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Ndongo FA, Kana R, Nono MT, Noah JPYA, Ndzie P, Tejiokem MC, Biheng EH, Ndie J, Nkoa TA, Ketchaji A, Ngako JN, Penda CI, Bissek ACZK, Ndombo POK, Hawa HM, Msellati P, Lallemant M, Faye A. Association between mental disorders with detectable viral load and poor adherence to antiretroviral therapy among adolescents infected with Human Immunodeficiency Virus on follow-up at Chantal Biya Foundation, Cameroon. J Epidemiol Popul Health 2024; 72:202193. [PMID: 38523399 DOI: 10.1016/j.jeph.2024.202193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 10/11/2023] [Accepted: 10/30/2023] [Indexed: 03/26/2024]
Abstract
INTRODUCTION Perinatally HIV-Infected Adolescents (HIVIA) are more likely to have mental health problems than their uninfected peers. In resource-limited settings, mental health disorders are rarely taken into account in the care offered to HIVIA and have an impact on their routine follow-up. The objective of this study was to assess the baseline socio-demographic factors and mental health conditions associated with detectable viral load or poor ART adherence in HIVIA on ART followed at the Mother and Child Centre of the Chantal Biya Foundation in Yaoundé (CME-FCB), Cameroon. METHODS A cross-sectional study was conducted in HIVIA aged 10 to 19 years, followed at CME-FCB during the period from December 2021 to March 2022. Sociodemographic, clinical, and mental characteristics were collected using a structured questionnaire administered face-to-face by trained healthcare providers. The primary outcome was viral load ≥ 40 copies/mL in HIVIA on ART for at least six months. The secondary outcome was poor ART adherence, defined as ≥ 1 missed dose of antiretroviral therapy within the last past three days. The main exposure variables were mental health disorders, including the level of anxiety, depression and low self-esteem. RESULTS In total, 302 adolescents were interviewed, 159 (52.7 %) were girls and median age was 15.2 years (IQR: 12.0-17.5). Having missed at least 1 dose of ART drugs during the last 3 days before screening concerned 53 (35.0 %) cases. Of the 247 adolescents with an available viral load (VL) in the last 12 months prior to screening, 33 (26.7 %) had a VL ≥ 40 copies/mL. Among participating adolescents, 29.1 % presented with high or very high anxiety, 26.5 % with severe depression, 36.4 % with history of suicidal ideation, and 20.5 % low self-esteem. Low self-esteem was strongly associated with a higher risk of poor ART adherence (adjusted odds ratio(aOR) (95 % confidence interval (95 %CI)): 2.2 (1.1-4.3); p = 0.022). Living with the father (aOR (95 %CI): 0.6 (0.3-1.1); p = 0.085) or in a household with a televisor (aOR (95 %CI): 0.5 (0.2-1.1); p = 0.069) were slightly associated with a lower risk of poor adherence to ART. Having both parents alive (aOR (95 %CI): 0.4 (0.2-0.9); p = 0.031) or receiving ART with efavirenz or dolutegravir (aOR (95 %CI): 0.5 (0.2-0.9); p = 0.047) was strongly associated with a lower likelihood of having a detectable VL. Moreover, detectable viral load was slightly less frequent in adolescents whose household was equipped with a television (p = 0.084) or who were completely disclosed for HIV status (p = 0.070). CONCLUSION This study found that co-morbid low self-esteem had higher odds of poor ART adherence in HIVIA. Moreover, both poor ART adherence, and detectable viral load were associated with impaired life conditions in HIVIA.
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Affiliation(s)
- Francis Ateba Ndongo
- University of Garoua, Cameroon; Centre Mère-enfant, Fondation Chantal Biya, Yaounde, Cameroon; Ministry of Public Health, Yaounde, Cameroun.
| | - Rogacien Kana
- Media Convergence Consulting Office, Yaounde, Cameroon
| | - Marius Tchassep Nono
- Action for Youths and Family, Douala, Cameroon; University of Douala, Douala, Cameroon
| | | | | | | | | | - Justin Ndie
- Ministry of Public Health, Yaounde, Cameroun
| | | | | | | | | | | | | | | | - Philippe Msellati
- Research Institute for Sustainable Development (IRD), Abidjan, Côte d'Ivoire
| | - Marc Lallemant
- Programs for HIV Prevention and Treatment (PHPT) Foundation - Research Institute for Sustainable Development (IRD), Paris, France
| | - Albert Faye
- Hôpital Universitaire Robert Debré, Paris, France
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Ny Mioramalala DJ, Ratovoson R, Tagnouokam-Ngoupo PA, Abessolo Abessolo H, Mindimi Nkodo JM, Bouting Mayaka G, Tsoungui Atangana PC, Randrianarisaona F, Pélembi P, Nzoumbou-Boko R, Coti-Reckoundji CSG, Manirakiza A, Rahantamalala A, Randremanana RV, Tejiokem MC, Schoenhals M. SARS-CoV-2 Neutralizing Antibodies in Three African Countries Following Multiple Distinct Immune Challenges. Vaccines (Basel) 2024; 12:363. [PMID: 38675745 PMCID: PMC11054809 DOI: 10.3390/vaccines12040363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/16/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND The COVID-19 pandemic has affected Madagascar, Cameroon, and the Central African Republic (CAR), with each experiencing multiple waves by mid-2022. This study aimed to evaluate immunity against SARS-CoV-2 strains Wuhan (W) and BA.2 (BA.2) among healthcare workers (HCWs) in these countries, focusing on vaccination and natural infection effects. METHODS HCWs' serum samples were analyzed for neutralizing antibodies (nAbs) against W and BA.2 variants, with statistical analyses comparing responses between countries and vaccination statuses. RESULTS Madagascar showed significantly higher nAb titers against both strains compared to CAR and Cameroon. Vaccination notably increased nAb levels against W by 2.6-fold in CAR and 1.8-fold in Madagascar, and against BA.2 by 1.6-fold in Madagascar and 1.5-fold in CAR. However, in Cameroon, there was no significant difference in nAb levels between vaccinated and unvaccinated groups. CONCLUSION This study highlights the complex relationship between natural and vaccine-induced immunity, emphasizing the importance of assessing immunity in regions with varied epidemic experiences and low vaccination rates.
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Affiliation(s)
- Diary Juliannie Ny Mioramalala
- Institut Pasteur of Madagascar, Immunology of Infectious Diseases, Antananarivo 101, Madagascar; (D.J.N.M.); (F.R.); (A.R.)
| | - Rila Ratovoson
- Institut Pasteur of Madagascar, Epidemiology and Clinical Research, Antananarivo 101, Madagascar; (R.R.); (R.V.R.)
| | - Paul Alain Tagnouokam-Ngoupo
- Centre Pasteur du Cameroon, Epidemiology and Public Health, Yaoundé P.O. Box 1274, Cameroon; (P.A.T.-N.); (M.C.T.)
| | | | | | | | | | - Fanirisoa Randrianarisaona
- Institut Pasteur of Madagascar, Immunology of Infectious Diseases, Antananarivo 101, Madagascar; (D.J.N.M.); (F.R.); (A.R.)
| | - Pulchérie Pélembi
- Institut Pasteur of Bangui, Epidemiology, Bangui P.O. Box 923, Central African Republic; (P.P.); (R.N.-B.); (C.S.G.C.-R.); (A.M.)
| | - Romaric Nzoumbou-Boko
- Institut Pasteur of Bangui, Epidemiology, Bangui P.O. Box 923, Central African Republic; (P.P.); (R.N.-B.); (C.S.G.C.-R.); (A.M.)
| | | | - Alexandre Manirakiza
- Institut Pasteur of Bangui, Epidemiology, Bangui P.O. Box 923, Central African Republic; (P.P.); (R.N.-B.); (C.S.G.C.-R.); (A.M.)
| | - Anjanirina Rahantamalala
- Institut Pasteur of Madagascar, Immunology of Infectious Diseases, Antananarivo 101, Madagascar; (D.J.N.M.); (F.R.); (A.R.)
| | - Rindra Vatosoa Randremanana
- Institut Pasteur of Madagascar, Epidemiology and Clinical Research, Antananarivo 101, Madagascar; (R.R.); (R.V.R.)
| | - Mathurin Cyrille Tejiokem
- Centre Pasteur du Cameroon, Epidemiology and Public Health, Yaoundé P.O. Box 1274, Cameroon; (P.A.T.-N.); (M.C.T.)
| | - Matthieu Schoenhals
- Institut Pasteur of Madagascar, Immunology of Infectious Diseases, Antananarivo 101, Madagascar; (D.J.N.M.); (F.R.); (A.R.)
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Tejiokem MC, Abessolo HA, Nkodo JM, Ouethy M, Mayaka GB, Touha Y, Dikoume UA, Tchatchueng‐Mbougua JB, Noumbissi DC, Ndjeukam WT, Mbarga HOO, Ngoupo PAT, Moussi C, Garoua BH, Njouom R, Richard V. High seroprevalence of severe acute respiratory syndrome coronavirus 2 among healthcare workers in Yaoundé, Cameroon after the first wave of Covid-19 pandemic and associated factors. Influenza Other Respir Viruses 2024; 18:e13239. [PMID: 38342486 PMCID: PMC10859237 DOI: 10.1111/irv.13239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 11/19/2023] [Accepted: 11/27/2023] [Indexed: 02/13/2024] Open
Abstract
BACKGROUND Healthcare workers (HWs) are at a high risk of exposure to emerging health threats. Following the first wave of the coronavirus disease 2019 pandemic in Cameroon, we explored the presence and persistence of naturally acquired antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the factors associated with seropositivity in HWs. METHODS Staff at two referral hospitals in Yaoundé or two Health District Hospitals in Obala and Mbalmayo were included in a 6-month prospective cohort analysis or cross-sectional survey, respectively. Seroprevalence and associated factors were determined, and Kaplan-Meier curves and Cox proportional hazards models were used to assess antibody persistence or positive seroconversion over time. RESULTS From August 2020 to March 2021, 426 HWs (median age: 31 years, interquartile range: 27-37 years; 66.4% female) were enrolled. The overall seroprevalence of anti-SARS-CoV-2 antibodies was 54.0% (95% confidence interval [CI]: 49.1-58.8) and was significantly different between study sites (p = 0.04). Of the 216 HWs included in the 6-month cohort, 109 (50.5%) HWs were seropositive at inclusion; the probability of persistent antibodies or of becoming seropositive was 93.8% (95% CI: 84.2-100) and 78.9% (95% CI: 61.7-88.4), respectively. Seroconversion was associated with study site and occupation but not with infection prevention and control (IPC) practices. CONCLUSIONS We observed high seroprevalence of SARS-CoV-2 antibody and seroconversion among HWs associated with occupational risk. This suggests low compliance to the COVID-19 control measures. Continued training and implementation of IPC measures and accelerated preparedness are needed to better tackle future threats.
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Affiliation(s)
| | - Hermine Abessolo Abessolo
- Centre Spécialisé de Prise en Charge des Patients Covid‐19annexe 2 Hôpital Central de YaoundéYaoundéCameroon
| | | | | | | | | | | | | | | | | | | | | | - Charlotte Moussi
- Délégation Régionale de la Santé Publique du CentreYaoundéCameroon
| | - Bonaventure Hollong Garoua
- Centre Spécialisé de Prise en Charge des Patients Covid‐19annexe 2 Hôpital Central de YaoundéYaoundéCameroon
| | - Richard Njouom
- Service de virologieCentre Pasteur du CamerounYaoundéCameroon
| | - Vincent Richard
- Direction Internationale, Institut Pasteur, Réseau International des Instituts PasteurParisFrance
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Tejiokem MC, Barry A, Ratovoson R, Yambiyo B, Hamidou Lazoumar R, Herrant M, Madaha E, Richard V. African countries from the Pasteur Network reexamine their syndromic sentinel surveillance system associated with household contact within the AFROSCREEN program. Front Public Health 2024; 11:1292435. [PMID: 38249384 PMCID: PMC10796548 DOI: 10.3389/fpubh.2023.1292435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/18/2023] [Indexed: 01/23/2024] Open
Abstract
Surveillance to better detect and respond to new pathogens remains a major challenge for global public health. The Pasteur Network recently held a brainstorming workshop located in Cameroon attended by Pasteur epidemiological teams from Niger, Central African Republic (CAR), Cameroon, Senegal, and Madagascar to discuss how the Pasteur Network in Africa could use the lessons of COVID-19 to set-up a pilot sentinel surveillance scheme given its expertise and involvement during the pandemic. The possibility of coupling sentinel syndromic and biological surveillance already implemented for influenza surveillance with the recent sequencing capacity put in place by the AFROSCREEN program prompted us to consider strengthening surveillance tools to target "Pathogen X" detection in Africa. The perspective project provided by the Pasteur Network teams and shared with other partners of the AFROSCREEN program will target strengthening of the diagnosis of severe acute respiratory infections (IRAS) and the surveillance of IRAS, the evaluation of the impact of SARS-CoV-2 on the epidemiology of IRAS, and the addition of the detection of new pathogens, called "Pathogen X," based on sequencing capacity and epidemiological criteria from One Health approaches.
