 9:62. 2012..abstract:.. - Simian foamy virus transmission from apes to humans, rural CameroonSara Calattini
Institut Pasteur, Paris, France
Emerg Infect Dis 13:1314-20. 2007..6%) of those who had had contact with monkeys. These data demonstrate efficient transmission of SFVs to humans in natural settings in central Africa, specifically following ape bites, and viral persistence in the human host...