RÉSUMÉ
Effective infectious disease surveillance in high-risk regions is critical for clinical care and pandemic preemption; however, few clinical diagnostics are available for the wide range of potential human pathogens. Here, we conduct unbiased metagenomic sequencing of 593 samples from febrile Nigerian patients collected in three settings: i) population-level surveillance of individuals presenting with symptoms consistent with Lassa Fever (LF); ii) real-time investigations of outbreaks with suspected infectious etiologies; and iii) undiagnosed clinically challenging cases. We identify 13 distinct viruses, including the second and third documented cases of human blood-associated dicistrovirus, and a highly divergent, unclassified dicistrovirus that we name human blood-associated dicistrovirus 2. We show that pegivirus C is a common co-infection in individuals with LF and is associated with lower Lassa viral loads and favorable outcomes. We help uncover the causes of three outbreaks as yellow fever virus, monkeypox virus, and a noninfectious cause, the latter ultimately determined to be pesticide poisoning. We demonstrate that a local, Nigerian-driven metagenomics response to complex public health scenarios generates accurate, real-time differential diagnoses, yielding insights that inform policy.
Sujet(s)
Fièvre de Lassa , Virus , Humains , Nigeria/épidémiologie , Métagénomique , Fièvre de Lassa/diagnostic , Fièvre de Lassa/épidémiologie , Virus de Lassa/génétique , Virus/génétiqueRÉSUMÉ
INTRODUCTION: The National Home Grown School Feeding Programme (NHGSFP) was re-launched in Nigeria in 2016, eleven years after it was first introduced in the country, with Enugu as one of the beneficiary States. The objectives of the programme are to improve the health of school children and aid in the realization of Universal Basic Education (UBE) goals. This study explored the opinions of heads of public primary schools on the implementation and policy benefits of NHGSFP in Enugu, southeast Nigeria. METHODS: This was a cross-sectional study conducted among 24 headmasters and headmistresses purposively selected from public primary schools in the Enugu metropolis. Qualitative data were collected through the use of a pretested Key Informant Interview (KII) guide, and analyzed using a thematic approach. RESULTS: All the participants were aware of the NHGSFP, which involved the provision of one mid-day meal per child per school day to the pupils, and all their schools were part of the programme. Most of the participants complained about the nutritional quality and quantity of the school meals which they felt were poor. None of the schools had a kitchen within the school premises, and all the participants admitted that deworming was not regularly carried out, as part of the programme. Most of the participants believed that the objectives of the feeding programme, including, reduced hunger among learners, increased school enrolment, attendance and enhanced participatory learning, were being met. CONCLUSION: Although the NHGSFP was implemented in every school in Enugu metropolis, Enugu State, Nigeria, regular deworming of pupils was not carried out, and there were concerns about certain aspects of the implementation, such as inadequate funding and poor quality of school meals. Thus, there is a need for the introduction of deworming and more allocation of funds to the programme to improve the quantity and nutritional quality of school meals.