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Affiliation(s)
| | | | - Rila Ratovoson
- Institut Pasteur de Madagascar, Antananarivo, Madagascar
| | - Brice Yambiyo
- Institut Pasteur de Bangui, Bangui, Central African Republic
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Sandie AB, Ngo Sack F, Medi Sike CI, Mendimi Nkodo J, Ngegni H, Ateba Mimfoumou HG, Lobe SA, Choualeu Noumbissi D, Tchuensou Mfoubi F, Tagnouokam Ngoupo PA, Ayong L, Njouom R, Tejiokem MC. Spread of SARS-CoV-2 Infection in Adult Populations in Cameroon: A Repeated Cross-Sectional Study Among Blood Donors in the Cities of Yaoundé and Douala. J Epidemiol Glob Health 2023; 13:266-278. [PMID: 37129837 PMCID: PMC10152017 DOI: 10.1007/s44197-023-00102-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 04/11/2023] [Indexed: 05/03/2023] Open
Abstract
Over a period of about 9 months, we conducted three serosurveys in the two major cities of Cameroon to determine the prevalence of SARS-COV-2 antibodies and to identify factors associated with seropositivity in each survey. We conducted three independent cross-sectional serosurveys of adult blood donors at the Central Hospital in Yaoundé (CHY), the Jamot Hospital in Yaoundé (JHY) and at the Laquintinie Hospital in Douala (LHD) who consented in writing to participate. Before blood sampling, a short questionnaire was administered to participants to collect their sociodemographic and clinical characteristics. We included a total of 743, 1202, and 1501 participants in the first (January 25-February 15, 2021), second (May 03-28, 2021), and third (November 29-December 31, 2021) surveys, respectively. The adjusted seroprevalence increased from 66.3% (95% CrI 61.1-71.3) in the first survey to 87.2% (95% CrI 84.0-90.0) in the second survey, and 98.4% (95% CrI 96.8-99.7) in the third survey. In the first survey, study site, participant occupation, and comorbid conditions were associated with SARS-CoV-2 seropositivity, whereas only study site remained associated in the second survey. None of the factors studied was significantly associated with seropositivity in the third survey. Together, the data suggest a rapid initial spread of SARS-CoV-2 in the study population, independent of the sociodemographic parameters assessed.
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Affiliation(s)
- Arsène Brunelle Sandie
- Service d’épidémiologie Et de Santé Publique, Centre Pasteur du Cameroun, 451, Street 2005, Yaounde 2, P.O. Box: 1274, Yaoundé, Cameroon
- African Population and Health Research Center, Dakar, Senegal
| | | | | | | | | | | | | | - Diane Choualeu Noumbissi
- Service d’épidémiologie Et de Santé Publique, Centre Pasteur du Cameroun, 451, Street 2005, Yaounde 2, P.O. Box: 1274, Yaoundé, Cameroon
| | - Fabrice Tchuensou Mfoubi
- Service d’épidémiologie Et de Santé Publique, Centre Pasteur du Cameroun, 451, Street 2005, Yaounde 2, P.O. Box: 1274, Yaoundé, Cameroon
| | | | - Lawrence Ayong
- Service de Paludisme, Centre Pasteur du Cameroun, Yaoundé, Cameroon
| | - Richard Njouom
- Service de Virologie, Centre Pasteur du Cameroun, Yaoundé, Cameroon
| | - Mathurin Cyrille Tejiokem
- Service d’épidémiologie Et de Santé Publique, Centre Pasteur du Cameroun, 451, Street 2005, Yaounde 2, P.O. Box: 1274, Yaoundé, Cameroon
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Sandie AB, Tejiokem MC, Faye CM, Hamadou A, Abah AA, Mbah SS, Tagnouokam-Ngoupo PA, Njouom R, Eyangoh S, Abanda NK, Diarra M, Ben Miled S, Tchuente M, Tchatchueng-Mbougua JB, Tchatchueng-Mbougua JB. Observed versus estimated actual trend of COVID-19 case numbers in Cameroon: A data-driven modelling. Infect Dis Model 2023; 8:228-239. [PMID: 36776734 PMCID: PMC9905042 DOI: 10.1016/j.idm.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 02/02/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023] Open
Abstract
Controlling the COVID-19 outbreak remains a challenge for Cameroon, as it is for many other countries worldwide. The number of confirmed cases reported by health authorities in Cameroon is based on observational data, which is not nationally representative. The actual extent of the outbreak from the time when the first case was reported in the country to now remains unclear. This study aimed to estimate and model the actual trend in the number of COVID -19 new infections in Cameroon from March 05, 2020 to May 31, 2021 based on an observed disaggregated dataset. We used a large disaggregated dataset, and multilevel regression and poststratification model was applied prospectively for COVID-19 cases trend estimation in Cameroon from March 05, 2020 to May 31, 2021. Subsequently, seasonal autoregressive integrated moving average (SARIMA) modeling was used for forecasting purposes. Based on the prospective MRP modeling findings, a total of about 7450935 (30%) of COVID-19 cases was estimated from March 05, 2020 to May 31, 2021 in Cameroon. Generally, the reported number of COVID-19 infection cases in Cameroon during this period underestimated the estimated actual number by about 94 times. The forecasting indicated a succession of two waves of the outbreak in the next two years following May 31, 2021. If no action is taken, there could be many waves of the outbreak in the future. To avoid such situations which could be a threat to global health, public health authorities should effectively monitor compliance with preventive measures in the population and implement strategies to increase vaccination coverage in the population.
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Key Words
- ACF, Autocorrelation Function
- AIC, Akaike information criterion
- COVID-19
- COVID-19, Coronavirus Disease 2019
- Cameroon
- Forecasting
- MAE, Mean Absolute Error
- MAPE, Mean Absolute Percentage Error
- MASE, Mean Absolute Scaled Error
- ME, Mean Error
- MPE, Mean Percentage Error
- MRP, Multilevel Regression and Post-stratification
- Observed
- PACF, Partial Autocorrelation Function
- PLACARD, Platform for Collecting, Analyzing and Reporting Data
- Post-stratification
- SARIMA, Seasonal Autoregressive integrated moving average
- SARS-CoV-2, Severe Acute Respiratory Syndrome Coronavirus 2
- Underestimated
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Affiliation(s)
- Arsène Brunelle Sandie
- African Population and Health Research Center, West Africa Regional Office, Dakar, Senegal,Centre Pasteur du Cameroon, membre du Réseau International des Instituts Pasteur, Cameroon,Corresponding author. African Population and Health Research Center, West Africa Regional Office, Dakar, Senegal.
| | | | - Cheikh Mbacké Faye
- African Population and Health Research Center, West Africa Regional Office, Dakar, Senegal
| | - Achta Hamadou
- Centre Pasteur du Cameroon, membre du Réseau International des Instituts Pasteur, Cameroon
| | - Aristide Abah Abah
- Direction de la lutte contre les Maladies épidémiques et les pandémies, Ministère de la santé publique, Cameroon
| | - Serge Sadeuh Mbah
- Centre Pasteur du Cameroon, membre du Réseau International des Instituts Pasteur, Cameroon
| | | | - Richard Njouom
- Centre Pasteur du Cameroon, membre du Réseau International des Instituts Pasteur, Cameroon
| | - Sara Eyangoh
- Centre Pasteur du Cameroon, membre du Réseau International des Instituts Pasteur, Cameroon
| | - Ngu Karl Abanda
- Centre Pasteur du Cameroon, membre du Réseau International des Instituts Pasteur, Cameroon
| | | | | | - Maurice Tchuente
- Fondation pour la recherche l'ingénierie et l'innovation, Cameroon,IRD UMI 209 UMMISCO, University of Yaounde I, P.O. Box 337, Yaounde, Cameroon
| | - Jules Brice Tchatchueng-Mbougua
- Centre Pasteur du Cameroon, membre du Réseau International des Instituts Pasteur, Cameroon,IRD UMI 209 UMMISCO, University of Yaounde I, P.O. Box 337, Yaounde, Cameroon
| | - Jules Brice Tchatchueng-Mbougua
- Centre Pasteur du Cameroon, membre du Réseau International des Instituts Pasteur, Cameroon,IRD UMI 209 UMMISCO, University of Yaounde I, P.O. Box 337, Yaounde, Cameroon
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Ndongo FA, Kana R, Nono MT, Noah JPYA, Ndzie P, Tejiokem MC, Biheng EH, Ndie J, Nkoa TA, Ketchaji A, Pamen JB, Penda CI, Bissek ACZK, Ndombo POK, Hawa HM, Lallemant M, Faye A. [Problèmes de santé mentale chez les adolescents camerounais infectés par le VIH par voie verticale]. Rev Epidemiol Sante Publique 2023; 71:101422. [PMID: 36706703 DOI: 10.1016/j.respe.2022.101422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/07/2022] [Accepted: 12/16/2022] [Indexed: 01/27/2023] Open
Abstract
INTRODUCTION Adolescents living with HIV are more likely to experience mental health challenges compared to their peers who do not have HIV. However, there is a lack of data regarding the mental health of adolescents living with HIV in Cameroon. Understanding risk factors and protective factors that influence mental health amongst adolescents is critical for effective programming. The purpose of this study was to estimate the prevalence and the factors associated with depression in adolescents infected with HIV and receiving ART in a Cameroonian referral hospital. METHODS This was a cross-sectional study which enrolled adolescents perinatally infected with HIV, aged 10-19 years, on antiretroviral treatment and cared for at "Centre Mère et Enfant de la Fondation Chantal Biya", Yaounde, Cameroon. Structured questionnaires, including validated French versions of the Coopersmith Child Depression Inventory (CDI), the Multidimensional Anxiety Scale for Children (MASC) and the Coopersmith Self Esteem Inventory (SEI), were administered to the study participants by the healthcare providers. RESULTS All in all, 302 adolescents were recruited in the study at a median age of 15.2 years (interquartile range : 12.0 - 17.5), including 159 (52.7 %) girls. Both parents had died for 57 (18.9 %) adolescents ; only the father was alive for 64 (21.2 %) ; only the mother was alive for 48 (15.9 %), both parents were alive for 133 (44.0 %). This study found prevalence of 26.5 % for severe depression, 36.4 % for suicidal ideation, 29.1 % for high/very high anxiety, and 20.5 % for low self-esteem. No factor was found significantly associated with severe depression but there was a trend towards decreased risk of severe depression among adolescents whose mother was alive [OR= 0.4 (0.1-1.0), p = 0.084]. CONCLUSION This study found that elevated depression, anxiety, and low self-esteem symptoms were prevalent among Cameroonian adolescents perinatally infected with HIV. Services and systems should go beyond clinical management of HIV and address the psychosocial and mental health of adolescents. The indicators of mental health among adolescents infected with HIV should be included in HIV program reporting.
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Affiliation(s)
- Francis Ateba Ndongo
- University of Garoua, Cameroon; Centre Mère-enfant, Fondation Chantal Biya, Yaounde, Cameroon; Ministry of Public Health, Yaounde, Cameroun.
| | - Rogacien Kana
- Media Convergence Consulting Office, Yaounde, Cameroon
| | | | | | | | | | | | - Justin Ndie
- Ministry of Public Health, Yaounde, Cameroun
| | | | | | | | | | | | | | | | - Marc Lallemant
- Programs for HIV Prevention and Treatment (PHPT) Foundation -Research Institute for Sustainable Development (IRD), Paris, France
| | - Albert Faye
- Hôpital Universitaire Robert Debré, Paris, France
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Tchatchueng-Mbougua JB, Messanga Essengue LL, Septoh Yuya FJ, Kamtchogom V, Hamadou A, Sadeuh-Mbah SA, Tagnouokam-Ngoupo PA, Tchuente M, Njouom R, Eyangoh S, Tejiokem MC. Improving the management and security of COVID 19 diagnostic test data with a digital platform in resource-limited settings: The case of PlaCARD in Cameroon. PLOS Digit Health 2022; 1:e0000113. [PMID: 36812594 PMCID: PMC9931268 DOI: 10.1371/journal.pdig.0000113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 08/26/2022] [Indexed: 11/07/2022]
Abstract
During the COVID 19 pandemic, round-the-clock demand for COVID -19 laboratory tests exceeded capacity, placing a significant burden on laboratory staff and infrastructure. The use of laboratory information management systems (LIMS) to streamline all phases of laboratory testing (preanalytical, analytical, and postanalytical) has become inevitable. The objective of this study is to describe the architecture, implementation, and requirements of PlaCARD, a software platform for managing patient registration, medical specimens, and diagnostic data flow, as well as reporting and authentication of diagnostic results during the 2019 coronavirus pandemic (COVID -19) in Cameroon. Building on its experience with biosurveillance, CPC developed an open-source, real-time digital health platform with web and mobile applications called PlaCARD to improve the efficiency and timing of disease-related interventions. PlaCARD was quickly adapted to the decentralization strategy of the COVID 19 testing in Cameroon and, after specific user training, was deployed in all COVID 19 diagnostic laboratories and the regional emergency operations center. Overall, 71% of samples tested for COVID 19 by molecular diagnostics in Cameroon from 05 March 2020 to 31 October 2021 were entered into PlaCARD. The median turnaround time for providing results was 2 days [0-2.3] before April 2021 and decreased to 1 day [1- 1] after the introduction of SMS result notification in PlaCARD. The integration of LIMS and workflow management into a single comprehensive software platform (PlaCARD) has strengthened COVID 19 surveillance capabilities in Cameroon. PlaCARD has demonstrated that it can be used as a LIMS for managing and securing test data during an outbreak.
