Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 16 de 16
Filtrar
1.
J Mycol Med ; 31(1): 101086, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33259981

RESUMO

Due to limited access to more powerful diagnostic tools, there are few data on the burden of fungal infections in Côte d'Ivoire, despite a high HIV and TB burden and many cutaneous diseases. Here we estimate the burden of serious fungal infections in this sub-Saharan country with a health profiling description. National demographics were used and PubMed searches to retrieve all published articles on fungal infections in Côte d'Ivoire and other bordering countries in West Africa. When no data existed, risk populations were used to estimate frequencies of fungal infections, using previously described methodology by LIFE (www.LIFE-Worldwide.org). The population of Côte d'Ivoire is around 25 million; 37% are children (≤14 years), and 9% are>65 years. Tinea capitis in children is common, measured at 13.9% in 2013. Considering the prevalence of HIV infection (2.6% of the population, a total of ∼500,000) and a hospital incidence of 12.7% of cryptococcosis, it is estimated that 4590 patients per year develop cryptococcosis. For pneumocystosis, it is suggested that 2640 new cases occur each year with the prevalence of 11% of newly diagnosed HIV adults, and 33% of children with HIV/AIDS. Disseminated histoplasmosis is estimated a 1.4% of advanced HIV disease - 513 cases. An estimated 6568 news cases of chronic pulmonary aspergillosis (CPA) occur after pulmonary tuberculosis (a 5-year prevalence of 6568 cases [26/100,000]). Allergic bronchopulmonary aspergillosis (ABPA) and severe asthma with fungal sensitisation (SAFS) were estimated in 104/100,000 and 151/100,000 respectively, in 1,152,178 adult asthmatics. Vulvovaginal candidiasis (VVC) is common and recurrent VVC affects ∼6% of women in their fertile years - 421,936 women. An unknown number develop candidaemia and invasive aspergillosis. The annual incidence of fungal keratitis is estimated at 3350. No cases of sporotrichosis, mucormycosis and chromoblastomycosis are described, although some cases of mycetoma and Conidiobolus infection have been reported. This study indicates that around to 7.25% (1.8 million) of the population is affected by a serious fungal infection, predominently tinea capitis in children and rVVC in women. These data should be used to inform epidemiological studies, diagnostic needs and therapeutic strategies in Côte d'Ivoire.


Assuntos
Micoses/epidemiologia , Micoses/microbiologia , Infecções Oportunistas Relacionadas com a AIDS/epidemiologia , Infecções Oportunistas Relacionadas com a AIDS/microbiologia , Asma/epidemiologia , Efeitos Psicossociais da Doença , Côte d'Ivoire/epidemiologia , Fungos/classificação , Fungos/patogenicidade , Humanos , Incidência , Micoses/classificação , Prevalência , Fatores de Risco
2.
Bull Soc Pathol Exot ; 113(1): 35-38, 2020.
Artigo em Francês | MEDLINE | ID: mdl-32881446

RESUMO

The sustained worldwide use of the two available types of polio vaccines has significantly reduced the incidence of this disease. Our main objective is to report a 11-year monitoring period for acute flaccid paralysis secondary to poliovirus in Guinea. It was a retrospective descriptive study for all cases of acute flaccid paralysis (AFP) in which poliovirus was isolated by stool examination. During 11 years, 768 cases of AFP, including 8 cases of acute anterior poliomyelitis were collected at a frequency of 1%. The average age was 3.5 years with extremes of 1 year and 6 years, the most represented age group was 0-4 years with 7 cases. Six mothers were housewives doing gold panning as a revenue generating activity. The vaccine virus (serotype 2) was the most isolated with 6 cases.


L'utilisation soutenue à l'échelle mondiale des deux types de vaccins antipoliomyélitiques disponibles a considérablement diminué l'incidence de cette affection. Il s'agit ici d'une étude rétrospective de type descriptive, portant sur tous les cas de paralysie flasque aiguë (PFA) due aux poliovirus en Guinée chez lesquels le poliovirus a été isolé des selles, faisant l'état des lieux de 11 années de surveillance de la PFA. En 11 ans, 768 cas de PFA, dont huit cas de poliomyélite antérieure aiguë ont été enregistrés, soit une fréquence de 1 %. L'âge moyen était de 3,5 ans [1­6 ans]. La tranche d'âge de 0­4 ans était la plus représentée avec 7 cas. La majeure partie (6 cas) des mères des enfants étaient des agricultrices exerçant l'orpaillage. Les souches majoritairement isolées étaient dérivées du vaccin VDPV2.


