Noma disease among internally displaced persons in Northeast Nigeria: a retrospective descriptive study.

Background: Recently recognized by the World Health Organization as a neglected tropical disease, Noma, an acute and destructive gangrenous disease affecting the gums and facial structures within the oral cavity, has a high mortality rate if untreated. Objectives: To investigate the prevalence and impact of Noma among internally displaced populations in Northeastern Nigeria. Design: A retrospective study. Methods: This retrospective study investigates the prevalence and impact of Noma among internally displaced populations in Northeastern Nigeria. Noma is endemic in Northern Nigeria, Africa, and its occurrence has been linked to extreme poverty, malnutrition, poor hygiene, and inadequate healthcare - conditions exacerbated by the ongoing Boko Haram conflict. Results: The retrospective descriptive cross-sectional analysis of 17 cases reveals a median age of 8 years, with most of the patients being children who suffer significant social stigmas, such as difficulties in speaking, eating, and social integration, including reduced school attendance and marital prospects. Conclusion: The study highlights the urgent need for comprehensive research into the etiology of Noma and its socio-economic impact. It emphasizes the necessity for early and effective intervention strategies, particularly in conflict-stricken areas with limited healthcare access.

Cross-sectional survey data on the socio-demographic characteristics associated with substance use among internal displaced persons in Maiduguri, Nigeria.

Regression analysis was carried out to examine the association between certain socio-demographic characteristics and substance use among internally displaced persons (IDPs). Using an adapted version of the Drug Use Disorder Identification Test (DUDIT) instrument, cross-sectional survey data were obtained from 520 IDPs living in three camps located in Maiduguri, Borno state of Nigeria. The data were analyzed using Statistical Package for Social Sciences software version 21.0. Specifically, this article provides data about the participants' demographic characteristics, the types of substances they use, reasons for using such substances, and the prevalence of substance use. This dataset can offer valuable multivariate information for future research agendas in similar, or closely related study populations. This cross-sectional dataset is also valuable for policymakers who are seeking ways to intervene in the substance use problem, as well as other associated social vices, affecting the vulnerable population of IDPs.

Evaluation of the Effect of Surgical Repair on Lip-Nose Morphometric Parameters of Patients with Unilateral Cleft Lip using Two-Dimensional Photogrammetry: A Comparative Study between the Cleft and the Non-Cleft Side.

Background: This prospective, comparative study was carried out to evaluate the effect of cleft lip repair on lip-nose morphometric characteristics of subjects with complete unilateral cleft lip/palate at the University of Maiduguri Teaching Hospital, Borno State, Nigeria. Materials and Methods: The study population consisted of a total of 29 subjects. Lip repair was done using Millard's rotation advancement technique by a single consultant. Standardised photographs were taken; preoperatively and during different postoperative periods; immediately, 1 week, 3, and 6 months. Indirect measurements of eight linear distances were carried out using Rulerswift software application. For all statistical analyses of mean difference, a P-value of less than 0.05 was accepted as being statistically significant. Results: A total of 52% were women, whereas 44% were men. There are considerable disparities between the cleft and non-cleft sides of complete unilateral cleft patients before surgery; statistically significant differences of 1.4 mm, 6.3 mm, and -17.6 mm in vertical lip height, philtral height, and nasal width respectively. Six months after repair, statistically significant differences in lip height between the cleft and the non-cleft side were observed in vertical lip height, nasal width, and philtral height (mean difference of -1.28 ± 0.78, 2.02 ± 2.86, 1.22 ± 1.83 mm; P < 0.001, P = 0.016, P = 0.022, respectively). Horizontal lip height was maintained with no statistically significant difference (mean difference of -0.12 ± 2.19 mm). Conclusion: Following cleft repair, using Millard's rotation advancement technique, differences in lip-nose morphometric parameters were found to be reduced, however, not always eliminated by treatment.

Prevalence and characteristics of rotavirus acute gastroenteritis among under-five children in ahmadu bello university teaching hospital, Zaria, Nigeria.