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Affiliation(s)
- Jules Brice Tchatchueng-Mbougua
- Epidemiology and public Heath Unit, Centre Pasteur du Cameroun, membre du Réseau International des Instituts Pasteur (RIIP), Yaounde, Cameroon
- IRD UMI 209 UMMISCO, University of Yaounde I, P.O. Box 337 Yaounde, Cameroon
- * E-mail:
| | - Loique Landry Messanga Essengue
- Epidemiology and public Heath Unit, Centre Pasteur du Cameroun, membre du Réseau International des Instituts Pasteur (RIIP), Yaounde, Cameroon
| | - Francis Jaudel Septoh Yuya
- Epidemiology and public Heath Unit, Centre Pasteur du Cameroun, membre du Réseau International des Instituts Pasteur (RIIP), Yaounde, Cameroon
| | - Vanessa Kamtchogom
- Epidemiology and public Heath Unit, Centre Pasteur du Cameroun, membre du Réseau International des Instituts Pasteur (RIIP), Yaounde, Cameroon
| | - Achta Hamadou
- Epidemiology and public Heath Unit, Centre Pasteur du Cameroun, membre du Réseau International des Instituts Pasteur (RIIP), Yaounde, Cameroon
- Public Health Emergency Operations Coordination Center, Yaounde, Cameroon
| | - Serge Alain Sadeuh-Mbah
- Virology Unit, Centre Pasteur du Cameroun, membre du Réseau International des Instituts Pasteur (RIIP), Yaounde, Cameroon
| | - Paul Alain Tagnouokam-Ngoupo
- Virology Unit, Centre Pasteur du Cameroun, membre du Réseau International des Instituts Pasteur (RIIP), Yaounde, Cameroon
| | - Maurice Tchuente
- Fondation pour la recherche l’ingénierie et l’innovation,Yaounde, Cameroon
| | - Richard Njouom
- Virology Unit, Centre Pasteur du Cameroun, membre du Réseau International des Instituts Pasteur (RIIP), Yaounde, Cameroon
| | - Sara Eyangoh
- Public Health Emergency Operations Coordination Center, Yaounde, Cameroon
- Mycobacteriology Unit, Centre Pasteur du Cameroun, membre du Réseau International des Instituts Pasteur (RIIP), Yaounde, Cameroon
| | - Mathurin Cyrille Tejiokem
- Epidemiology and public Heath Unit, Centre Pasteur du Cameroun, membre du Réseau International des Instituts Pasteur (RIIP), Yaounde, Cameroon
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9
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Kengne-Nde C, Tejiokem MC, Orne-Gliemann J, Melingui B, Koki Ndombo P, Essounga NA, Bissek AC, Cauchemez S, Tchendjou PT. Couple oriented counselling improves male partner involvement in sexual and reproductive health of a couple: Evidence from the ANRS PRENAHTEST randomized trial. PLoS One 2021; 16:e0255330. [PMID: 34329355 PMCID: PMC8323939 DOI: 10.1371/journal.pone.0255330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 06/29/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Male partner involvement (MPI) has been recognized as a priority area to be strengthened in Prevention of Mother to Child Transmission (PMTCT) of HIV. We explored the impact of Couple Oriented Counselling (COC) in MPI in sexual and reproductive health and associated factors. METHOD From February 2009 to October 2011, pregnant women were enrolled at their first antenatal care visit (ANC-1) and followed up until 6 months after delivery in the Mother and Child Center of the Chantal Biya Foundation within the randomized prenahtest multicentric trial. The MPI index was defined using sexual and reproductive health behaviour variables by using multiple correspondence analysis followed by mixed classification. Men were considered as highly involved if they had shared their HIV test results with their partner, had discussed on HIV or condom used, had contributed financially to ANC, had accompanied their wife to ANC or had practiced safe sex. Factors associated to MPI were investigated by the logistic model with GEE estimation approach. RESULTS A total of 484 pregnant women were enrolled. The median age of the women was 27 years (IQR: 23-31) and 55.23% had a gestational age greater than 16 weeks at ANC-1. Among them, HIV prevalence was 11.9% (95% CI: 9.0-15.4). The median duration of the women's relationship with their partner was 84 months (IQR: 48-120). MPI index at 6 months after delivery was significantly greater in the COC group than the classical counselling group (14.8% vs 8,82%; p = 0,043; Fig 1). The partners of the women who participated in the COC were more likely to be involved during follow up than others (aOR = 1.45; 95% CI = 1.00-2.10). Partners with no incoming activity (aOR = 2.90; 95% CI = 1.96-4.29), who did not used violence within the couple (aOR = 1.70; 95% CI = 1.07-2.68), and whose partner came early for ANC-1 (aOR = 1.37; 95% CI = 1.00-1.89) were more likely to be involved than others. CONCLUSION MPI remains low in stable couples and COC improves partner involvement. Our findings also support the need of strengthening outreach towards "stable" couples and addressing barriers. This could go a long way to improve PMTCT outcomes in Cameroon. TRIAL REGISTRATION PRENAHTEST, NCT01494961. Registered 15 December 2011-Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT01494961.
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Affiliation(s)
- Cyprien Kengne-Nde
- Centre Pasteur Cameroon, Epidemiology and Public Health Service, Yaounde, Cameroon
- Bordeaux School of Public Health, Bordeaux University, Bordeaux, France
- Mathematical Modeling of Infectious Diseases Unit, Pasteur Institute, Paris, France
- * E-mail: (CK-N); (PTT)
| | - Mathurin Cyrille Tejiokem
- Centre Pasteur Cameroon, Epidemiology and Public Health Service, Yaounde, Cameroon
- International Network of Pasteur Institutes, Paris, France
| | - Joanna Orne-Gliemann
- INSERM U897, Bordeaux School of Public Health, Bordeaux University, Bordeaux, France
| | - Bernard Melingui
- Centre Pasteur Cameroon, Hematology Laboratory, Yaounde, Cameroun
| | - Paul Koki Ndombo
- Centre of Mother and Child, Chantal Biya Foundation, Yaounde, Cameroon
| | - Ngo A. Essounga
- Ministry of Scientific Research and Innovation, Yaounde, Cameroon
| | - Anne Cécile Bissek
- Division of Operational Research, Ministry of Public Health, Yaounde, Cameroon
| | - Simon Cauchemez
- Mathematical Modeling of Infectious Diseases Unit, Pasteur Institute, Paris, France
- International Network of Pasteur Institutes, Paris, France
| | - Patrice T. Tchendjou
- Centre Pasteur Cameroon, Epidemiology and Public Health Service, Yaounde, Cameroon
- International Network of Pasteur Institutes, Paris, France
- * E-mail: (CK-N); (PTT)
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10
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Ndongo FA, Tejiokem MC, Penda CI, Ndiang ST, Ndongo JA, Guemkam G, Sofeu CL, Tagnouokam-Ngoupo PA, Kfutwah A, Msellati P, Faye A, Warszawski J. Long-term outcomes of early initiated antiretroviral therapy in sub-Saharan children: a Cameroonian cohort study (ANRS-12140 Pediacam study, 2008-2013, Cameroon). BMC Pediatr 2021; 21:189. [PMID: 33882903 PMCID: PMC8059165 DOI: 10.1186/s12887-021-02664-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 04/12/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In most studies, the virological response is assessed during the first two years of antiretroviral treatment initiated in HIV-infected infants. However, early initiation of antiretroviral therapy exposes infants to very long-lasting treatment. Moreover, maintaining viral suppression in children is difficult. We aimed to assess the virologic response and mortality in HIV-infected children after five years of early initiated antiretroviral treatment (ART) and identify factors associated with virologic success in Cameroon. METHODS In the ANRS-12140 Pediacam cohort study, 2008-2013, Cameroon, we included all the 149 children who were still alive after two years of early ART. Virologic response was assessed after 5 years of treatment. The probability of maintaining virologic success between two and five years of ART was estimated using Kaplan-Meier curve. The immune status and mortality were also studied at five years after ART initiation. Factors associated with a viral load < 400 copies/mL in children still alive at five years of ART were studied using logistic regressions. RESULTS The viral load after five years of early ART was suppressed in 66.8% (60.1-73.5) of the 144 children still alive and in care. Among the children with viral suppression after two years of ART, the probability of maintaining viral suppression after five years of ART was 64.0% (54.0-74.0). The only factor associated with viral suppression after five years of ART was achievement of confirmed virological success within the first two years of ART (OR = 2.7 (1.1-6.8); p = 0.033). CONCLUSIONS The probability of maintaining viral suppression between two and five years of early initiated ART which was quite low highlights the difficulty of parents to administer drugs daily to their children in sub-Saharan Africa. It also stressed the importance of initial viral suppression for achieving and maintaining virologic success in the long-term. Further studies should focus on identifying strategies that would enhance better retention in care and improved adherence to treatment within the first two years of ART early initiated in Sub-Saharan HIV-infected children.
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Affiliation(s)
- Francis Ateba Ndongo
- Université Paris-Sud, Centre Mère et Enfant de la Fondation Chantal Biya, Francis, POB 1936, Yaounde, Cameroon.
| | | | - Calixte Ida Penda
- MPH, PH-PU, Université Douala; Hôpital Laquintinie, Douala, Cameroon
| | | | | | - Georgette Guemkam
- Centre Mère et Enfant de la Fondation Chantal Biya, Yaounde, Cameroon
| | - Casimir Ledoux Sofeu
- Université Yaoundé I; Centre Pasteur du Cameroun, Service d'Epidémiologie et de Santé Publique, Yaounde, Cameroon
| | | | - Anfumbom Kfutwah
- Centre Pasteur du Cameroun, Service de Virologie, Yaounde, Cameroon
| | | | - Albert Faye
- Université Paris Diderot, Sorbonne Paris Cité; Assistance Publique des Hôpitaux de Paris, Pédiatrie Générale, Hôpital Robert Debré, INSERM UMR 1123, ECEVE, Paris, France
| | - Josiane Warszawski
- Université Paris-Sud, Assistance Publique des Hôpitaux de Paris, CESP INSERM U1018, team 4 "HIV and STD", Hôpital Bicêtre, 94276, Le Kremlin-Bicêtre, France
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11
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Tagnouokam-Ngoupo PA, Penda IC, Tchatchueng Mbougua JB, Tetang Ndiang S, Yuya Septoh F, Kenne A, Ngallè JE, Jakpou S, Ateba Ndongo F, Warszawski J, Faye A, Tejiokem MC. Virological failure and antiretroviral resistance among HIV-infected children after five years follow-up in the ANRS 12225-PEDIACAM cohort in Cameroon. PLoS One 2021; 16:e0248642. [PMID: 33735301 PMCID: PMC7971859 DOI: 10.1371/journal.pone.0248642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 03/02/2021] [Indexed: 11/18/2022] Open
Abstract
Objective In the present study, we aimed to evaluate the virological failure (VF) and drug resistance among treated HIV-infected children after five years follow-up in the ANRS-Pediacam cohort in Cameroon. Methods From November 2007 to October 2011, HIV-infected children born to HIV-infected mothers were included in the ANRS-PEDIACAM study and followed-up for more than 5 years. Plasma viral load (VL) was measured at each visit (every three months until month 24 and every 6 months thereafter). VF was the main outcome and HIV drug resistance test was performed using the ANRS procedures and algorithm. Results Data from 155 children were analyzed. The median age at combination antiretroviral therapy (cART) initiation was 4.2 months (interquartile range (IQR): 3.2–5.8), with 103 (66.5%) children taking LPV/r-containing regimen and 51 (32.9%) children taking NVP. After five years follow-up, 63 (40.6%; CI: 32.9–48.8) children experienced VF. The median duration between cART initiation and VF was 22.1 months (IQR: 11.9–37.1) with a median VL of 4.8 log10 (IQR: 4.0–5.5). Among the 57 children with HIV drug resistance results, 40 (70.2%) had at least one drug resistance mutation. The highest resistance rates (30.4–66.1%) were obtained with Lamivudine; Efavirenz; Nevirapine and Rilpivirine. Conclusions These results show high resistance to NNRTI and emphasize the need of VL and resistance tests for optimal follow-up of HIV-infected people especially children.