Assuntos
Viroses do Sistema Nervoso Central/epidemiologia , Viroses do Sistema Nervoso Central/virologia , Mielite/epidemiologia , Mielite/virologia , Doenças Neuromusculares/epidemiologia , Doenças Neuromusculares/virologia , Poliomielite/complicações , Vigilância da População , Criança , Pré-Escolar , Feminino , Guiné/epidemiologia , Humanos , Lactente , Masculino , Estudos Retrospectivos , Fatores de Tempo
3.
Med Mal Infect ; 50(7): 562-566, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31874716

RESUMO

OBJECTIVE: To study Ebola virus disease (EVD) in children aged 15 years and below, and to identify risk factors associated with death. PATIENTS AND METHODS: Retrospective, multicenter, descriptive, and analytical study of files of children aged 15 years and below in Ebola treatment centers (ETC) of Donka from March 2014 to May 2015. We included all files of children aged 15 years and below hospitalized for EVD in the two ETCs. RESULTS: A total of 739 patients hospitalized in both ETCs, 146 children aged 15 years and below (20%) were registered during the study period. The mean age of children was 6.73±4.26 years. Most children were aged above five years (65.8%) and the mean time to consultation was 4.34±3.21 days. The main clinical signs were asthenia (78.8%), fever (75.3%), anorexia (53.4%), headache (45.9%), vomiting (41.8%), abdominal pain (29.5%), and diarrhea (28.8%). The case fatality was 48%, including 54.3% in Coyah and 45% in Conakry. Older age (aOR=0.83, 95% CI [0.76-0.95]), fever (aOR=3.28, 95% CI [1.22-8.87]), diarrhea (aOR=2.98, 95% CI [1.19-4.48]), and hemorrhage (aOR=3.13, 95% CI [1.00-10.38]) were independently associated with death due to EVD. CONCLUSION: EVD remains serious especially in children, with high case fatality. Risk factors independently associated with death were young age, diarrhea, hemorrhage, and fever. Particular attention to these risk factors and vaccination will contribute to improving the prognosis of EVD in children.


Assuntos
Doença pelo Vírus Ebola/mortalidade , Doença pelo Vírus Ebola/terapia , Adolescente , Criança , Pré-Escolar , Feminino , Guiné , Instalações de Saúde , Humanos , Masculino , Estudos Retrospectivos , Fatores de Risco
4.
Med Sante Trop ; 29(3): 251-252, 2019 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-31573516

RESUMO

We report the case of a 32-year-old man with septic arthritis and Neisseria gonorrhoeae tenosynovitis, diagnosed after joint fluid culture treated with ceftriaxone. It is one of the most frequent causes of purulent septic arthritis in young people in undeveloped countries. Early diagnosis is important to avoid complications.


Assuntos
Antibacterianos/uso terapêutico , Artrite Infecciosa/microbiologia , Gonorreia/tratamento farmacológico , Adulto , Artrite Infecciosa/diagnóstico , Ceftriaxona/uso terapêutico , Gonorreia/diagnóstico , Guiné , Humanos , Masculino
5.
Bull Soc Pathol Exot ; 112(5): 251-254, 2019.
Artigo em Francês | MEDLINE | ID: mdl-32880131

RESUMO

The objective of this study was to determine the factors associated with death in patients hospitalized for tetanus. This study collected prospectively over a twelve (12) month period, the epidemiological, clinical and evolutionary data, and proceeded to an analysis of the factors associated with the death of hospitalized patients. We collected 32 patients with tetanus, or 5% of the total number of hospitalized patients. The average age was 36 ± 14 years. The sex ratio was 15 (30/2). The iatrogenic entrance door was found in 5 (15%) patients. Respiratory complications were the most frequent, ie 9 cases (28%). The most commonly used treatment regimen (28 cases, 88%) was the combination of metronidazole, diazepam, and anti-tetanus serum with an average hospital stay of 23 days. A Dakar prognostic score greater than or equal to 3, the presence of complications and a hospital stay of less than or equal to 7 days were the main factors associated with the death. Tetanus remains common in Guinea with a high lethality rate. Improving immunization coverage is imperative.