RÉSUMÉ
INTRODUCTION: Adequate intermittent preventive treatment (IPTp) uptake (≥3 doses) routinely delivered at antenatal clinics is effective in preventing malaria during pregnancy. Whereas, low IPTp uptake (24.0%) had been reported among pregnant women in Ebonyi State, there is paucity of studies comparing the uptake and its predictors in the urban and rural areas of Ebonyi State. We determined IPTp uptake and its predictors in the urban and rural areas of Ebonyi State. METHODS: We conducted a cross-sectional comparative study among 864 reproductive age women selected using multistage sampling. Using a structured interviewer-administered questionnaire, we collected data on respondent's socio-demographic characteristics and IPTp uptake. Uptake was adjudged adequate if ≥3 doses were taken, otherwise inadequate. We estimated the proportion of women with adequate IPTp uptake and determined the factors associated with adequate uptake in rural and urban areas using chi square and multiple logistic regression at 5% level of significance. RESULTS: The mean ages of respondents in the urban and rural areas were 28.5±4.6 and 27.4±5.0 years respectively. Adequate IPTp uptake was 82.5% and 60.8% in the urban and rural respectively (p<0.001). In the urban area, women whose husbands had attained ≥ secondary education (aOR:2.9; 95%CI:1.2-7.4; p = 0.02) and those who paid for sulfadoxine/pyrimethamime (aOR:0.2; 95%CI: 0.1-0.6; p = 0.01) were 2.9 times more likely and 5 times less likely to take adequate IPTp respectively compared to respondents whose husbands had attained ≤ primary education and those who had sulfadoxine/pyrimethamine free. In the rural area, women who had attended ANC <4 times (aOR:0.4; 95%CI: 0.3-0.7; p<0.001) were 2.5 times less likely to take adequate IPTp compared to women that had attended ANC ≥4 times. CONCLUSION: Uptake of IPTp was more in the urban than rural areas of Ebonyi State. Interventions that reinforce the importance of health professionals carrying out actions aimed at pregnant women and their partners (spousal) in order to guide them on preventive actions against malaria and other diseases are recommended in Ebonyi State.
Sujet(s)
Antipaludiques , Paludisme , Complications parasitaires de la grossesse , Femelle , Humains , Grossesse , Jeune adulte , Adulte , Sulfadoxine/usage thérapeutique , Femmes enceintes , Complications parasitaires de la grossesse/prévention et contrôle , Nigeria , Antipaludiques/usage thérapeutique , Études transversales , Prise en charge prénatale , Paludisme/épidémiologie , Paludisme/prévention et contrôle , Paludisme/traitement médicamenteux , Association médicamenteuseRÉSUMÉ
Lassa fever (LF) is a viral hemorrhagic illness endemic in West Africa. Annually, about 300,000-500,000 people are being infected, with about 5000 deaths. Symptoms of LF include high grade fever, headache, malaise, abdominal pain, vomiting, diarrhea, or sore throat. Terminal features may include bleeding from all orifices (mouth, nose, ear, anus and vagina), facial and neck oedema or pleural effusion. People of all ages, gender, and occupations were included in this study. A total of 440 patients' samples and Bio data were used for this study. The samples were analyzed for Lassa fever virus RNA using Real Time Reverse Transcriptase Polymerase Chain Reaction. The data obtained were analyzed using SPSS 20.0 and version 7 of Epi-Info statistical software. Analysis of these samples showed LASV prevalence of 25.7%. Chi-square analysis (p ≤ 0.05) showed that LASV infection does not depend on age, gender, or occupation. Our research re-emphasized the fact that LASV is a serious cause of fatality in humans. Our data showed that among 327 negative patients, 19 died. On the contrary, 113 LASV confirmed positive cases had 42 deaths. This result is highly significant. More so, Lassa fever disease outcome was compared across gender. There was no significant difference between the two genders. Death or recovery from LF infection does not depend on sex. However, recovery from LF significantly depends on age of the patient. Fatal outcome is significantly higher among adults/elderly. We aim to raise awareness to the recurrence of LASV in Ebonyi State and urgent need for other medical interventions, including other therapeutic measures, and possible vaccine production, considering the impact of this virus.