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Affiliation(s)
- Paul Alain Tagnouokam-Ngoupo
- Service de Virologie, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun
- * E-mail:
| | - Ida Calixte Penda
- Department of Clinical Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
- Hôpital Laquintinie de Douala, Douala, Cameroun
| | - Jules Brice Tchatchueng Mbougua
- Service d’Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun
| | | | - Francis Yuya Septoh
- Service d’Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun
| | - Angeladine Kenne
- Service d’Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun
| | | | - Sorel Jakpou
- Service d’Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun
| | - Francis Ateba Ndongo
- Unité Pédiatrique de Jour, Centre Mère et Enfant de la Fondation Chantal Biya, Yaoundé, Cameroun
| | - Josiane Warszawski
- Center for Research in Epidemiology and Population Health U1018, Clinical Epidemiology, INSERM, Le Kremlin-Bicetre, France
- Université Paris-Sud, Public Health, Le Kremlin-Bicêtre, France
- Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - Albert Faye
- Assistance Publique des Hôpitaux de Paris, Pédiatrie Générale, Hôpital Robert Debré, Paris, France
- Université Paris 7—Denis Diderot, Paris, Île-de-France, France
- INSERM UMR-S 1123 (ECEVE), Paris, France
| | - Mathurin Cyrille Tejiokem
- Service d’Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun
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12
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Monamele CG, Messanga Essengue LL, Ripa Njankouo M, Munshili Njifon HL, Tchatchueng J, Tejiokem MC, Njouom R. Evaluation of a mobile health approach to improve the Early Warning System of influenza surveillance in Cameroon. Influenza Other Respir Viruses 2020; 14:491-498. [PMID: 32410384 PMCID: PMC7431645 DOI: 10.1111/irv.12747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 04/12/2020] [Indexed: 11/28/2022] Open
Abstract
Background Rapid reporting of surveillance data is essential to better inform national prevention and control strategies. Objectives We compare the newly implemented smartphone‐based system to the former paper‐based and short message service (SMS) for collecting influenza epidemiological data in Cameroon. Methods Of the 13 sites which collect data from persons with influenza‐like illness (ILI), six sites send data through the EWS, while seven sites make use of the paper‐based system and SMS. We used four criteria for the comparison of the data collection tools: completeness, timeliness, conformity and cost. Results Regarding the different collection tools, data sent by the EWS were significantly more complete (97.6% vs 81.6% vs 44.8%), prompt (74.4% vs n/a vs 60.7%) and of better quality (93.7% vs 76.1% vs 84.0%) than data sent by the paper‐based system and SMS, respectively. The average cost of sending a datum by a sentinel site per week was higher for the forms (5.0 USD) than for the EWS (0.9 USD) and SMS (0.1 USD). The number of outpatient visits and subsequently all surveillance data decreased across the years 2017‐2019 together with the influenza positivity rate from 30.7% to 28.3%. Contrarily, the proportion of influenza‐associated ILI to outpatient load was highest in the year 2019 (0.37 per 100 persons vs 0.28 and 0.26 in the other 2 years). Conclusion All sentinel sites and even other disease surveillance systems are expected to use this tool in the near term future due to its satisfactory performance and cost.
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Affiliation(s)
| | | | | | | | - Jules Tchatchueng
- Laboratory of Epidemiology, Centre Pasteur of Cameroon, Yaoundé, Cameroon
| | | | - Richard Njouom
- Laboratory of Virology, Centre Pasteur of Cameroon, Yaoundé, Cameroon
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13
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Bouli FPNO, Awah-Ndukum J, Mingoas KJP, Tejiokem MC, Tchoumboue J. Dog demographics and husbandry practices related with rabies in Cameroon. Trop Anim Health Prod 2019; 52:979-987. [PMID: 31741308 DOI: 10.1007/s11250-019-02085-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 09/11/2019] [Indexed: 12/25/2022]
Abstract
Dog demographics are considered as one of the main factors in the control of rabies. Having reliable data on dog population and husbandry practices on how they are managed is a key point in the elaboration of any control program to fight against human deaths due to rabies which are mainly due to dogs. However, the lack of data regarding dog population is one of the main hindrances to elaborate effective fighting projects in developing countries, particularly in Africa. In order to contribute for reliable data on dog demographics and husbandry practices related to rabies, this study was carried out in the cities of Ngaoundéré, Garoua and Yaoundé, respectively located in Adamaoua, North and Centre regions of Cameroon from October 2013 to April 2014. A survey was conducted within 2500 households selected randomly to which 45 questions were addressed, while the vaccine status of dogs was checked in the houses by verifying the vaccination booklet and in public and private veterinary clinics. Various aspects of dogs such as dog population, husbandry practices, ownership and age distribution were assessed. Out of these households, 45% of them (1118) had exploitable data. From these, 46% of them owned at least 1 dog for a total of 707 dogs, with a dog per household ratio of 6.3:10 for a dog per human ratio of 1.16:10. The age distribution of these dogs showed that the mean age of male and female was around 2 years with a male per female ratio of 29:10. The estimation of roaming dogs gave a ratio of 2.3:10 per human. Concerning the reasons for having a dog, the main motivation was guarding (76%) and company (17%). Husbandry practices applied to these dogs were a complete restrained (52%), semi-restrained (29%) and a complete roaming (18%). In relation to rabies, only 34% of dog owners were able to prove the effective vaccination of their dogs and no reason was given to explain the non-vaccination by the majority (78%) of the owners. So this study provides for the first time a baseline on dog population for an objective fighting program but also shows that the husbandry practices applied by the owners can be a hindrance to a fighting program against rabies.
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Affiliation(s)
- Freddy Patrick Ngah Osoe Bouli
- Ministry of Livestock, Fisheries and Animal Industries, Dschang, Cameroon. .,Faculty of Agronomy and Environmental Sciences (FASA), University of Dschang, Dschang, Cameroon.
| | - Julius Awah-Ndukum
- Faculty of Agronomy and Environmental Sciences (FASA), University of Dschang, Dschang, Cameroon.,School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | | | | | - Joseph Tchoumboue
- Faculty of Agronomy and Environmental Sciences (FASA), University of Dschang, Dschang, Cameroon
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Penda CI, Tejiokem MC, Sofeu CL, Ndiang ST, Ateba Ndongo F, Kfutwah A, Guemkam G, Warszawski J, Faye A, Study Group TAP. Low rate of early vertical transmission of HIV supports the feasibility of effective implementation of the national PMTCT guidelines in routine practice of referral hospitals in Cameroon. Paediatr Int Child Health 2019; 39:208-215. [PMID: 31017537 DOI: 10.1080/20469047.2019.1585136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Background: Vertical (VT) transmission of HIV remains a public health concern in sub-Saharan Africa. Objective: To investigate the VT rate and factors associated with transmission in routine practice in three referral hospitals in Cameroon. Methods: All HIV-infected mothers who delivered in maternity wards or sought paediatric services during the first postnatal week from November 2007 to October 2010 were invited to participate in the ANRS-Pediacam cohort. Their infants were followed at 6, 10 and 14 weeks of life and HIV status was determined from the 6th week of life using real-time PCR. For those who were breastfed and negative at the first PCR, a second test was performed 6 weeks after breast-feeding was stopped. Logistic regression was performed to identify the independent risk factors of VT. Results: Overall, 2053 HIV-exposed infants were enrolled. Of these, 1827 were tested for HIV including 1777 before the age of 3 months, and 59 were HIV-infected, resulting in an overall early VT rate of 3.3% (CI 2.5-4.3). The VT rate was significantly associated with the type of maternal exposure to ART (0.5%, 2/439, p<0.001, CI 0.0-1.6) in mothers who commenced HAART before pregnancy, 1.9% (6/321, CI 0.7-4.0) in mothers who commenced HAART during pregnancy, 4.1% (34/837, CI 2.8-5.6) in those on short-course ART and 11.1% (17/153, CI 6.6-17.2) in mothers not receiving ART. On multivariate analysis, the type of exposure to ART remained significantly associated with being small for gestational age (aOR 5.0, CI 2.4-10.3, p < 0.001) and female gender (aOR 2.1, CI 1.2-3.8, p = 0.01). Conclusion: The successfully low rate of VT transmission of HIV in mothers who commenced HAART in early pregnancy strongly supports the need to improve access to diagnosis and early treatment of all women of childbearing age with HIV through the national PMTCT programme. Abbreviations: ANRS: French National Agency for Research on AIDS and Viral Hepatitis; ART: antiretroviral therapy; ARV: antiretroviral; AUDIPOG: Association des Utilisateurs de Dossiers Informatisés en Pédiatrie, Obstétrique et Gynécologie; CHM/MCC-CBF: The Central Hospital Maternity/Mother and Child Centre of the Chantal Biya Foundation; EHC: Essos Hospital Centre; EPI: Expanded Programme on Immunization; HAART: highly active antiretroviral therapy; HBV: hepatitis B virus; IQR: interquartile range; LH: Laquintinie Hospital; MTCT: mother-to-child transmission; NVP: nevirapine; Pediacam: Pediatrie Cameroun; PMTCT: prevention of mother-to-child transmission; SGAG: small for gestational age and gender; UNAIDS: Joint United Nations Program on HIV/AIDS; WHO: World Health Organization; ZDV: zidovudine; 3TC: lamivudine.
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Affiliation(s)
- Calixte Ida Penda
- a University of Douala, Clinical sciences department, Faculty of Medicine and Pharmaceutical Sci-ences , Douala , Littoral , Cameroon.,b Day Hospital , Laquintinie hospital , Douala , Cameroon
| | - Mathurin Cyrille Tejiokem
- c Service d'Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun , Membre du Réseau International des Instituts Pasteur , Yaoundé , Cameroun
| | - Casimir Ledoux Sofeu
- c Service d'Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun , Membre du Réseau International des Instituts Pasteur , Yaoundé , Cameroun.,d University of Bordeaux, INSERM Bordeaux Population health U1219 (Biostatistic) , Bordeaux , France
| | | | - Francis Ateba Ndongo
- f Central hospital Maternity/Mother -Child Centre , Chantal Biya Foundation , Yaoundé , Cameroon
| | - Anfumbom Kfutwah
- g Service de Virologie, Centre Pasteur du Cameroun , Membre du Réseau International des Instituts Pasteur , Yaoundé , Cameroun.,h WHO country office , Gabon , Libreville
| | - Georgette Guemkam
- f Central hospital Maternity/Mother -Child Centre , Chantal Biya Foundation , Yaoundé , Cameroon
| | - Josiane Warszawski
- i Equipe 4 (VIH et IST) - INSERM U1018 (CESP) , Kremlin Bicêtre , France.,j Assistance Publique des Hôpitaux de Paris, Service d'Epidémiologie et de Santé Publique , Hôpital Kremlin Bicêtre , France.,k Université de Paris Sud 11 , Paris , France
| | - Albert Faye
- l Assistance Publique des Hôpitaux de Paris, Pédiatrie Générale , Hôpital Robert Debré , Paris , France.,m Université Paris 7 Denis Diderot, Sorbonne Paris Cité , Paris , France.,n INSERM UMR 1123 (ECEVE)
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15
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Sofeu CL, Tejiokem MC, Penda CI, Protopopescu C, Ateba Ndongo F, Tetang Ndiang S, Guemkam G, Warszawski J, Faye A, Giorgi R. Early treated HIV-infected children remain at risk of growth retardation during the first five years of life: Results from the ANRS-PEDIACAM cohort in Cameroon. PLoS One 2019; 14:e0219960. [PMID: 31318938 PMCID: PMC6638950 DOI: 10.1371/journal.pone.0219960] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 07/06/2019] [Indexed: 01/17/2023] Open
Abstract
Background Long-term growth in HIV-infected infants treated early in resource-limited settings is poorly documented. Incidence of growth retardation, instantaneous risk of death related to malnutrition and growth parameters evolution during the first five years of life of uninfected and early treated HIV-infected children were compared and associated factors with growth retardation were identified. Methods Weight-for-age (WAZ), weight-for-length (WLZ), and length-for-age (LAZ) Z-scores were calculated. The ANRS-PEDIACAM cohort includes four groups of infants with three enrolled during the first week of life: HIV-infected (HI, n = 69), HIV-exposed uninfected (HEU, n = 205) and HIV-unexposed uninfected (HUU, n = 196). The last group included HIV-infected infants diagnosed before 7 months of age (HIL, n = 141). The multi-state Markov model was used to describe the incidence of growth retardation and identified associated factors. Results During the first 5 years, 27.5% of children experienced underweight (WAZ<-2), 60.4% stunting (LAZ<-2) and 41.1% wasting (WLZ<-2) at least once. The instantaneous risk of death observed from underweight state (35.3 [14.1–88.2], 84.0 [25.5–276.3], and 6.0 [1.5–24.1] per 1000 person-months for 0–6 months, 6–12 months, and 12–60 months respectively) was higher than from non-underweight state (9.6 [5.7–16.1], 20.1 [10.3–39.4] and 0.3 [0.1–0.9] per 1000 person-months). Compared to HEU, HIL and HI children were most at risk of wasting (adjusted HR (aHR) = 4.3 (95%CI: 1.9–9.8), P<0.001 and aHR = 3.3 (95%CI: 1.4–7.9), P = 0.01 respectively) and stunting for HIL (aHR = 8.4 (95%CI: 2.4–29.7). The risk of underweight was higher in HEU compared to HUU children (aHR = 5.0 (CI: 1.4–10.0), P = 0.001). Others associated factors to growth retardation were chronic pathologies, small size at birth, diarrhea and CD4< 25%. Conclusions HIV-infected children remained at high risk of wasting and stunting within the first 5 years period of follow-up. There is a need of identifying suitable nutritional support and best ways to integrate it with cART in pediatric HIV infection global care.