L'objectif de cette étude est d'analyser les facteurs associés au décès chez les patients hospitalisés pour tétanos. Cette étude a recueilli de façon prospective, sur une période de 12 mois, les données épidémiologiques, cliniques et évolutives, puis procédé à une analyse des facteurs associés au décès des patients hospitalisés. Nous avons colligé 32 patients atteints de tétanos, soit 5 % du total des patients hospitalisés. L'âge moyen était de 36 ± 14 ans. Le sex-ratio était de 15 (30/2). La porte d'entrée iatrogène a été retrouvée chez 5 (15 %) patients. Les complications respiratoires étaient les plus fréquentes, soit 9 cas (28 %). Le schéma de traitement le plus utilisé (28 cas, 88 %) a été l'association de métronidazole, de diazépam et de sérum anti-tétanique avec une durée moyenne d'hospitalisation de 23 jours. Un score pronostique de Dakar supérieur ou égal à 3, la présence de complications et une durée d'hospitalisation inférieure ou égale à 7 jours ont été les principaux facteurs associés au décès. Le tétanos reste fréquent en Guinée avec un taux de létalité élevé. L'amélioration de la couverture vaccinale est impérative.

6.
Bull Soc Pathol Exot ; 111(5): 275-277, 2018.
Artigo em Francês | MEDLINE | ID: mdl-30950586

RESUMO

This retrospective, descriptive study carried out in the Infectious Diseases Department of CHNU, Fann from 1st January 2012 to 3st December 2016 aimed to describe the epidemiological aspects and the course of post-circumcision tetanus and to formulate public health recommendations. During our study period, 16 cases of post-circumcision tetanus were collected out of a total of 452 patients with tetanus, equivalent to a rate of 3.5%. The median age was 8 years (3-40). None of the patients had a vaccination card. In 63% of cases, circumcision was performed at home, by a practitioner whose qualification was not documented in 63% of cases. All signs of tetanus were found with trismus (100%), dysphagia (63%) and paroxysms (88%). These were mostly Mollaret stage II forms in 14 cases, and grade 3 Dakar score in 7 cases. The median duration of hospitalization was 10 days [6-15]. Mechanical or infectious complications were noted in two cases, with a lethality rate of 13%. Post-circumcision tetanus is a reality in Senegal. Good community awareness, continuous training of staff and implementation of vaccination catch-up strategies for children of circumcised age should eradicate this form of tetanus.


Cette étude rétrospective descriptive, réalisée à la Clinique des maladies infectieuses du CHNU de Fann du 1er janvier 2012 au 31 décembre 2016 avait pour but de décrire les aspects épidémiologiques et évolutifs du tétanos postcirconcision et de formuler des recommandations en termes de prévention. Durant la période d'étude, 16 cas de tétanos postcirconcision ont été colligés sur un total de 452 patients atteints de tétanos, soit une fréquence hospitalière de 3,5 %. L'âge médian était de huit ans (3­40). Aucun des patients ne disposait de carnet de vaccination. Dans 63 % des cas, la circoncision a été effectuée à domicile, par un praticien dont la qualification n'a pas été documentée dans 63 % des cas. Tous les signes du tétanos ont été retrouvés avec le trismus (100 %), la dysphagie (63 %) et les paroxysmes (88 %). Il s'agissait surtout de formes de moyenne gravité classées au stade II de Mollaret dans 14 cas, et au score 3 de Dakar dans sept cas. La durée médiane d'hospitalisation était de dix jours [6­15]. Des complications mécaniques ou infectieuses ont été notées dans deux cas, avec une létalité de 13 %. Le tétanos postcirconcision est une réalité au Sénégal. Une bonne sensibilisation de la communauté, la formation continue du personnel et la mise en place de stratégies de rattrapage vaccinal des enfants en âge d'être circoncis devraient permettre d'éradiquer cette forme de tétanos.