Sujet(s)
Fièvre de Lassa/épidémiologie , Adolescent , Adulte , Enfant , Enfant d'âge préscolaire , Femelle , Humains , Nourrisson , Nouveau-né , Mâle , Adulte d'âge moyen , Nigeria/épidémiologie , Prévalence , Jeune adulteRÉSUMÉ
BACKGROUND: The signs and symptoms of Lassa fever are initially indistinguishable from other febrile illnesses common in the tropics and complications of pregnancy. Surviving Lassa fever during pregnancy is rare. Only few cases have been documented. The antiviral drug of choice is ribavirin. CASE DESCRIPTION: A 25-year-old multigravida farmer with fever who was initially thought to have malaria in pregnancy at 29 weeks gestation. Further changes in her clinical state and laboratory tests led to a confirmation of Lassa fever. The Liver enzymes were markedly deranged and the packed cell volume was 27%. She commenced on ribavirin and subsequently was delivered of a live male neonate who was RT PCR negative for Lassa fever virus. Her clinical state improved, repeat RT PCR on day 15 was negative and she made full recovery. DISCUSSION: The case reported had similar clinical features of fever and abdominal pain and resulted in the initial diagnoses of Malaria in pregnancy. When she failed to respond to antimalarial and antibiotics treatments, a strong suspicion of viral hemorrhagic fever was made. At this time the patient was in advanced stage of the disease with bleeding from vagina and puncture sites. On the third day of admission she was delivered of a live male neonate who remained negative after 2 consecutive RT PCR tests for Lassa fever virus. Lassa fever carries a high risk of death to the fetus throughout pregnancy and to the mother in the third trimester. Mothers with Lassa fever improved rapidly after evacuation of the uterus by spontaneous abortion, or normal delivery. She was clinically stable following delivery. Her laboratory investigations were essentially normal. Throughout her management transmission based precautions were observed. None of the six close contacts developed symptoms after been followed up for 21 days. CONCLUSION: This report adds to the body of literature that individuals can survive Lassa fever during pregnancy with good maternal and fetal outcome.
Sujet(s)
Fièvre de Lassa/virologie , Complications de la grossesse/virologie , Adulte , Antiviraux/usage thérapeutique , Femelle , Fièvre/diagnostic , Fièvre/traitement médicamenteux , Fièvre/physiopathologie , Fièvre/virologie , Humains , Nouveau-né , Fièvre de Lassa/diagnostic , Fièvre de Lassa/traitement médicamenteux , Fièvre de Lassa/physiopathologie , Virus de Lassa/effets des médicaments et des substances chimiques , Virus de Lassa/génétique , Virus de Lassa/isolement et purification , Mâle , Grossesse , Complications de la grossesse/diagnostic , Complications de la grossesse/traitement médicamenteux , Complications de la grossesse/physiopathologie , Issue de la grossesse , Ribavirine/usage thérapeutiqueRÉSUMÉ
Background: Mother-to-child transmission (MTCT) of HIV accounts for over 90% of all pediatrics infection globally. Strict adherence to antiretroviral drugs is needed to achieve maximal reduction of HIV transmission in pregnancy. Objective: To determine the level of adherence among HIV infected pregnant women on Prevention of Mother to Child Transmission. (PMTCT) antiretroviral therapy and to establish the factors that contribute to poor adherence. Methods: A cross sectional study was conducted in which 268 HIV positive pregnant women were recruited by systematic sampling method from PMTCT clinic of Federal Teaching Hospital Abakaliki. Pre tested interviewer administered questionnaire was used for data collection. Information on socio-demographic characteristics, knowledge of PMTCT, barriers to PMTCT and obstetric characteristics were obtained. Knowledge on PMTCT was accessed and a score of <4 out of 5 indicated poor knowledge. Adherence Level was calculated using the respondent self-report using (3 day recall) and a value < 95% indicated poor adherence. Data were analyzed using descriptive statistics, Chi square and logistic regression (p ⤠0.05). Results: The mean age was 30.7 ± 4.2 years. Two hundred and nineteen (81.7%) of the respondents were married, 124 (46.3%) were traders and 141 (52.6%) had secondary education. The prevalence of good adherence was 89.2% and 227 (89.0%) had good knowledge of PMTCT. Fear of being identified as HIV positive (21%) pregnancy related illness (13.7%) and forgetfulness (12.5%) were the most common reasons for non-adherence. Partner's support (OR=.03, 95% CI=0.01-0.09, p=0.001), and duration of ART (OR=4.39, 95% CI=1.3- 14.5, p=0.019) at bivariate analysis were found to be significantly associated with good adherence. Partners support (OR=0.027, 95%CI=0.01-0.09) retained the association with good adherence after controlling for cofounders. Conclusion: The study identified that stigmatization and pregnancy related illnesses were related to poor adherence while having Partners support improve adherence to HAART