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Affiliation(s)
- Casimir Ledoux Sofeu
- Centre Pasteur du Cameroun, Service d’épidémiologie et de santé publique, Yaoundé, Cameroun
- Aix-Marseille Univiversité, INSERM, IRD, SESSTIM, Sciences Economiques & Sociales de la Santé & Traitement de l’Information Médicale, France
- Université de Bordeaux, ISPED, INSERM Bordeaux Population health U1219 (Biostatistic), France
- * E-mail:
| | | | - Calixte Ida Penda
- Université de Douala, Faculté de Médecine et de Sciences Pharmaceutiques, Cameroun
- Hôpital de Jour, Hôpital Laquintinie, Douala, Cameroun
| | - Camelia Protopopescu
- Aix-Marseille Univiversité, INSERM, IRD, SESSTIM, Sciences Economiques & Sociales de la Santé & Traitement de l’Information Médicale, France
| | | | | | - Georgette Guemkam
- Centre Mère et Enfant de la Fondation Chantal Biya, Yaoundé, Cameroun
| | - Josiane Warszawski
- INSERM U1018 (CESP)—Equipe 4 (VIH et IST), Le Kremlin Bicêtre, France
- Assistance Publique des Hôpitaux de Paris, Service d’Epidémiologie et de Santé Publique, Hôpital de Bicêtre, Le Kremlin Bicêtre, France
- Université de Paris Sud 11, Paris, France
| | - Albert Faye
- Assistance Publique des Hôpitaux de Paris, Pédiatrie Générale, Hôpital Robert Debré, Paris, France
- Université Paris 7 Denis Diderot, Paris Sorbonne Cité, Paris, France
- INSERM UMR 1123 (ECEVE), France
| | - Roch Giorgi
- Aix-Marseille Univiversité, INSERM, IRD, SESSTIM, Sciences Economiques & Sociales de la Santé & Traitement de l’Information Médicale, France
- APHM, Hôpital de la Timone, Service Biostatistique et Technologies de l’Information et de la Communication, Marseille, France
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Sofeu CL, Broban A, Njifou Njimah A, Blaise Momo J, Sadeuh-Mba SA, Druelles S, L’Azou M, Tejiokem MC. Improving systematic rabies surveillance in Cameroon: A pilot initiative and results for 2014-2016. PLoS Negl Trop Dis 2018; 12:e0006597. [PMID: 30188891 PMCID: PMC6126802 DOI: 10.1371/journal.pntd.0006597] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 06/08/2018] [Indexed: 12/25/2022] Open
Abstract
Canine rabies is endemic in Cameroon, but human rabies exposures and cases are likely underreported because of inadequate surveillance. In 2014, the surveillance network in the West region of Cameroon was reinforced by introducing a new anti-rabies center, a framework for data collection and evaluation, provisions for sample collecting and laboratory confirmation, and training for health professionals. The objective of this observational cohort study was to describe the incidence and characteristics of reported exposures and human and animal rabies cases following this reinforcement of the existing rabies surveillance system. The surveillance network consisted of local, regional, and national health and veterinary authorities in 11 of the 20 West region districts, and was completely integrated within the existing national rabies surveillance network. Animal exposures and suspected rabies exposures, the suspected rabid animals involved, and laboratory confirmation of human and animal rabies cases were recorded in a centralized information database. Between January 2014 and June 2016, the network recorded 1340 animal exposure cases for an overall incidence rate of 38.2 animal exposures per 100,000 people, four confirmed rabies-positive animals, and one confirmed human rabies case out of four clinically suspected cases. In contrast, 62 animal exposures and an overall incidence rate of 6.1 exposures per 100,000 people were reported for the West region districts not participating in the reinforced surveillance. Of the 925 animal exposure victims for whom a detailed case report form was completed, 703 were considered to be at risk of rabies and only 428 (61%) of these received any post-exposure prophylaxis in the form of rabies vaccine. Obstacles encountered within the network included low rates of animal sample submission and animal follow-up by veterinarians. Reinforced rabies surveillance in the West region of Cameroon has provided the most accurate estimate of the region's disease and exposure burdens to date, and indicates that animal exposures are substantially underreported. The reinforced network also signaled that greater access to post-exposure prophylaxis is needed. Integration of regions not covered by the surveillance network and efforts to improve engagement of veterinary services will be needed to reveal the true burden of rabies in Cameroon.
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Affiliation(s)
- Casimir Ledoux Sofeu
- Epidemiology and Public Health Service, Centre Pasteur du Cameroun, Member of the International Network of Pasteur Institutes, Yaoundé, Cameroon
| | - Anaïs Broban
- Global Epidemiology, Sanofi Pasteur, Istanbul, Turkey
| | - Amadou Njifou Njimah
- Mbouda Health District Hospital, West Regional Delegation of Public Health, Ministry of Public Health, Bafoussam, Cameroon
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - Jean Blaise Momo
- Virology Service, Centre Pasteur du Cameroun, Member of the International Network of Pasteur Institutes, Yaoundé, Cameroon
| | - Serge Alain Sadeuh-Mba
- Virology Service, Centre Pasteur du Cameroun, Member of the International Network of Pasteur Institutes, Yaoundé, Cameroon
| | | | - Maïna L’Azou
- Global Epidemiology, Sanofi Pasteur, Lyon, France
| | - Mathurin Cyrille Tejiokem
- Epidemiology and Public Health Service, Centre Pasteur du Cameroun, Member of the International Network of Pasteur Institutes, Yaoundé, Cameroon
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Njouom R, Siffert I, Texier G, Lachenal G, Tejiokem MC, Pépin J, Fontanet A. The burden of hepatitis C virus in Cameroon: Spatial epidemiology and historical perspective. J Viral Hepat 2018. [PMID: 29533500 DOI: 10.1111/jvh.12894] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Cameroon is thought to have one of the highest prevalences of hepatitis C virus (HCV) infection in the world (4.9% among adults). A marked cohort effect exists in several communities where ≈50% of the elderly are infected. Better assessment of HCV distribution is needed for planning treatment programmes. We tested for HCV antibodies 14 150 capillary blood samples collected during the 2011 Demographic and Health Survey, whose participants were representative of the Cameroonian population aged 15-49 (both genders) and 50-59 years (men only). Historical data on exposure to medical care were collected and factors associated with HCV assessed through logistic regression and geospatial analyses. To estimate prevalence in all persons aged ≥15 years, we used data from the survey for the 15-59 years fraction and modelled a cohort effect for older individuals. The nationwide HCV prevalence was 0.81% for the 15-49 years group, and 2.51% for all individuals aged ≥15 years. Only 0.2% of individuals aged 15-19 were seropositive. Among participants aged 15-44 years, HCV was associated with age, rural residence and, for males, with ritual circumcision. For those aged 45-59 years, HCV was associated with age and access to medical care in the late 1950s. Prevalence of HCV seropositivity in Cameroon is half of previous estimates. Nationwide surveys are essential to rationalize resources allocation. The high prevalence among older cohorts, a colonial legacy, has had little spillover into younger cohorts. HCV-free generations might be attainable in countries not plagued with intravenous drug abuse.
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Affiliation(s)
- R Njouom
- Centre Pasteur du Cameroun, Yaoundé, Cameroon
| | - I Siffert
- Emerging Diseases Epidemiology Unit, Institut Pasteur, Paris, France
| | - G Texier
- Centre Pasteur du Cameroun, Yaoundé, Cameroon.,UMR VITROME, Aix Marseille Univ, IRD, AP-HM, SSA, IHU-Méditerranée Infection, Marseille, France
| | | | | | - J Pépin
- Université de Sherbrooke, Sherbrooke, QC, Canada
| | - A Fontanet
- Emerging Diseases Epidemiology Unit, Institut Pasteur, Paris, France.,Unité PACRI, Conservatoire National des Arts et Métiers, Paris, France
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Kfutwah AKW, Ngoupo PAT, Sofeu CL, Ndongo FA, Guemkam G, Ndiang ST, Owona F, Penda IC, Tchendjou P, Rouzioux C, Warszawski J, Faye A, Tejiokem MC. Cytomegalovirus infection in HIV-infected versus non-infected infants and HIV disease progression in Cytomegalovirus infected versus non infected infants early treated with cART in the ANRS 12140-Pediacam study in Cameroon. BMC Infect Dis 2017; 17:224. [PMID: 28335737 PMCID: PMC5364639 DOI: 10.1186/s12879-017-2308-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 03/07/2017] [Indexed: 12/26/2022] Open
Abstract
Background The outcome of CMV/HIV co-infection in infants treated early with combined antiretroviral therapy (cART) in resource-limited settings has not been described. We aimed to estimate the prevalence and identify factors associated with early CMV infection in HIV-infected and non-infected infants included in a study in Cameroon, and to compare HIV disease progression and survival after 1 year of early cART, following infants’ CMV status. Methods HIV-infected infants followed from birth or from HIV diagnosis before 7 months old and HIV-uninfected infants born to HIV-infected or uninfected mothers were tested for CMV at a median age of 4.0 months [Interquartile range (IQR): 3.4–4.9]. Multivariable logistic regression was performed to identify factors associated with CMV infection. Early cART was offered to HIV-infected infants: mortality, immunological and virological outcomes were assessed. Results Three hundred and sixty-nine infants were tested. The proportion of infants infected with CMV at baseline was significantly higher in HIV-infected than in HIV-uninfected groups (58.9% (86/146) vs 30.0% (67/223), p < 0.001). At baseline, median CMV viral load was higher in HIV-infected (3.7 log copies/ml [IQR; 3.1–4.3]) than in HIV-uninfected infants (2.8 log copies [IQR; 2.1–3.4], p < 0.001). cART was initiated in 90% of HIV-infected infants (132/146) at a median age of 4.0 months (IQR; 3.2–5.9); in this sub-group CMV infection was independently associated with being followed from the time of HIV diagnosis rather than from birth (aOR = 3.1, 95%CI [1.2–8.0]), born to a non-single mother (aOR = 3.4[1.4–8.1]), and breastfeeding (aOR = 7.3 [2.7–19.4]). HIV-infected infants were retested after a median of 7.1 months [4.8–9.5]: CMV was undetectable in 37 of the 61 (60.7%) initially CMV-infected cases and became detectable in 8 of the 38 (21.1%) initially CMV-negative cases. After 1 year of cART, the probability of death (0.185 vs 0.203; p = 0.75), the proportion of cases with HIV RNA viral load <400 copies/ml (75.5% vs 61.5%; p = 0.17) and the mean CD4 percentage increase (10.97% vs 6.88%; p = 0.15) did not differ between CMV+ and CMV- infants. Conclusions We observed a high prevalence of CMV infection among HIV-infected infants. Early initiation of cART may have limited the negative impact of CMV even in the absence of specific anti-CMV treatment.