Background: Rotavirus infection is a significant cause of gastroenteritis in developing countries and, in severe cases even leads to death. The impact of rotavirus vaccine introduction in reducing the rotavirus disease burden in children was well known. The study was aimed to determine the prevalence and clinical characteristics of rotavirus gastroenteritis before the introduction of rotavirus vaccine into Nigeria's routine immunization program. Materials and Methods: We conducted a cross-sectional hospital-based study involving 735 children aged 0-59 months with acute gastroenteritis hospitalized at the Ahmadu Bello University Teaching Hospital Zaria from September 2017 to August 2020. Relevant sociodemographic and clinical data were obtained and entered into the World Health Organization standardized case investigation forms. Stool specimens were tested for rotavirus Group A antigen using the ProSpecT™ Rotavirus Microplate Assay by Thermoscientific Oxoid Microbiology UK. Results: One hundred and fifty-three stool samples tested positive for rotavirus giving a prevalence of 20.8%. One hundred and two (66.7%) children with rotavirus gastroenteritis were infants. There were 87 males and 66 females with M: F ratio of 1.3:1. Only 30 (19.6%) children with rotavirus-associated diarrhea presented with severe dehydration. The presence of vomiting was significantly associated with rotavirus diarrhea (P = 0.001). More cases of rotavirus diarrhea occurred in September through February. None of the studied children were vaccinated against rotavirus. Conclusion: The prevalence of rotavirus diarrhea remains high in this study. Infants were recognized as a high-risk group, and none of them were vaccinated against rotavirus and this underscores the urgent need for implementing the rotavirus vaccine in the national vaccination program to reduce the disease burden in the country.

Résumé L'infection à rotavirus est une cause importante de gastro-entérite dans les pays en développement et, dans les cas graves, entraîne même la mort. L'impact de l'introduction du vaccin antirotavirus pour réduire le fardeau de la maladie à rotavirus chez les enfants était bien connue. L'étude visait à déterminer la prévalence et les caractéristiques cliniques de la gastro-entérite à rotavirus avant l'introduction du vaccin antirotavirus dans le programme de vaccination systématique du Nigéria. Matériels et méthodesNous avons mené une étude hospitalière transversale portant sur 735 enfants âgés de 0 à 59 mois atteints de gastro-entérite aiguë. hospitalisé à l'hôpital universitaire Ahmadu Bello Zaria de septembre 2017 à août 2020. Données sociodémographiques et cliniques pertinentes les données ont été obtenues et saisies dans les formulaires normalisés d'investigation de cas de l'Organisation mondiale de la santé. Des échantillons de selles ont été testés pour le rotavirus Antigène du groupe A utilisant le test sur microplaque ProSpecT™ Rotavirus par Thermoscientific Oxoid Microbiology UK. Résultatscent cinquante trois les échantillons de selles ont été testés positifs pour le rotavirus donnant une prévalence de 20,8 %. Cent deux (66,7 %) enfants atteints de gastro-entérite à rotavirus ont été nourrissons. Il y avait 87 hommes et 66 femmes avec un rapport M:F de 1,3:1. Seuls 30 (19,6 %) enfants atteints de diarrhée à rotavirus ont présenté déshydratation sévère. La présence de vomissements était significativement associée à la diarrhée à rotavirus (P = 0,001). Plus de cas de diarrhée à rotavirus se sont produits de septembre à février. Aucun des enfants étudiés n'a été vacciné contre le rotavirus. ConclusionLa prévalence de la diarrhée à rotavirus reste élevé dans cette étude. Les nourrissons ont été reconnus comme un groupe à haut risque et aucun d'entre eux n'a été vacciné contre le rotavirus, ce qui souligne la nécessité urgente de mettre en œuvre le vaccin antirotavirus dans le programme national de vaccination afin de réduire la charge de morbidité dans le pays. Mots-clésGastro-entérite aiguë, diarrhée à rotavirus, vaccin à rotavirus, Zaria.

Hoarseness in a nigerian tertiary health facility: Prevalence, aetiology and predisposing factors.

Objectives: To determine the prevalence, aetiology and predisposing factors in patients presenting with hoarseness to Usmanu Danfodiyo University Teaching Hospital, Sokoto. Methods: The study was a prospective, hospital-based study involving patients with hoarseness ≥7 years. Demographic characteristics and information on voice abuse, smoking, alcohol ingestion and gastroesophageal reflux disease (GERD) were taken. Participants had laryngeal endoscopy using a flexible nasopharyngolaryngoscopy to determine the cause of hoarseness. Results: A prevalence of 2.97% was obtained in the study, and the age range of participants was 7 to 78 years, with a male:female ratio of 1.3:1. The most common cause of hoarseness was laryngeal inflammation 38 (40.0%), followed by benign neoplasm 24 (25.3%) , malignancy 20 (21.1%) and trauma 10 (10.5%). Voice abuse, GERD and smoking were significant predisposing factors for benign neoplasm (χ2 = 8.73; P = 0.0031), inflammation (χ2 = 19.79; P < 0.0001) and malignancy of the larynx (χ2 = 10.66; P = 0.0011), respectively. Conclusion: The study showed that acute and chronic laryngeal infection and neoplasms (benign and malignant) of the larynx were the most common causes of hoarseness. Voice abuse, smoking and GERD were the commonest predisposing factors.