Assuntos
Circuncisão Masculina/efeitos adversos , Circuncisão Masculina/estatística & dados numéricos , Tétano/diagnóstico , Tétano/epidemiologia , Tétano/etiologia , Adolescente , Adulto , Criança , Pré-Escolar , Progressão da Doença , Departamentos Hospitalares/estatística & dados numéricos , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Prognóstico , Estudos Retrospectivos , Senegal/epidemiologia , Tétano/patologia , Medicina Tropical/organização & administração , Adulto Jovem
7.
Med. Afr. noire (En ligne) ; 65(02): 77-84, 2018.
Artigo em Francês | AIM (África) | ID: biblio-1266285

RESUMO

Introduction : La Cryptococcose Neuro-Méningée (CNM) survient souvent sur terrain d'immunodépression et surtout au cours de l'infection à VIH.Objectif : Déterminer la prévalence de la mortalité et les facteurs associés au décès. Patients et méthodes : Etude rétrospective descriptive et analytique, sur des patients hospitalisés de 2011 à 2014, des deux sexes, d'âge supérieur à 18 ans avec une CNM confirmée.Résultats : Trente-quatre cas colligés, dont 31 chez des patients VIH+ (91,1%). L'âge moyen était de 43,17 ans et la majorité avait un âge compris entre 40 et 49 ans. Le sex-ratio était de 1,26 en faveur des hommes. Ils présentaient des maladies chroniques sous-jacentes dans 11,7% des cas. Sur le plan clinique, céphalées (81,8%), fièvre au long cours (76,5%), vomissements (57,6%) et troubles de la conscience (44,1%) étaient notés. Des infections opportunistes étaient objectivées (97%) avec une prédominance de la candidose digestive. Sur le plan biologique, le taux moyen de LT CD4+ était de 117,42/mm3. L'examen direct à l'encre de Chine positif dans 11/23 cas. L'antigène cryptococcique positif dans LCR dans 16/24 cas et l'antigénémie positive pour 20/22 cas. Sur le plan évolutif, la létalité était de 57,6%. La durée de l'infection à HIV< 20 mois et les patients sans traitement ARV étaient les facteurs associés au décès.Conclusion : Dans nos régions elle est l'une des principales causes de méningo-encéphalite chez les sujets VIH+ immunodéprimés. Sa létalité est importante du fait de la non- disponibilité des antifongiques majeurs et du diagnostic tardif de l'infection à VIH


Assuntos
Criptococose , Meningite Criptocócica/epidemiologia , Meningite Criptocócica/mortalidade
8.
Infection ; 45(5): 687-690, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28214953

RESUMO

BACKGROUND: The prevalence of the Histoplasma capsulatum var. capsulatum (Hcc) histoplasmosis may be underestimated West Africa, both because the diagnosis is not mentioned in the early stages of the disease and due to limited biological resources available. CASE REPORT: We report a case of disseminated histoplasmosis due to Hcc in a Senegalese HIV patient. The diagnosis was suspected following the demonstration of small encapsulated yeasts within neutrophils on a thin blood smear. It was further confirmed using a specific real-time PCR applied on a DNA specimen extracted from the thin blood smear. CONCLUSION: To the best of our knowledge, this is the first case of Hcc infection diagnosed in Senegal. Blood smear may be a valuable screening tool in the case of bloodstream dissemination and can be used for further molecular approaches to confirm the diagnosis.


Assuntos
Histoplasma/isolamento & purificação , Histoplasmose/diagnóstico , Adulto , DNA Fúngico/análise , Infecções por HIV , Histoplasma/genética , Histoplasmose/sangue , Histoplasmose/microbiologia , Humanos , Masculino , Reação em Cadeia da Polimerase em Tempo Real , Senegal
9.
J Mycol Med ; 26(1): 56-60, 2016 Mar.
Artigo em Francês | MEDLINE | ID: mdl-26791746

RESUMO

BACKGROUND: Data relative to Pneumocystis pneumonia in sub-Saharan Africa are not well known. Weakness of the technical material and use of little sensitive biological tools of diagnosis are among the evoked reasons. The objective of this study is to update the data of the disease at the Fann Teaching Hospital in Dakar and to estimate biological methods used in diagnosis. MATERIALS AND METHODS: A descriptive longitudinal study was carried out from January 5th, 2009 to October 31st, 2011 in the parasitology and mycology laboratory of the Fann Teaching Hospital in Dakar. The bronchoalveolar lavages received in the laboratory were examined microscopically for Pneumocystis jirovecii by indirect fluorescent assay or after Giemsa or toluidine blue O staining. RESULTS: One hundred and eighty-three bronchoalveolar lavages withdrawn from 183 patients were received in the laboratory. Sixteen were positive for P. jirovecii at 9% frequency. Four among these patients were HIV positive. Indirect fluorescent assay allowed finding of P. jirovecii among 16 patients while Giemsa staining discovered P. jirovecii only in a single patient. No case was diagnosed by toluidine blue O staining. CONCLUSION: Pneumocystis pneumonia in Parasitology and Mycology Laboratory of Fann Teaching Hospital at Dakar was mainly diagnosed among HIV patients.