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Affiliation(s)
- Anfumbom K W Kfutwah
- Virology Service, Centre Pasteur of Cameroon, Member of the International Network of Pasteur Institutes, P.O. Box 31076, Yaounde, Cameroon.
| | - Paul Alain T Ngoupo
- Virology Service, Centre Pasteur of Cameroon, Member of the International Network of Pasteur Institutes, P.O. Box 31076, Yaounde, Cameroon
| | - Casimir Ledoux Sofeu
- Epidemiology and Public Health Service, Centre Pasteur of Cameroon, Member of the International Network of Pasteur Institutes, Yaounde, Cameroon
| | - Francis Ateba Ndongo
- Pediatric Day Clinic, Mother and Child Center of the Chantal Biya Foundation, Yaounde, Cameroon
| | - Georgette Guemkam
- Pediatric Day Clinic, Mother and Child Center of the Chantal Biya Foundation, Yaounde, Cameroon
| | | | - Félicité Owona
- Epidemiology and Public Health Service, Centre Pasteur of Cameroon, Member of the International Network of Pasteur Institutes, Yaounde, Cameroon
| | - Ida Calixte Penda
- Day Clinic, Laquintinie Hospital, Douala, Cameroon.,Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - Patrice Tchendjou
- Epidemiology and Public Health Service, Centre Pasteur of Cameroon, Member of the International Network of Pasteur Institutes, Yaounde, Cameroon
| | - Christine Rouzioux
- Assistance Publique des Hôpitaux de Paris, Laboratoire de Virologie, Hôpital Necker, Paris, France.,Université Paris 5 René Descartes, URF de Médecine, Paris, France
| | - Josiane Warszawski
- Equipe 4 (VIH et IST)-INSERM U1018 (CESP), Le Kremlin Bicêtre, France.,Assistance Publique des Hôpitaux de Paris, Service d'Epidémiologie et de Santé Publique, Hôpital de Bicêtre, Le Kremlin Bicêtre, France.,Université de Paris Sud 11, Paris, France
| | - Albert Faye
- Assistance Publique des Hôpitaux de Paris, Pédiatrie Générale, Hôpital Robert Debré, Paris, France.,Université Paris 7 Denis Diderot, Paris Sorbonne Cité, Paris, France.,INSERM UMR 1123, ECEVE, Paris, France
| | - Mathurin Cyrille Tejiokem
- Epidemiology and Public Health Service, Centre Pasteur of Cameroon, Member of the International Network of Pasteur Institutes, Yaounde, Cameroon. .,Equipe 4 (VIH et IST)-INSERM U1018 (CESP), Le Kremlin Bicêtre, France. .,, P.O. Box 1274, Yaounde, Cameroon.
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19
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Ndongo FA, Tejiokem MC, Texier G, Penda C, Ndiang S, Ndongo JA, Guemkam G, Sofeu CL, Afumbom K, Faye A, Msellati P, Warszawski J. VIROLOGICAL RESPONSE TO EARLY COMBINED ANTIRETROVIRAL THERAPY IN HIV-INFECTED INFANTS: EVALUATION AFTER TWO YEARS OF TREATMENT IN THE PEDIACAM STUDY. BMJ Glob Health 2017. [DOI: 10.1136/bmjgh-2016-000260.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Bigna JJR, Noubiap JJN, Asangbeh SL, Um LN, Sime PSD, Temfack E, Tejiokem MC. Abstracts reporting of HIV/AIDS randomized controlled trials in general medicine and infectious diseases journals: completeness to date and improvement in the quality since CONSORT extension for abstracts. BMC Med Res Methodol 2016; 16:138. [PMID: 27737631 PMCID: PMC5064790 DOI: 10.1186/s12874-016-0243-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 10/08/2016] [Indexed: 11/29/2022] Open
Abstract
Background Sufficiently detailed abstracts of randomized controlled trials (RCTs) are important, because readers often base their assessment of a trial solely on information in the abstract. We aimed at comparing reporting quality of RCTs in HIV/AIDS medicine before and after the publication of the 2008 CONSORT extension for abstracts and to investigate factors associated with better reporting quality. Methods We searched PubMed/Medline for HIV/AIDS RCTs published between 2006–07 (Pre-CONSORT) and 2014–15 (Post-CONSORT) in 40 leading general medicine and infectious diseases journals. Two investigators extracted data and scored abstracts. The primary outcome was the adjusted mean number of items reported among the 17 required. Proportions of abstracts reporting each of 17 items were considered as secondary outcome. The adjustment was done for journal field, CONSORT endorsement, abstract format, type of intervention, journal impact factor and authorship. This study received no funding. Results The adjusted mean number of reported items was 7.2 (95 % CI 6.6–7.7) in pre-CONSORT (n = 159) and 7.8 (95 % confidence interval [CI] 7.3–8.4) in post-CONSORT (n = 153) (mean difference 0.7; 95 % CI 0.1–1.2). Journal high impact factor (adjusted incidence rate ratio 2.16; 95 % CI 1.83–2.54), abstract with 13 authors or more (1.39; 95 % CI 1.07–1.79) and non-pharmacological intervention (1.19; 95 % CI 1.03–1.37) were independent factors for better reporting quality. There were significant improvements in reporting on participants, randomization, outcome results, registration and funding; regression for author contact; and no change for other items: title, design, interventions, objective, primary outcome, blinding, number randomized, recruitment, number analyzed, harms and conclusions. Conclusions After the publication of the CONSORT extension for abstracts, the reporting quality of HIV/AIDS RCT abstracts in general medicine and infectious diseases journals has suboptimally improved. Thus, stricter adherence to the CONSORT for abstract are needed to improve the reporting quality of HIV/AIDS RCT abstracts. Electronic supplementary material The online version of this article (doi:10.1186/s12874-016-0243-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jean Joel R Bigna
- Department of Epidemiology and Public Health, Centre Pasteur of Cameroon, Member of the International Network of the Pasteur Institute, Yaoundé, Cameroon.
| | - Jean Jacques N Noubiap
- Department of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa.,Medical Diagnostic Center, Yaoundé, Cameroon
| | - Serra Lem Asangbeh
- Department of Epidemiology and Public Health, Centre Pasteur of Cameroon, Member of the International Network of the Pasteur Institute, Yaoundé, Cameroon
| | - Lewis N Um
- Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon
| | - Paule Sandra D Sime
- Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon
| | - Elvis Temfack
- Internal Medicine Unit, Douala General Hospital, Douala, Cameroon.,Molecular Mycology Unit, Institut Pasteur of Paris, Paris, France
| | - Mathurin Cyrille Tejiokem
- Department of Epidemiology and Public Health, Centre Pasteur of Cameroon, Member of the International Network of the Pasteur Institute, Yaoundé, Cameroon
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Ateba Ndongo F, Warszawski J, Texier G, Penda I, Tetang Ndiang S, Ndongo JA, Guemkam G, Sofeu CL, Kfutwah A, Faye A, Msellati P, Tejiokem MC. Could caregiver reporting adherence help detect virological failure in Cameroonian early treated HIV-infected infants? BMC Pediatr 2015; 15:132. [PMID: 26391474 PMCID: PMC4578260 DOI: 10.1186/s12887-015-0451-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 09/14/2015] [Indexed: 11/24/2022] Open
Abstract
Background Viral load is still the marker of choice for monitoring adherence to combined antiretroviral therapy (cART) and confirming the success of HIV treatment. Unfortunately it is difficult to access in many resource-poor settings. We aimed to measure the performance of caregiver reporting adherence for detecting virological failure in routine practice during the first 2 years after cART initiation in infants. Methods PEDIACAM is an ongoing prospective cohort study including HIV1-infected infants diagnosed before 7 months of age between November 2007 and October 2011 in Cameroon. Adherence was assessed using a questionnaire administered every 3 months from cART initiation; the HIV-RNA viral load was determined at the same visits. Virological failure was defined as having a viral load ≥ 1000 cp/mL at 3 and 12 months after cART initiation or having a viral load ≥ 400 cp/mL at 24 months after cART initiation. The performance of each current missed and cumulative missed dose defined according to adherence as reported by caregiver was assessed using the viral load as the gold standard. Results cART was initiated at a median age of 4 months (IQR: 3–6) in the 167 infants included. The cumulative missed dose showed the best overall performance for detecting virological failure after 12 months of cART (AUC test, p = 0.005, LR + =4.4 and LR− = 0.4). Whatever the adherence reporting criterion, the negative predictive value was high (NPV ≥ 75 %) 12 and 24 months after cART initiation, whereas the positive predictive value was low (PPV ≤ 50 %). Conclusions The adherence questionnaire administered by the health care provider to the infants’ caregivers is not reliable for detecting virological failure in routine practice: its positive predictive value is low. However, the cumulative missed dose measurement may be a reliable predictor of virological success, particularly after 12 months of cART, given its high negative predictive value.
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Affiliation(s)
- Francis Ateba Ndongo
- Université Paris-Sud; Centre Mère et Enfant de la Fondation Chantal Biya, POB 1936, Yaounde, Cameroon.
| | - Josiane Warszawski
- Université Paris-Sud; Assistance Publique des Hôpitaux de Paris, CESP INSERM U1018, team 4 "HIV and STD"; Hôpital Bicêtre, 94276, Le Kremlin-Bicêtre, France.
| | - Gaetan Texier
- SESSTIM (UMR 912) Aix-Marseille Université, Marseille, France.
| | - Ida Penda
- Université Douala; Hôpital Laquintinie, POB 4035, Douala, Cameroon.
| | | | - Jean-Audrey Ndongo
- Centre Mère et Enfant de la Fondation Chantal Biya, POB 1936, Yaounde, Cameroon.
| | - Georgette Guemkam
- Centre Mère et Enfant de la Fondation Chantal Biya, POB 1936, Yaounde, Cameroon.
| | - Casimir Ledoux Sofeu
- Université Yaoundé I; Centre Pasteur du Cameroun, Service d'Epidémiologie et de Santé Publique, POB 1274, Yaounde, Cameroon.
| | - Anfumbom Kfutwah
- Centre Pasteur du Cameroun, Service de Virologie, POB 1274, Yaounde, Cameroon.
| | - Albert Faye
- Université Paris Diderot, Sorbonne Paris Cité; Assistance Publique des Hôpitaux de Paris, Pédiatrie Générale, Hôpital Robert Debré, Paris, France.
| | - Philippe Msellati
- UMI 233, IRD, Université Montpellier, POB 64501, 34394, Montpellier, France.
| | - Mathurin Cyrille Tejiokem
- Centre Pasteur du Cameroun, Service d'Epidémiologie et de Santé Publique, POB 1274, Yaounde, Cameroon.
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22
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Agbor AA, Bigna JJR, Plottel CS, Billong SC, Tejiokem MC, Ekali GL, Noubiap JJN, Toby R, Abessolo H, Koulla-Shiro S. Characteristics of patients co-infected with HIV at the time of inpatient tuberculosis treatment initiation in Yaoundé, Cameroon: a tertiary care hospital-based cross-sectional study. ACTA ACUST UNITED AC 2015; 73:24. [PMID: 25941570 PMCID: PMC4418067 DOI: 10.1186/s13690-015-0075-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 03/07/2015] [Indexed: 12/26/2022]
Abstract
Background Knowledge of the characteristics of patients co-infected with tuberculosis (TB) and human immunodeficiency virus (HIV) when TB treatment is initiated would allow clinicians to improve care and help policy-makers develop relevant and realistic guidelines. The aim of this study was to describe socio-demographic, clinical, and laboratory characteristics of TB/HIV co-infected patients starting inpatient TB treatment in Yaoundé, Cameroon. Methods We conducted a retrospective cross-sectional study, collecting data from medical records of HIV-infected patients with TB, aged 15 years old or more, hospitalized in the Infectious Diseases Unit of the Yaoundé Central Hospital, Cameroon from January 1, 2006 to June 30, 2013. Results The mean age of 337 patients meeting study inclusion criteria was 39.3 years. More than half were female (53.4%). Most (89.3%) resided in urban areas, 44.2% had a secondary education, and 46.0% were married. The majority was receiving co-trimoxazole prophylaxis (79.5%), and two thirds were taking antiretroviral therapy (67.4%). The mean duration of known HIV infection before TB treatment was 8.4 months. Most (88.1%) had newly diagnosed TB, rather than relapsed disease. Smear-positive pulmonary TB was documented in a third, (35.3%). Laboratory data revealed a median white blood cell count of 5,100 cells/mm3 (IQR 3,300-7,990 cells/mm3), a median hemoglobin level of 8 g/dl (IQR 7–10 g/dl), and a median CD4 cell count of 102 cells/mm3 (IQR 33–178 cells/mm3). Sex differences in our study included older age in the men (p < 0.001), more of whom were married (p < 0.001) and had achieved a higher level of education (p = 0.042). Men had fewer diagnoses of smear-positive pulmonary TB (p = 0.020). They weighed more than the women (p = 0.001) and had higher hemoglobin levels (p = 0.003). Conclusions Suboptimal adherence to WHO treatment recommendations in our Cameroonian study reinforces the importance of prescribing co-trimoxazole in HIV infection and ART for all TB/HIV co-infected persons. We urge that Ministries of Health continue implementing and disseminating guidelines for management of TB/HIV co-infected patients, and we call for measures ensuring that healthcare facilities’ stocks of ART and co-trimoxazole are sufficient to meet the need for both.