Correlates of Infant Feeding Practices Among HIV-positive Mothers and Controls in Northeast Nigeria.

BACKGROUND: Despite the global decline in pediatric HIV infections, infants in sub-Saharan Africa still acquire HIV infection through inappropriate feeding. OBJECTIVE: The objective of the study was to compare knowledge and predictors of infant feeding behavior between mothers living with HIV and controls of unknown HIV status in Gombe, northeast Nigeria. METHODS: A cross-section of clinic-based samples of 84 HIV-positive mothers and 170 controls of unknown status were interviewed using validated questionnaires. Knowledge scores and self-reported infant feeding practices were analyzed. Multivariate logistic regression models were employed to determine predictors for infant feeding practices. RESULTS: Transmission risk perception (95.2% vs. 65.3%) (p<0.05) and adequate knowledge of infant feeding (77.4% vs. 51.2%) (p<0.05) were higher among HIV-positive mothers than controls. Compared with mothers of unknown status (56.5%), a higher proportion of HIV-positive mothers (84.5%) reported breastfeeding the index infant exclusively for 6 months (p<0.05). In contrast, mixed feeding was more prevalent among controls (19.4% vs. 4.8%) (p<0.05). Further, over a third (39.3%) of HIV-positive mothers and 27.6% of controls weaned their infants at ≥12 months (p>0.05). Antenatal attendance, hospital delivery, knowledge, and positive attitude predicted infant feeding practices in both groups. The predictive roles of education and parity were limited to HIVpositive mothers, while the effects of maternal age and infant death were restricted to controls. CONCLUSION: Risk perception, knowledge, and exclusive breastfeeding rates were higher among mothers living with HIV. Antenatal care, hospital delivery, knowledge, and attitude predicted infant feeding practices in both groups. Girl child education, antenatal care, hospital delivery, and sustained promotion of exclusive breastfeeding with antiretroviral therapy are key to HIV-free infant survival.

Oral Habits in Children With Orofacial Clefts: A Comparative Study.

BACKGROUND AND AIM: Children with cleft lip and palate present with a wide range of dental and occlusal anomalies as a result of the cleft defect. These patients also present with oral habits which may affect their quality of life. The aim of this study was to compare the prevalence of oral habits in these children, with children without orofacial clefts. METHODOLOGY: This was a cross-sectional comparative study comparing children with repaired cleft lip and/or palate aged 3 to 12 years, with children without orofacial clefts. Ethical approval for the study was obtained from the institutional review boards of both centers. Data collection was via interviewer administered questionnaires given to the parents/guardians of the children in each group. Data analysis was carried out using SPSS version 23. The level of significance was set at P < .05. RESULTS: A total of 107 respondents participated in the study, comprising 53 children with repaired cleft lip and/or palate 54 children without orofacial clefts. The mean age for the children with Cleft lip and/or palate/ was 6.81 (standard deviation [SD] 1.898) years, while that for the control group was 7.78 (SD 1.68) years. Two oral habits recorded a significantly higher prevalence (P < .05) in the children with repaired clefts as compared to controls and these were lip sucking and bruxism. No significant difference in prevalence was recorded for all the other oral habits surveyed. CONCLUSION: A significantly higher prevalence (P < .05) was observed in lip sucking and bruxism among children with cleft lip and palate, as compared to the children without orofacial clefts.

Salivary Bacterial Count and its Implications on the Prevalence of Oral Conditions.