Assuntos
Líquido da Lavagem Broncoalveolar/parasitologia , Pneumocystis carinii/isolamento & purificação , Pneumonia por Pneumocystis/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Técnica Indireta de Fluorescência para Anticorpo , Infecções por HIV/complicações , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Pneumonia por Pneumocystis/complicações , Pneumonia por Pneumocystis/diagnóstico , Estudos Prospectivos , Senegal/epidemiologia , Coloração e Rotulagem , Adulto Jovem
10.
Med Sante Trop ; 26(1): 45-50, 2016.
Artigo em Francês | MEDLINE | ID: mdl-26644184

RESUMO

BACKGROUND: Since 2006, artemisinin-based combination therapies (ACT) have been used to treat uncomplicated Plasmodium falciparum malaria in Senegal, as recommended by WHO. Recently, decreased parasite clearance with artemisinin derivatives has been reported in Cambodia and Thailand. The effectiveness of artemisinin derivatives in Africa must be monitored. This study was conducted to evaluate the efficacy and the tolerability of three ACT widely used in Senegal. METHODS: From October 2010 to February 2011, a descriptive and analytical sequential study was conducted in adults and children to evaluate these three combinations: artemether-lumefantrine (AL), artesunate-amodiaquine (ASAQ), and dihydroartemisinin-piperaquine (DHAPQ). The study took place at the health posts of Deggo and Pikine and the health center of Guédiawaye, in the suburbs of Dakar. The primary endpoint was the PCR-corrected adequate clinical and parasitological response (ACPR) at day 28 (D28); the secondary endpoints included ACPR at D42, clearance times for parasites, fever, and gametocytes, and the incidence of adverse events. RESULTS: The study included 393 patients: 139 in the AL group, 130 in the ASAQ group, and 124 in the DHAPQ group. In the intent-to-treat population, PCR-corrected ACPR at day 28 was 92.8% in the AL, 89.2% in the ASAQ, and 91.1% in the DHAPQ (p = 0.58) groups, and in the per-protocol population, 98.4%, 98.3%, and 100% respectively (p = 0.39). At D42, ACPR was 99.2% in the AL, and 99.1% in each of the ASAQ and DHAPQ arms (p = 1). No early therapeutic failure (ETF) was observed. The combinations were well tolerated, with no serious adverse events reported during the follow-up period. CONCLUSION: These combinations are still effective and well-tolerated. Continued monitoring is nonetheless essential to detect early artemisinin resistance in Africa.


Assuntos
Amodiaquina/uso terapêutico , Antimaláricos/uso terapêutico , Artemisininas/uso terapêutico , Etanolaminas/uso terapêutico , Fluorenos/uso terapêutico , Malária Falciparum/tratamento farmacológico , Quinolinas/uso terapêutico , Adolescente , Adulto , Combinação Arteméter e Lumefantrina , Criança , Pré-Escolar , Combinação de Medicamentos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Senegal , Resultado do Tratamento , Adulto Jovem
11.
Bull Soc Pathol Exot ; 107(3): 159-64, 2014 Aug.
Artigo em Francês | MEDLINE | ID: mdl-24842755

RESUMO

BACKGROUND: Malarial infection in non immune pregnant women is a major risk factor for pregnancy failure. However in malaria endemic areas, intermittent preventive treatment (IPTp) have been adopted to prevent malaria in pregnancy women since 2003 in Senegal. The impact of IPT on the development of immunity is not very well documented. We conducted a prospective study at the Roi-Baudouin maternity hospital of Guediawaye in Senegal to assess IL10, IL12, TNFα and IFNγ cytokines production in pregnant women under IPTp. Cytokines were analyzed in 82 sera at inclusion and delivery. P. falciparum HRP2 antigen was detected in 17% of women included by rapid diagnostic test (RDT). At inclusion the mean of IL10 response was higher in P. falciparum negative women (8 UA) compare to RDT-positive women (7 UA) p=0.069 while in delivery the opposite was found p=0.014. Low production of inflammatory cytokines IL12, IFNγ and TNFα was noted in both groups. Between inclusion and delivery, a significant increase of IL-10 production was noted while a decrease of IFNγ and TNFα cytokine was noted. Thus, IL12 and IFNγ responses may synergistically associate as malaria immune response during pregnancy.