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Affiliation(s)
- Ako A Agbor
- Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon
| | | | - Claudia S Plottel
- Department of Medicine, New York University Langone Medical Center, New York, USA ; Department of Medicine, New York University School of Medicine, New York, USA
| | - Serges Clotaire Billong
- Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon ; National AIDS Control Committee, Ministry of Public Health, Yaoundé, Cameroon
| | - Mathurin Cyrille Tejiokem
- Department of Epidemiology and Public Health, Centre Pasteur du Cameroun, Member of International Network of the Pasteur Institutes, Garoua, Cameroon
| | - Gabriel L Ekali
- National AIDS Control Committee, Ministry of Public Health, Yaoundé, Cameroon
| | - Jean Jacques N Noubiap
- Internal Medicine Unit, Edéa Regional Hospital, Edéa, Cameroon ; Medical Diagnostic Center, Yaounde, Cameroon
| | - Roselyne Toby
- Infectious Diseases Unit, Yaoundé Central Hospital, Yaoundé, Cameroon
| | - Hermine Abessolo
- Infectious Diseases Unit, Yaoundé Central Hospital, Yaoundé, Cameroon
| | - Sinata Koulla-Shiro
- Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon ; Infectious Diseases Unit, Yaoundé Central Hospital, Yaoundé, Cameroon
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Sidze LK, Faye A, Tetang SN, Penda I, Guemkam G, Ateba FN, Ndongo JA, Nguefack F, Texier G, Tchendjou P, Kfutwah A, Warszawski J, Tejiokem MC. Different factors associated with loss to follow-up of infants born to HIV-infected or uninfected mothers: observations from the ANRS 12140-PEDIACAM study in Cameroon. BMC Public Health 2015; 15:228. [PMID: 25886161 PMCID: PMC4358721 DOI: 10.1186/s12889-015-1555-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Accepted: 02/16/2015] [Indexed: 11/23/2022] Open
Abstract
Background Loss to follow-up (LTFU) is a cause of potential bias in clinical studies. Differing LTFU between study groups may affect internal validity and generalizability of the results. Understanding reasons for LTFU could help improve follow-up in clinical studies and thereby contribute to goals for prevention, treatment, or research being achieved. We explored factors associated with LTFU of mother-child pairs after inclusion in the ANRS 12140-Pediacam study. Methods From November 2007 to October 2010, 4104 infants including 2053 born to HIV-infected mothers and 2051 born to HIV-uninfected mothers matched individually on gender and study site were enrolled during the first week of life in three referral hospitals in Cameroon and scheduled for visits at 6, 10 and 14 weeks of age. Visits were designated 1, 2 and 3, in chronological order, irrespective of the child’s age at the time of the visit. Mother-child pairs were considered lost to follow-up if they never returned for a clinical visit within the first six months after inclusion. Uni- and multivariable logistic regression were adjusted on matching variables to identify factors associated with LTFU according to maternal HIV status. Results LTFU among HIV-unexposed infants was four times higher than among HIV-exposed infants (36.7% vs 9.8%, p < 0.001). Emergency caesarean section (adjusted Odds Ratio (aOR) = 2.46 95% Confidence Interval (CI) [1.47-4.13]), young maternal age (aOR = 2.29, 95% CI [1.18-4.46]), and absence of antiretroviral treatment for prophylaxis (aOR = 3.45, 95% CI [2.30-5.19]) were independently associated with LTFU among HIV-exposed infants. Factors associated with LTFU among HIV-unexposed infants included young maternal age (aOR = 1.96, 95% CI [1.36-2.81]), low maternal education level (aOR = 2.77, 95% CI [1.95-3.95]) and housewife/unemployed mothers (aOR = 1.56, 95% CI [1.16-2.11]). Conclusion Failure to return for at least one scheduled clinical visit is a problem especially among HIV-unexposed infants included in studies involving HIV-exposed infants. Factors associated with this type of LTFU included maternal characteristics, socio-economic status, quality of antenatal care and obstetrical context of delivery. Enhanced counselling in antenatal and intrapartum services is required for mothers at high risk of failure to return for follow-up visits. Electronic supplementary material The online version of this article (doi:10.1186/s12889-015-1555-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Larissa Kamgue Sidze
- Service d'Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun. .,ISPED, Université Victor Segalen, Bordeaux II, France.
| | - Albert Faye
- Assistance Publique des Hôpitaux de Paris, Pédiatrie Générale, Hôpital Robert Debré, Paris, France. .,Université Paris 7 Denis Diderot, Paris Sorbonne Cité, Paris, France.
| | | | - Ida Penda
- Hôpital de Jour, Hôpital Laquintinie, Douala, Cameroun. .,Faculté de Médecine et des Sciences Pharmaceutiques, Université de Douala, Douala, Cameroun.
| | - Georgette Guemkam
- Centre Mère et Enfant de la Fondation Chantal Biya, Yaoundé, Cameroun.
| | | | | | - Félicité Nguefack
- Centre Mère et Enfant de la Fondation Chantal Biya, Yaoundé, Cameroun. .,Faculté de Médecine et des Sciences Biomédicales, Université de Yaoundé I, Yaoundé, Cameroun.
| | - Gaëtan Texier
- Service d'Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun. .,SESSTIM (UMR 912), Université Aix-Marseille, Marseille, France.
| | - Patrice Tchendjou
- Service d'Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun. .,ISPED, Université Victor Segalen, Bordeaux II, France.
| | - Anfumbom Kfutwah
- Service de Virologie, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun.
| | - Josiane Warszawski
- Equipe 4 (VIH et IST) - INSERM U1018 (CESP), Le Kremlin Bicêtre, Paris, France. .,Assistance Publique des Hôpitaux de Paris, Service d'Epidémiologie et de Santé Publique, Hôpital de Bicêtre, Le Kremlin Bicêtre, Paris, France. .,Université de Paris Sud 11, Paris, France.
| | - Mathurin Cyrille Tejiokem
- Service d'Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun. .,Equipe 4 (VIH et IST) - INSERM U1018 (CESP), Le Kremlin Bicêtre, Paris, France.
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Agbor AA, Bigna JJR, Billong SC, Tejiokem MC, Ekali GL, Plottel CS, Noubiap JJN, Abessolo H, Toby R, Koulla-Shiro S. Factors associated with death during tuberculosis treatment of patients co-infected with HIV at the Yaoundé Central Hospital, Cameroon: an 8-year hospital-based retrospective cohort study (2006-2013). PLoS One 2014; 9:e115211. [PMID: 25506830 PMCID: PMC4266669 DOI: 10.1371/journal.pone.0115211] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 11/19/2014] [Indexed: 11/21/2022] Open
Abstract
Background Contributors to fatal outcomes in TB/HIV co-infected patients actively undergoing TB treatment are poorly characterized. The aim was to assess factors associated with death in TB/HIV co-infected patients during the initial 6 months of TB treatment. Methods We conducted a hospital-based retrospective cohort study from January 2006 to December 2013 at the Yaoundé Central Hospital, Cameroon. We reviewed medical records to identify hospitalized co-infected TB/HIV patients aged 15 years and older. Death was defined as any death occurring during TB treatment, as per the World Health Organization's recommendations. We conducted logistic regression analysis to identify factors associated with a fatal outcome. Magnitudes of associations were expressed by adjusted odds ratio (aOR) with 95% confidence interval. Results The 337 patients enrolled had a mean age of 39.3 (standard deviation 10.3) years and 54.3% were female. TB treatment outcomes were distributed as follows: 205 (60.8%) treatment success, 99 (29.4%) deaths, 18 (5.3%) not evaluated, 14 (4.2%) lost to follow-up, and 1 (0.3%) failed. After exclusion of patients lost to follow-up and not evaluated, death in TB/HIV co-infected patients during TB treatment was associated with a TB diagnosis made before 2010 (aOR = 2.50 [1.31–4.78]; p = 0.006), the presence of other AIDS-defining diseases (aOR = 2.73 [1.27–5.86]; p = 0.010), non-AIDS comorbidities (aOR = 3.35 [1.37–8.21]; p = 0.008), not receiving cotrimoxazole prophylaxis (aOR = 3.61 [1.71–7.63]; p = 0.001), not receiving antiretroviral therapy (aOR = 2.45 [1.18–5.08]; p = 0.016), and CD4 cells count <50 cells/mm3 (aOR = 16.43 [1.05–258.04]; p = 0.047). Conclusions The TB treatment success rate among TB/HIV co-infected patients in our setting is low. Mortality was high among TB/HIV co-infected patients during TB treatment and is strongly associated with clinical and biological factors, highlighting the urgent need for specific interventions focused on enhancing patient outcomes.
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Affiliation(s)
- Ako A. Agbor
- Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, P.O. Box 1364, Yaoundé, Cameroon
| | - Jean Joel R. Bigna
- Goulfey Health District Unit, Ministry of Public Health, P.O. Box 62 Kousséri, Goulfey, Cameroon
- * E-mail:
| | - Serges Clotaire Billong
- Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, P.O. Box 1364, Yaoundé, Cameroon
- National AIDS control committee, Ministry of Public Health, P.O. Box 1459, Yaoundé, Cameroon
| | - Mathurin Cyrille Tejiokem
- Department of Epidemiology and Public Health, Centre Pasteur of Cameroun, P.O. Box 1264 Yaoundé, Cameroon, Member International Network of the Pasteur Institute
| | - Gabriel L. Ekali
- National AIDS control committee, Ministry of Public Health, P.O. Box 1459, Yaoundé, Cameroon
| | - Claudia S. Plottel
- Department of Medicine, New York University Langone Medical Center, New York, New York, United States of America
- Department of Medicine, New York University School of Medicine, New York, New York, United States of America
| | | | - Hortence Abessolo
- Infectious Diseases Unit, Yaoundé Central Hospital, P.O. Box 5555 Yaoundé, Cameroon
| | - Roselyne Toby
- Infectious Diseases Unit, Yaoundé Central Hospital, P.O. Box 5555 Yaoundé, Cameroon
| | - Sinata Koulla-Shiro
- Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, P.O. Box 1364, Yaoundé, Cameroon
- Infectious Diseases Unit, Yaoundé Central Hospital, P.O. Box 5555 Yaoundé, Cameroon
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Sofeu CL, Warszawski J, Ateba Ndongo F, Penda IC, Tetang Ndiang S, Guemkam G, Makwet N, Owona F, Kfutwah A, Tchendjou P, Texier G, Tchuente M, Faye A, Tejiokem MC. Low birth weight in perinatally HIV-exposed uninfected infants: observations in urban settings in Cameroon. PLoS One 2014; 9:e93554. [PMID: 24705410 PMCID: PMC3976419 DOI: 10.1371/journal.pone.0093554] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 03/05/2014] [Indexed: 11/19/2022] Open
Abstract
Background The consequences of maternal HIV infection for fetal growth are controversial. Here, we estimated the frequency of small for gestational age and gender (SGAG) among neonates born to HIV-infected or uninfected mothers and assessed the contribution, if any, of maternal HIV to the risk of SGAG. Methods The data used were obtained from the ANRS-Pediacam cohort in Cameroon. Pairs of newborns, one to a HIV-infected mother and the other to an uninfected mother, were identified during the first week of life, and matched on gender and recruitment site from 2007–2010. SGAG was defined in line with international recommendations as a birth weight Z-score adjusted for gestational age at delivery and gender more than two standard deviations below the mean (−2SD). Considering the matched design, logistic regression modeling was adjusted on site and gender to explore the effect of perinatal HIV exposure on SGAG. Results Among the 4104 mother-infant pairs originally enrolled, no data on birth weight and/or gestational age were available for 108; also, 259 were twins and were excluded. Of the remaining 3737 mother-infant pairs, the frequency of SGAG was 5.3% (95%CI: 4.6–6.0), and was significantly higher among HIV-infected infants (22.4% vs. 6.3%; p<.001) and lower among HIV-unexposed uninfected infants (3.5% vs. 6.3%; p<.001) than among HIV-exposed uninfected infants. Similarly, SGAG was significantly more frequent among HIV-infected infants (aOR: 4.1; 2.0–8.1) and less frequent among HIV-unexposed uninfected infants (aOR: 0.5; 0.4–0.8) than among HIV-exposed uninfected infants. Primiparity (aOR: 1.9; 1.3–2.7) and the presence of any disease during pregnancy (aOR: 1.4; 1.0–2.0) were identified as other contributors to SGAG. Conclusion Maternal HIV infection was independently associated with SGAG for HIV-exposed uninfected infants. This provides further evidence of the need for adapted monitoring of pregnancy in HIV-infected women, especially if they are symptomatic, to minimize additional risk factors for SGAG.