AIM: To determine the relationship between salivary bacterial count and some oral lesions. MATERIALS AND METHODS: This research was designed as a cross- sectional study assessing the mean bacterial count in the saliva of Nigerians in Ile-Ife who has no history of medical illness. Subjects were randomly selected from consenting staffs and students of Obafemi Awolowo University, Ile-Ife, Nigeria. Oral examinations were done and their saliva collected using spitting method. The bacterial count was determined in the laboratory by culture the bacteria after which the counting was done using colony counter. Data analysis was done using STATA 13 software. RESULTS: A total of sixty participants were recruited for the study, 41 males and 19 females, their mean age was 23.12+3.8 years. The mean salivary bacteria count among the participants was 8.41 × 108 + 1.06 × 109 per mL. The salivary bacterial count is highest among those with poor oral hygiene (1.89 × 109) and also increases with age. Males have a higher bacterial load compared to female. Subjects with periodontitis have the highest bacterial load and are significantly higher in patients with periodontitis in comparison with those who do not have periodontitis p = 0.03 Conclusion: Periodontitis is associated with the significantly higher salivary bacterial load. Male sex and increasing age were also associated with increased bacterial load in saliva. CLINICAL SIGNIFICANCE: This study showed another potential role of saliva as a reliable diagnostic tool to monitor the severity of oral infections. It also showed the association between salivary bacterial count and some oral lesions further substantiating the possibility of using saliva to monitor disease progression and treatment responses.

Performance comparison of heuristic algorithms for task scheduling in IaaS cloud computing environment.

Cloud computing infrastructure is suitable for meeting computational needs of large task sizes. Optimal scheduling of tasks in cloud computing environment has been proved to be an NP-complete problem, hence the need for the application of heuristic methods. Several heuristic algorithms have been developed and used in addressing this problem, but choosing the appropriate algorithm for solving task assignment problem of a particular nature is difficult since the methods are developed under different assumptions. Therefore, six rule based heuristic algorithms are implemented and used to schedule autonomous tasks in homogeneous and heterogeneous environments with the aim of comparing their performance in terms of cost, degree of imbalance, makespan and throughput. First Come First Serve (FCFS), Minimum Completion Time (MCT), Minimum Execution Time (MET), Max-min, Min-min and Sufferage are the heuristic algorithms considered for the performance comparison and analysis of task scheduling in cloud computing.

Correction: Hybrid Symbiotic Organisms Search Optimization Algorithm for Scheduling of Tasks on Cloud Computing Environment.

[This corrects the article DOI: 10.1371/journal.pone.0158229.].

Hybrid Symbiotic Organisms Search Optimization Algorithm for Scheduling of Tasks on Cloud Computing Environment.

Cloud computing has attracted significant attention from research community because of rapid migration rate of Information Technology services to its domain. Advances in virtualization technology has made cloud computing very popular as a result of easier deployment of application services. Tasks are submitted to cloud datacenters to be processed on pay as you go fashion. Task scheduling is one the significant research challenges in cloud computing environment. The current formulation of task scheduling problems has been shown to be NP-complete, hence finding the exact solution especially for large problem sizes is intractable. The heterogeneous and dynamic feature of cloud resources makes optimum task scheduling non-trivial. Therefore, efficient task scheduling algorithms are required for optimum resource utilization. Symbiotic Organisms Search (SOS) has been shown to perform competitively with Particle Swarm Optimization (PSO). The aim of this study is to optimize task scheduling in cloud computing environment based on a proposed Simulated Annealing (SA) based SOS (SASOS) in order to improve the convergence rate and quality of solution of SOS. The SOS algorithm has a strong global exploration capability and uses fewer parameters. The systematic reasoning ability of SA is employed to find better solutions on local solution regions, hence, adding exploration ability to SOS. Also, a fitness function is proposed which takes into account the utilization level of virtual machines (VMs) which reduced makespan and degree of imbalance among VMs. CloudSim toolkit was used to evaluate the efficiency of the proposed method using both synthetic and standard workload. Results of simulation showed that hybrid SOS performs better than SOS in terms of convergence speed, response time, degree of imbalance, and makespan.

An Efficient Next Hop Selection Algorithm for Multi-Hop Body Area Networks.