Assuntos
Antimaláricos/uso terapêutico , Citocinas/sangue , Malária Falciparum/prevenção & controle , Complicações Parasitárias na Gravidez/prevenção & controle , Adolescente , Adulto , Doenças Endêmicas , Feminino , Humanos , Estudos Longitudinais , Malária Falciparum/sangue , Malária Falciparum/epidemiologia , Plasmodium falciparum/imunologia , Gravidez , Complicações Parasitárias na Gravidez/sangue , Cuidado Pré-Natal , Senegal/epidemiologia , Adulto Jovem
12.
J Mycol Med ; 24(2): 124-8, 2014 Jun.
Artigo em Francês | MEDLINE | ID: mdl-24631372

RESUMO

OBJECTIVE: Onychomycosis are a mycose of nail due to fungi. According to published data, they stands for half of all nail abnormalities. This survey was carried out to determine the frequency and the fungi involved in onychomycosis in Dakar. MATERIAL AND METHODS: This study was carried out at the laboratory of parasitology and mycology at Le Dantec Hospital, in Senegal from January 2008 to December 2012 and includes 507 patients. RESULTS: Onychomycosis were mycologically proved in 58.78% (298/507) of patients. Patient's age varies between 02 years to 82 years with a mean of 34.24 years. Women were more infected than men (sex-ratio was 2.38). Onychomycosis due to dermatophyte represented 37.92% (113/298) of patients and were essentially located on toes (60.71%). Distal and lateral subungual onychomycosis was the most frequent clinical form. Trichophyton rubrum and Trichophyton interdigitale were isolated respectively in 53.6% and 26.1% on toes. Yeasts represented 59.06% (176/298) of onychomycosis and were essentially located on fingernails (80.11%). Candida albicans represented 90.86% of isolated yeasts. Molds were isolated in nine cases (3.02%) and predominated in toenails. CONCLUSION: Among 507 patients with onychopathy, this study identified 298 cases of onychomycosis. T. rubrum was the main dermatophytes and was isolated on toenails whereas on fingernails C. albicans was more often observed.


Assuntos
Dermatoses do Pé/microbiologia , Dermatoses da Mão/microbiologia , Onicomicose/microbiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Dermatoses do Pé/epidemiologia , Dermatoses da Mão/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Onicomicose/epidemiologia , Estudos Retrospectivos , Senegal/epidemiologia , Adulto Jovem
13.
Bull Soc Pathol Exot ; 106(4): 258-63, 2013 Oct.
Artigo em Francês | MEDLINE | ID: mdl-24136663

RESUMO

This is a prospective, descriptive and analytic study conducted from July 2011 to September 2011 at the Children National Hospital Albert Royer of Dakar and at the Vélingara Health District. It was focused on children under 15 without reference to HIV status. For each child, a sample of stool was examined by the Ziehl-Neelsen modified staining and by ELISA using the "Cryptosporidium Antigen Detection Microwell ELISA kit" designed to detect Cryptosporidium spp antigens. The aim of our study was to determine the prevalence of cryptosporidiosis in rural and hospital areas and to measure the performance of the ELISA kit that we used. Out of the 375 stool examinations performed with the Ziehl-Neelsen modified staining, 17 had revealed the presence of Cryptosporidium spp (4.53%). The prevalence in rural areas was 2% while the hospital prevalence was 7.4%, of which 1.8% (1/57) were from urban areas and 9.8% (12/122) from suburban areas. No positive case was observed in children over 10 years. By ELISA, 23 positives cases were reported corresponding to a prevalence of 6.13% (1.8% in children living in urban areas, 13.1% in children from suburban areas and 3%living in rural areas).The correlation of this assay with the Ziehl-Neelsen modified staining, considered as the reference method, found that this assay had a sensitivity of 58.82% and a high specificity reaching 96.37%. The positive predictive value (PPV) was 43.4% while the negative predictive value was 98%. Cryptosporidiosis is a significant cause of parasitic infection among children in Senegal. Antigen detection of Cryptosporidium spp by ELISA in stool can be a complementary tool in the diagnosis of cryptosporidiosis.


