Multi-dimensional knowledge of malaria among Nigerian caregivers: implications for insecticide-treated net use by children

Abstract Background Poor malaria knowledge can negatively impact malaria control programmes. This study evaluates knowledge distribution in the domains of causation, transmission, vulnerability, symptoms, and treatment of malaria. It assesses the association between a caregiver’s knowledge about malaria and ownership and use of insecticide-treated nets (ITNs) by children. Methods Some 1939 caregivers of young children were recruited through a school-based survey in two Nigerian states. A 20-item, multi-dimensional survey instrument was developed and used to rank each caregiver’s knowledge in five dimensions (cause, transmission, vulnerability, symptoms, treatment of malaria). Scores for each domain were used to create an aggregate knowledge score for each caregiver. The outcome measures were ITN ownership, and ITN use the night and week before the study. Regression models were used to evaluate the relationship between caregiver’s knowledge (individual domains and aggregate score) and ownership and use of ITN after controlling for likely confounders. Results The main predictor of ITN use was ITN ownership (r = 0.653; p < 0.001); however, ownership only explains 43 % of variance in net use. Total knowledge index for the study population was significantly associated with both ITN ownership (r = 0.122; p = 0.001) and use (r = 0.095; p = 0.014). The spectrum of caregiver’s knowledge of malaria and its causes captured in the various domains was, however, found to be poor. Fifty percent of the respondents knew that malaria is transmitted by female mosquitoes and 65 % still believe that too much exposure to the sun is a risk factor for malaria. Knowledge of populations most vulnerable to malaria (83 %) and knowledge of malaria transmission (32 %) were the domains with the highest and lowest average correct answers. Conclusions There is a need to improve ITN coverage in Nigeria as ITN ownership was associated with ITN use. Additionally, treating knowledge as a multi-dimensional phenomenon revealed that a lot of misperceptions about malaria still exist. Distribution of ITNs through the public/private sector may need to be augmented with tailored behavioural change communication to dispel myths and improve the multi-dimensional knowledge of malaria in the local population.http://deepblue.lib.umich.edu/bitstream/2027.42/134666/1/12936_2016_Article_1557.pd

Apparent absence of Giardia infections among children under 5-years of age with acute watery diarrhoea in Abakaliki, Nigeria

Although the impact of diarrhoeal disease on paediatric health in Nigeria has decreased in recent years, it remains an important cause of morbidity and mortality in children under 5 years. Rotavirus is recognised as an important aetiological agent, but information on the contribution of intestinal protozoa to watery diarrhoea in this age group in Nigeria is scarce. In this cross-sectional study, faecal samples from children admitted to healthcare centres in Abakaliki, Nigeria with acute watery diarrhoea (N = 199) and faecal samples from age-matched controls (N = 37) were examined for Cryptosporidium and Giardia using immunofluorescent antibody testing and molecular methods. Cryptosporidium was identified in 13 case samples (6.5%) and no control samples. For three samples, molecular characterisation indicated C. hominis, GP60 subtypes IaA30R3, IaA14R3 and IdA11. Giardia was not detected in any samples. This contrast in prevalence between the two intestinal protozoa may reflect their variable epidemiologies and probably differing routes of infection. Given that these two parasitic infections are often bracketed together, it is key to realise that they not only have differing clinical spectra but also that the importance of each parasite is not the same in different age groups and/or settings.publishedVersio

Assessment of the knowledge and management of diarrhoea among women in Abakaliki metropolis, Nigeria

ABSTRACT Background: Diarrhoea remains the 2nd cause of death among children globally despite the fact that the resources to control and prevent it are inexpensive and widely available. Aim: This study was carried out to evaluate the perception of mothers regarding diarrhoea so as to identify areas in need of further education and enlightenment campaign in this community. Methods: A total of 365 mothers were surveyed at 4 Primary Health Centers in Abakaliki, South-Eastern Nigeria between January and March 2015. Pre-tested questionnaires were administered to participants who had the information translated and explained to them in local dialects. Results: Piped water was not available in this metropolis. Most participants, 88.0%, (321/365) usually wash their hands with soap and water after using the toilet. Majority of the respondents, 93.7% (342/365) agreed that inadequate sanitation and hygiene was associated with childhood diarrhoea, but there were those who believed that teething, 48.0% (175/365) can also cause diarrhoea. Overall diarrhoea incidence in the study population was 38.4% (140/365). Prevalence was lowest in children below the age of 1 year (p=0.001). Hand washing and keeping children in daycare centers had negative and positive association with diarrhoea risk respectively. Management of diarrhoea with Oral Rehydration Salt/Salt Sugar Solution was most practiced by mothers above the age of 30 years (91.7%) as well as those with the highest level of education (92%) while management which included stopping breastfeeding and normal feeding were mostly practiced by mothers below 20 years (21.9% and 34.4% respectively) and those with primary level of education (15.1 % and 18.9% respectively). Conclusion: Health education and enlightenment campaign regarding hand washing, need to continue breastfeeding /normal feeding should be scaled up in this community, especially among young mothers, those with little or no formal education as well as in day care centers

Persistence of chloroquine-resistant haplotypes of Plasmodium falciparum in children with uncomplicated Malaria in Lagos, Nigeria, four years after change of chloroquine as first-line antimalarial medicine.