Body Area Networks (BANs) consist of various sensors which gather patient's vital signs and deliver them to doctors. One of the most significant challenges faced, is the design of an energy-efficient next hop selection algorithm to satisfy Quality of Service (QoS) requirements for different healthcare applications. In this paper, a novel efficient next hop selection algorithm is proposed in multi-hop BANs. This algorithm uses the minimum hop count and a link cost function jointly in each node to choose the best next hop node. The link cost function includes the residual energy, free buffer size, and the link reliability of the neighboring nodes, which is used to balance the energy consumption and to satisfy QoS requirements in terms of end to end delay and reliability. Extensive simulation experiments were performed to evaluate the efficiency of the proposed algorithm using the NS-2 simulator. Simulation results show that our proposed algorithm provides significant improvement in terms of energy consumption, number of packets forwarded, end to end delay and packet delivery ratio compared to the existing routing protocol.

The midwives service scheme in Nigeria.

Maternal, newborn, and child health indices in Nigeria vary widely across geopolitical zones and between urban and rural areas, mostly due to variations in the availability of skilled attendance at birth. To improve these indices, the Midwives Service Scheme (MSS) in Nigeria engaged newly graduated, unemployed, and retired midwives to work temporarily in rural areas. The midwives are posted for 1 year to selected primary care facilities linked through a cluster model in which four such facilities with the capacity to provide basic essential obstetric care are clustered around a secondary care facility with the capacity to provide comprehensive emergency obstetric care. The outcome of the MSS 1 year on has been an uneven improvement in maternal, newborn, and child health indices in the six geopolitical zones of Nigeria. Major challenges include retention, availability and training of midwives, and varying levels of commitment from state and local governments across the country, and despite the availability of skilled birth attendants at MSS facilities, women still deliver at home in some parts of the country.

Prenatal care and basic emergency obstetric care services provided at primary healthcare facilities in rural Nigeria.

OBJECTIVE: To assess the availability of prenatal care and basic emergency obstetric care services at primary healthcare (PHC) facilities in rural Nigeria. METHODS: In total, 652 PHC facilities enrolled in the Midwives Service Scheme, a government-funded program designed to reduce the national shortage of skilled birth attendants, were surveyed. RESULTS: In all, 44.0% of the PHC facilities evaluated did not provide all components of prenatal care, and only 39.0% of all pregnant women nationwide attended prenatal care clinics 4 or more times. In addition, 52.2% of the facilities were not distributing insecticide-treated nets to pregnant women, while only 36.8% of the PHC facilities provided services to prevent mother-to-child transmission of HIV. By contrast, 70.0% of the PHC facilities had access to antibiotics for the treatment of uncomplicated sepsis. Only 11.0% of clinics reported the use of vacuum extraction during labor and 36.8% provided post-abortion care services. Treatment for pre-eclampsia and eclampsia was initiated at 40.0% and 28.0% of PHC facilities, respectively, prior to referral. CONCLUSION: The present study provides useful information on the state of prenatal and basic emergency obstetric care in rural Nigeria. The data obtained indicate that changes are needed to achieve related Millennium Development Goals.

The inner ear in patients with nasal allergy.

BACKGROUND: The endolymphatic sac has been proposed as a target organ responsible for inner-ear symptom in allergic subjects. This is a report of inner-ear symptoms in patients with nasal allergy. METHOD: Retrospective review of record charts of patients with known nasal allergy presenting to the otorhinolaryngology out-patient department of the University College Hospital, Ibadan in 5 years. RESULT: Ear symptoms were found in 95/144 (66%) subjects with nasal allergy. This comprises of 41 males and 44 females (M: F = 1:1). Of these, itching of the external ear canal, hearing loss and tinnitus accounted for 63 (66%), 55 (58%) and 39 (41%), respectively, while vertigo was found in 12 (13%). Peripheral vestibular signs of imbalance were seen in 11/95. The audiological assessment of 73 subjects revealed normal pure-tone average in 43 (59%), and sensorineural hearing loss (SHL) in 17 (23.3%). The severity of SHL was mild in 6/17, moderate in 7 and moderate-to-severe in 4. The erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) were elevated in 10/15 (67%) and 6/15 (40%), while the skin sensitivity test showed reactions to dust in 32, cold in 25, cockroach in 7, perfume in 11, vegetable oil in 1 and insecticide in 2. The clinical diagnoses were idiopathic tinnitus in 25 (26.3%), Idiopathic SHL in 17 (18%), cochlear hydrop in 6 (6%) and autoimmune inner-ear disease in 6 (6%). CONCLUSION: This report suggests some peculiar predisposition to inner-ear pathology in patients with nasal allergy. However a longitudinal assessment of cochleovestibular features of nasal allergy subjects will help in its validation.