Assuntos
Criptosporidiose/diagnóstico , Criptosporidiose/epidemiologia , Adolescente , Criança , Pré-Escolar , Criptosporidiose/parasitologia , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Senegal/epidemiologia , Testes Sorológicos/métodos
14.
BMC Res Notes ; 5: 565, 2012 Oct 11.
Artigo em Inglês | MEDLINE | ID: mdl-23057857

RESUMO

BACKGROUND: Malaria and anaemia (Haemoglobin <11 g/dl) remain frequent in tropical regions and are closely associated. Although anaemia aetiologies are known to be multi-factorial, most studies in malaria endemic areas have been confined to analysis of possible associations between anaemia and individual factors such as malaria. A case control study involving children aged from 1 to 10 years was conducted to assess some assumed contributors to anaemia in the area of Bonconto Health post in Senegal. METHODS: Study participants were randomly selected from a list of children who participated in a survey in December 2010. Children aged from 1 to 10 years with haemoglobin level below 11 g/dl represented cases (anaemic children). Control participants were eligible if of same age group and their haemoglobin level was >= 11 g/dl. For each participant, a physical examination was done and anthropometric data collected prior to a biological assessment which included: malaria parasitaemia infection, intestinal worm carriage, G6PD deficiency, sickle cell disorders, and alpha-talassaemia. RESULTS: Three hundred and fifty two children < 10 years of age were enrolled (176 case and 176 controls). In a logistic regression analysis, anaemia was significantly associated with malaria parasitaemia (aOR=5.23, 95%CI[1.1-28.48]), sickle cell disorders (aOR=2.89, 95%CI[1,32-6.34]), alpha-thalassemia (aOR=1.82, 95%CI[1.2-3.35]), stunting (aOR=3.37, 95%CI[1.93-5.88], age ranged from 2 to 4 years (aOR=0.13, 95%CI[0.05-0.31]) and age > 5 years (aOR=0.03, 95%CI[0.01-0.08]). Stratified by age group, anaemia was significantly associated with stunting in children less than 5 years (aOR=3.1 95%CI[1.4 - 6.8]), with, sickle cell disorders (aOR=3.5 95%CI [1.4 - 9.0]), alpha-thalassemia (or=2.4 95%CI[1.1-5.3]) and stunting (aOR=3.6 95%CI [1.6-8.2]) for children above 5 years. No association was found between G6PD deficiency, intestinal worm carriage and children's gender. CONCLUSION: Malaria parasitaemia, stunting and haemoglobin genetic disorders represented the major causes of anaemia among study participants. Anaemia control in this area could be achieved by developing integrated interventions targeting both malaria and malnutrition.


Assuntos
Anemia/complicações , Eritrócitos/metabolismo , Malária/complicações , Desnutrição/complicações , Parasitemia/complicações , Anemia/sangue , Anemia Falciforme/sangue , Anemia Falciforme/complicações , Animais , Estudos de Casos e Controles , Criança , Pré-Escolar , Entamoeba/isolamento & purificação , Feminino , Giardia lamblia/isolamento & purificação , Glucosefosfato Desidrogenase/genética , Glucosefosfato Desidrogenase/metabolismo , Hemoglobinas/genética , Hemoglobinas/metabolismo , Humanos , Lactente , Malária/sangue , Masculino , Desnutrição/sangue , Parasitemia/sangue , Parasitemia/parasitologia , Polimorfismo Genético , Fatores de Risco , Schistosoma haematobium/isolamento & purificação , Schistosoma mansoni/isolamento & purificação , Senegal , Strongyloides stercoralis/isolamento & purificação , Talassemia alfa/sangue , Talassemia alfa/complicações
15.
J Mycol Med ; 22(4): 335-40, 2012 Dec.
Artigo em Francês | MEDLINE | ID: mdl-23518168