BACKGROUND: In Nigeria, despite the change in National malaria drug policy to artemisinin combination therapy (ACT) in 2005 due to widespread chloroquine resistance, chloroquine (CQ) is still widely used in the treatment of malaria because it is cheap, affordable and accessible. The use of ACT for the management of uncomplicated malaria is currently being promoted. The employment of genetic markers to track circulating chloroquine-resistant parasites are useful in elucidating likely poor efficacy of chloroquine, especially in settings where it is not recommended for the treatment of uncomplicated falciparum malaria. This study determined the prevalence of pfcrt haplotypes and point mutations in pfmdr1 genes four years after the change in antimalarial treatment policy from CQ to the ACTs in Lagos, a commercial city in South-West, Nigeria. METHODS: This was a cross sectional study on uncomplicated malaria in children less than 12 years that presented with fever and other symptoms suggestive of malaria. Parasite DNA was extracted from 119 patients out of 251 children who were positive for Plasmodium falciparum by microscopy and amplified. The occurrence of haplotypes was investigated in pfcrt gene using probe-based qPCR and single nucleotide polymorphisms in pfmdr1 gene using nested PCR. RESULTS: One hundred and nine (109) of the 119 children with P falciparum infection (91.6%) harbourd parasites with the mutant pfcrt haplotype (CVIET). Out of this, 4.2% comprised a mixture of genotypes encoding CVMNK and CVIET, while 4.2% had the wild type (CVMNK). Furthermore, the frequency of point mutations in pfmdr1 was 62.2% and 69.0% for codons Y86 and F184 respectively. There were no mutations at codons 1034, 1042 and 1246 of the Pfmdr1 genes. CONCLUSION: The high frequency of the CQ-resistant haplotypes (CVIET) and mutations in Pfmdr1 associated with CQ resistance in P. falciparum among these children suggest that CQ-resistant parasites are still in circulation. Continuous use of chloroquine may continue to increase the level of mutations in pfcrt and pfmdr1genes. There is need to strengthen current case management efforts at promoting ACT use as well as urgently restricting access to chloroquine by the National drug regulatory agency, National Agency for Food Drug Administration and Control (NAFDAC). VIRTUAL SLIDES: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/2069472010142303

Histopathological patterns of childhood malignancies seen at Federal Teaching Hospital Abakaliki, Ebonyi State, Nigeria: A 10 year retrospective study

Introduction: Childhood malignancies (CM) have been one of the major causes of death in the world. It appears to be increasing in significance due to the ongoing reduction in both infectious and nutritional diseases.Aims: The study was conducted to document the histopathological pattern, age and sex distribution of childhood malignancies in a University Teaching Hospital in Southeast Nigeria.Method: The materials consisted of histology slides, formalin-fixed paraffin-embedded tissue blocks (FPTB), and requisition forms of all cases diagnosed with CM at a University Teaching Hospital between the periods January 2005 and December 2015Results: A total of 2,528 surgical biopsies were received at the Department. Only 60 (2.4%) specimens represented childhood malignancies. Thirty-one cases (51.7%) of the entire CM were lymphomas; 12 (20.0%) were non-Hodgkin lymphoma, 17 (28.3%) others were Burkitt’s type whereas 2(3.3%) were Hodgkin lymphoma. Childhood malignancies were more in males 36 (60.0 %) than females 24 (40.0%), giving a male to female ratio of 3:2. However, Burkitt’s lymphoma was higher in females 12 (70.6%) than males 5 (29.4%) with a male to female ratio of 1.2:3. Twenty-six (43.3%) cases of the CM occurred in children aged 0-5 years but 20 (36.7%) presented in children aged 11 to 15 years. Twelve (20.0%) cases were seen in children 6 to 10 years. Six (23.1%) of the children had Burkitt's lymphoma all of whom were under 5 years.Conclusion: Lymphomas were the commonest CM, Burkitt’s lymphoma being the dominant subtype in this study. There was a female preponderance of Burkitt’s lymphoma