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Affiliation(s)
- Casimir Ledoux Sofeu
- Service d’Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun
- Université de Yaoundé I, IRD UMI 209 UMMISCO, Yaoundé, Cameroun
- Laboratoire International en Recherche Informatique et Mathématiques Appliquées, Equipe Idasco, Yaoundé, Cameroun
| | - Josiane Warszawski
- Equipe 4 (VIH et IST) - INSERM U1018 (CESP), Le Kremlin Bicêtre, France
- Assistance Publique des Hôpitaux de Paris, Service d’Epidémiologie et de Santé Publique, Hôpital de Bicêtre, Le Kremlin Bicêtre, France
- Université de Paris Sud 11, Paris, France
| | | | - Ida Calixte Penda
- Hôpital de Jour, Hôpital Laquintinie, Douala, Cameroun
- Faculté de Médecine et des Sciences Pharmaceutiques, Université de Douala, Douala, Cameroun
| | | | - Georgette Guemkam
- Centre Mère et Enfant de la Fondation Chantal Biya, Yaoundé, Cameroun
- Maternité Principale, Hôpital Central, Yaoundé, Cameroun
| | | | - Félicité Owona
- Service d’Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun
| | - Anfumbom Kfutwah
- Service de Virologie, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun
| | - Patrice Tchendjou
- Service d’Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun
| | - Gaëtan Texier
- Service d’Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun
- SESSTIM (UMR 912), Université Aix-Marseille, Marseille, France
| | - Maurice Tchuente
- Université de Yaoundé I, IRD UMI 209 UMMISCO, Yaoundé, Cameroun
- Laboratoire International en Recherche Informatique et Mathématiques Appliquées, Equipe Idasco, Yaoundé, Cameroun
| | - Albert Faye
- Assistance Publique des Hôpitaux de Paris, Pédiatrie Générale, Hôpital Robert Debré, Paris, France
- Université Paris 7 Denis Diderot, Paris Sorbonne Cité, Paris, France
| | - Mathurin Cyrille Tejiokem
- Service d’Epidémiologie et de Santé Publique, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, Yaoundé, Cameroun
- Equipe 4 (VIH et IST) - INSERM U1018 (CESP), Le Kremlin Bicêtre, France
- * E-mail:
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Kfutwah AK, Tejiokem MC, Njouom R. A low proportion of HBeAg among HBsAg-positive pregnant women with known HIV status could suggest low perinatal transmission of HBV in Cameroon. Virol J 2012; 9:62. [PMID: 22401702 PMCID: PMC3315739 DOI: 10.1186/1743-422x-9-62] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Accepted: 03/08/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Transmission of hepatitis B virus (HBV) from HBV-positive mothers to their infants is common and usually occurs when the mother is hepatitis B e antigen (HBeAg) positive and/or has a high HBV DNA load. In this study, we determined the prevalence of hepatitis B surface antigen (HBsAg) and HBeAg among pregnant women with known HIV status. FINDINGS A total of 650 pregnant women with a mean age of 26.2 years including 301 HIV-positives and 349 HIV-negatives were screened for HBsAg (Monolisa AgHBs Plus Biorad, France). Among the HBsAg-positives, HBeAg and anti-HBe were tested (Monolisa Ag HBe Plus Biorad, France). Overall, 51 (7.85%) were positive for HBsAg. The prevalence of HBsAg was not statistically different between HIV-positive and HIV-negative pregnant women [28/301 (9.3%) vs 23/349 (6.59%); p = 0.2]. None of the 45 HBsAg-positive samples was reactive for HBeAg. CONCLUSIONS Our study indicates a high prevalence of HBsAg with very low proportion of HBeAg in Cameroonian pregnant women. Since perinatal transmission of HBV is mostly effective when the mother is also HBeAg-positive, our data could suggest that perinatal transmissions play a minor role in HBV prevalence in Cameroon. In line with previous African studies, these findings further suggests that horizontal transmission could be the most common mechanism of HBV infections in Cameroon.
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Affiliation(s)
- Anfumbom Kw Kfutwah
- Virology Service, Centre Pasteur du Cameroun, Membre du Réseau International des Instituts Pasteur, BP 1274 Yaounde, Cameroon.
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Tchente Nguefack C, Mboudou E, Tejiokem MC, Doh A. [Complications of laparoscopic surgery in gynecology unit A of Yaoundé General Hospital, Cameroon]. J Gynecol Obstet Biol Reprod (Paris) 2009; 38:545-51. [PMID: 19833453 DOI: 10.1016/j.jgyn.2009.06.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2009] [Revised: 06/16/2009] [Accepted: 06/24/2009] [Indexed: 11/30/2022]
Abstract
The aim of the study was to describe the morbidity and mortality of gynaecological laparoscopy in a pilot center of Cameroon. It was a monocentric retrospective study over a period of seven years. All files of patients who had laparoscopic surgery in the service were reviewed. Files with incomplete information were excluded. Complications were defined as an event that had modified the usual cause of the procedure or of the postoperative period. They were classified as surgical complications (during insertion of Veress needle and trocarts, intraoperative and postoperative complications) also reorganised as major and minor complications and anaesthetic complications. The rate of laparoconconversion was noted. The data of 609 patients was gathered and examined. Their mean age was 31.57 (19-63years). The mean parity and gestity was 0.77 and 1.82, respectively. The common findings in their past history were sexually transmitted infection (39.9%), criminal abortions (35.03%) and previous surgery (39.1%). Infertility was the main indication of the surgery (76.3%) followed by postmyomectomy adhesiolysis (15%). The main operative findings were adhesions (78.16%). The mortality rate is 0.16%. The surgical morbidity rate is 2.46% with 0.99% of complications during insertion of Veress needle and trocarts and 1.48% during surgery. Among these complications, 1.8% were minor complications and 0.66%, major ones. Five patients had complications due to anaesthesia (0.82%). Postoperative complications (8.3%) were of low gravity and were mainly digestive, infectious and moderate vaginal bleeding. The rate of laparoconversion was 2.46%, mainly due to difficulties during surgery. This study shows that operative gynaecologic laparoscopy is associated with acceptable mortality and morbidity rate in our milieu.
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Affiliation(s)
- C Tchente Nguefack
- Service de gynécologie et obstétrique, faculté de médecine et des sciences pharmaceutiques, hôpital général de Douala, université de Douala, BP 4312, Douala, Cameroun.
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Tejiokem MC, Guemkam G, Same Ekobo C, Penda I, Nga A, Mbida P, Belinga ML, Tocko C, Ndongo FA, Ndongo JA, Mekoudjou M, Kfutwah A, Rousset D, Warszawski J, Faye A. Why do HIV negative mothers refuse to participate in a clinical research involving HIV positive mothers in Cameroon? Retrovirology 2009. [DOI: 10.1186/1742-4690-6-s1-o21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Eyangoh SI, Torrea G, Tejiokem MC, Kamdem Y, Piam FF, Noeske J, Van Deun A. HIV-related incremental yield of bleach sputum concentration and fluorescence technique for the microscopic detection of tuberculosis. Eur J Clin Microbiol Infect Dis 2008; 27:849-55. [PMID: 18463902 DOI: 10.1007/s10096-008-0516-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2007] [Accepted: 03/25/2008] [Indexed: 10/22/2022]
Abstract
Bleach sputum concentration and fluorescence microscopy (FM) are reportedly more sensitive than direct Ziehl-Neelsen (ZN) sputum smears for tuberculosis detection, and might be particularly valuable for human immunodeficiency virus (HIV)-positive patients excreting fewer bacilli. This study, implemented in Yaoundé, Cameroon, determined the yield from both direct and bleach-concentrated FM and ZN duplicate smears against culture on Löwenstein-Jensen medium, with HIV testing from the sputa. From 418 HIV-positive and 518 HIV-negative tuberculosis suspects, 185 (44.3%) and 243 (46.9%) cultures, respectively, grew Mycobacterium tuberculosis. Direct ZN was positive for, respectively, 87 (47.0%) and 202 (83.1%) of the culture-positive cases. Proportional incremental yield over direct ZN from ZN and FM bleach smears was 14.9% (P < 10(-3)) and 17.2% (P < 10(-4)) for HIV-positive versus 4.9% (P < 10(-2)) and 2.0% (non-significant) for HIV-negative cases. There was no gain from direct FM. Bleach FM showed 2% excess false positives. The bleach concentration, therefore, increases the yield of ZN and FM, particularly from HIV-positive patients, but with a higher risk for false positives with bleach FM. With excellent baseline direct ZN, the gain remains modest. Field studies under real-life conditions are needed to determine whether it is worth the risks and operational challenges in HIV high-prevalence populations. FM was not more sensitive than ZN in this study, probably because of sub-optimal objective power and background staining. Culture on solid media with sparing laurylsulfate decontamination was clearly superior for HIV-positives, but it remains to be seen if culture also leads to more cases started on treatment routinely.
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Affiliation(s)
- S I Eyangoh
- Laboratoire des Mycobactéries, Laboratoire de Référence pour le PNLT, Centre Pasteur du Cameroun, BP 1274, Yaoundé, Cameroon
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Njouom R, Tejiokem MC, Zanga MCE, Pouillot R, Ayouba A, Pasquier C, Nerrienet E. A cost-effective algorithm for the diagnosis of Hepatitis C virus infection and prediction of HCV viremia in Cameroon. J Virol Methods 2005; 133:223-6. [PMID: 16360220 DOI: 10.1016/j.jviromet.2005.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2005] [Revised: 10/26/2005] [Accepted: 11/01/2005] [Indexed: 01/27/2023]
Abstract
Conventional tests for antibody to Hepatitis C virus (HCV) and HCV RNA require considerable time before results are available, remain very expensive and are not adapted to many sub-Saharan African countries where HCV is endemic. The aim of this study was to evaluate the accuracy of an algorithm consisting of two HCV rapid tests to diagnose and predict HCV viremia in patients in Cameroon. Three hundred and twenty nine plasma samples were screened by two HCV rapid tests (ImmunoComb II HCV, PBS Orgenics and Hexagon HCV, Human). Previous evaluation of these samples for HCV antibodies (anti-HCV) by conventional third generation ELISA, considered as a reference test, indicated that 168 were anti-HCV negative and 161 positive. Among the 161 anti-HCV positive plasma, 114 (71%) were HCV RNA-positive by RT-PCR assay. The ImmunoComb II HCV test provided the more sensitive detection of anti-HCV (sensitivity: 99.4% with a 95% CI = 96-100%). Surprisingly, the second HCV rapid test, Hexagon HCV, showed a high capacity to identify non-viremic subjects amongst anti-HCV positive cases (93.6% [95% CI: 82-99%]). 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.
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Affiliation(s)
- Richard Njouom
- Laboratoire de virologie, Centre Pasteur du Cameroun, Yaounde, Cameroon.
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Njouom R, Pasquier C, Ayouba A, Tejiokem MC, Vessiere A, Mfoupouendoun J, Tene G, Eteki N, Lobe MM, Izopet J, Nerrienet E. Low risk of mother-to-child transmission of hepatitis C virus in Yaounde, Cameroon: the ANRS 1262 study. Am J Trop Med Hyg 2005; 73:460-6. [PMID: 16103623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023] Open
Abstract
To assess mother-to-child transmission (MTCT) of hepatitis C virus (HCV) in Cameroon, 5,008 pregnant women were screened for HCV antibodies. Eighty-nine (1.8%) were HCV-antibody (HCV-Ab) positive. Among these, 7 (7.9%) were HBsAg positive, 6 (6.7%) HIV-positive, and one (1.1%) was co-infected by both hepatitis B virus (HBV) and HIV. Sixty-eight (76%) out of 89 HCV-Ab positive pregnant women were HCV-RNA positive. The HCV genotype determination indicated the predominance of genotype 4 (45.3%), followed by the genotypes 1 (28.1%) and 2 (26.6%). The mean HCV-RNA levels of 41 women at the time of delivery was 4.8 (range 0.06-34.7) x 10(6) RNA copies/mL. Finally, 35 women delivered 36 live children. 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.
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Affiliation(s)
- Richard Njouom
- Centre Pasteur du Cameroun, Yaoundé, Cameroun; Laboratoire de Virologie, CHU Toulouse Purpan, Toulouse, France
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