RESUMO

JUSTIFICATION: The frequency of candidiasis has increased dramatically in recent years. Candida albicans is the most common species. However, other species which are pathogenic and resistant to usual antifungal agents beginning to emerge. These include Candida dubliniensis and Candida africana, which share morphological similarities with Candida albicans. Thus, it is of interest to correctly identify the fungal isolates. OBJECTIVE: To seek these new species among Candida strains isolated in Dakar. MATERIAL AND METHODS: Oropharyngeal and vaginal swabs were performed at Fann Universitary Hospital in Dakar. The strains were identified by the germ tube test, the chlamydospore production test and an auxanogram. Then identification by PCR targeting the hyphal wall protein 1(hwp1) gene, was performed for the discrimination between Candida albicans, Candida dubliniensis and Candida africana. RESULTS: In total, 243 yeasts were isolated from samples including 231 in vaginal swab and 12 in oropharyngeal swab. Species identified by phenotypic methods are Candida albicans, which is the most frequent, Candida tropicalis, Candida glabrata, Candida dubliniensis, Candida kefyr and Candida lusitaniae. PCR performed on the 150 strains germ tube test positive identifies three Candida africana, 109 Candida albicans and no strain of Candida dubliniensis. CONCLUSION: This study isolates Candida africana for the first time in Senegal. Further studies on a larger sample will better know the actual proportion of these three species among the isolated yeasts.


Assuntos
Candida/isolamento & purificação , Candidíase/microbiologia , Candida/classificação , Candida/metabolismo , Candida albicans/isolamento & purificação , Candida albicans/metabolismo , Candidíase/epidemiologia , Candidíase Bucal/epidemiologia , Candidíase Bucal/microbiologia , Candidíase Vulvovaginal/epidemiologia , Candidíase Vulvovaginal/microbiologia , Metabolismo dos Carboidratos , DNA Fúngico/isolamento & purificação , Feminino , Proteínas Fúngicas/genética , Genes Fúngicos , Humanos , Masculino , Orofaringe/microbiologia , Estudos Prospectivos , Senegal/epidemiologia , Especificidade da Espécie , Vagina/microbiologia
16.
Bull Soc Pathol Exot ; 104(4): 277-83, 2011 Oct.
Artigo em Francês | MEDLINE | ID: mdl-21818679

RESUMO

The impact of intermittent presumptive treatment (IPT) on the immunity of pregnant women in Senegal is still not very well known. We conducted a prospective study at the Roi-Baudouin maternity of Guediawaye in Senegal to assess IgG antibodies production against MSP1, GLURP and DBL5 in pregnant women under IPT. Blood samples were collected from the participating women at inclusion and delivery. Samples were analyzed after centrifugation for the detection of IgG antibodies in sera by Elisa. Informed consent was given by each study participant prior to their inclusion. A total of 101 eligible women aged from 18 to 44 were included in this study. Multigravidae women represented 70.3% of the study population, whereas primigravidae accounted for 29.7%. The IgG level decreased slightly from inclusion to delivery for the women with regard to anti-MSP1 (83.1at inclusion versus 79.5 at delivery, p = 0.52) as well as anti-GLURP-R2 (84.1 at inclusion versus 75.9 at delivery, p = 0.16). After adjustment for number of pregnancies, there was a significant decrease in the production of anti-VAR2CSA between inclusion and delivery (p < 0.05). By reducing the incidence of malaria during pregnancy, IPT reduced the acquisition of placental parasites antibodies suppressors which could delay the development of protective immunity against malaria. The application of IPT in pregnant women would thus be more appropriate in hypoendemic areas where malaria exposure is lower.


Assuntos
Anticorpos Antivirais/sangue , Antígenos de Protozoários/imunologia , Antimaláricos/administração & dosagem , Malária Falciparum/prevenção & controle , Complicações Parasitárias na Gravidez/prevenção & controle , Pirimetamina/administração & dosagem , Sulfadoxina/administração & dosagem , Adolescente , Adulto , Combinação de Medicamentos , Feminino , Humanos , Imunoglobulina G/sangue , Malária Falciparum/epidemiologia , Malária Falciparum/imunologia , Plasmodium falciparum/imunologia , Gravidez , Complicações Parasitárias na Gravidez/imunologia , Estudos Prospectivos , Senegal/epidemiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...