Health impact assessment (HIA) provides useful information on existing health services, their capabilities and the health status of the local communities, which is otherwise often unavailable. In Nigeria, HIA is usually applied to projects and, by exposing existing health inequities in project communities, provides the necessary tool for development proponents to act to provide or improve health services and to implement health promotion activities. Based on HIA experience in Nigeria, this paper highlights the deficiencies in national legislation with regards to HIA/EIA (environmental impact assessment) integration and a number of learning points are discussed. First, a complete health baseline is critical to the understanding of project impacts; analysis must be broad-based, considering existing health determinants. Second, community stakeholders and proponents may modify the implementation of health mitigation measures and should be seen as collaborators in the assessment process. Third, strong HIA recommendations can influence project design. A greater participation of the health sector in EIA is required to enhance HIA utilization.

Background Onchocerciasis is a disease of public health concern due to the devastating consequences of the disease which impacts negatively on the lives of the people. The negative impact of the disease may affect its perception and lead to the adoption of some coping strategies. Therefore, understanding the disease perception, impacts and coping strategies used by onchocerciasis patients will help plan health interventions aimed at improving their general well-being. Methods This was a community-based study that employed a qualitative method through Key informant interviews (KII) with program managers and focus group discussions (FGD) among people who had Onchocerciasis. Four sessions of FGDs with a total of thirty-two (32) participants and eleven KIIs were conducted to ascertain their in-depth experience in five thematic areas. Results In these communities, onchocerciasis is perceived to have been caused mainly by the bite of blackflies. Other presumed causes by the patients included drinking polluted water, poor environmental sanitation and witchcraft. The disease had a significant detrimental influence on both the physical and financial aspects of life with limited emotional and social impacts. The long-term clinical manifestations of onchocerciasis triggered pain and insufficient mobility. Thus, onchocerciasis patients experienced impairment in normal daily life activities (farming, etc.), dependency, depression and inability to participate in social events. These manifestations stimulated various coping strategies, mainly, nodulectomy by traditional healers. Others included self-medication, taking an overdose of ivermectin, and the use of alcohol. Conclusion Misconceptions about the cause of onchocerciasis still exist among people with the disease. The consequences of the disease impact negatively on various aspects of their lives and stimulate various coping strategies. Therefore, health promotion messages to the public should aim at dispelling misconceptions about the disease and promote healthy coping strategies.

Background. There is fast-growing epidemiologic evidence of the effects of environmental chemicals on respiratory health. Polycyclic aromatic hydrocarbons (PAHs) have been linked with airway obstruction common in asthma and/or asthma exacerbation, and chronic bronchitis and emphysema. Objectives. A systematic review of the association between exposure to PAHs and obstructive lung diseases is not yet available. The present systematic review aims to evaluate the evidence available in epidemiological studies that have associated PAHs with obstructive lung diseases such as asthma, chronic bronchitis, emphysema. Methods. We performed a systematic literature search on PubMed, Google Scholar, and Scopus databases using relevant keywords and guided by predesigned eligibility criteria. Results. From the total of 30 articles reviewed, 16 articles examined the link between PAHs and lung function in both adults and children. Twelve articles investigated the association between PAHs and asthma, asthma biomarkers, and/or asthma symptoms in children. Two articles studied the relationship between PAHs and fractional exhaled nitric oxide (FeNO), a biomarker of airway inflammation and the relationship between PAHs and obstructive lung diseases and infections, respectively. One study assessed exposure to daily ambient PAHs and cough occurrence. Discussion. Twenty-seven studies found an association between PAHs and asthma and reduced lung function. In children it is reinforced by studies on prenatal and postnatal exposure, whereas in adults, reductions in lung function tests marked by low forced expiratory volume in 1 second, (FEV1), forced vital capacity (FVC), and forced expiratory flow (FEF25–75%) were the major health outcomes. Some studies recorded contrasting results: insignificant and/or no association between the two variables of interest. The studies reviewed had limitations ranging from small sample size, to the use of cross-sectional rather than longitudinal study design. Conclusions. The literature reviewed in the present study largely suggest positive correlations between PAHs and obstructive lung diseases marked mainly by asthma and reduced respiratory function. This review was registered with PROSPERO (Registration no: CRD42020212894) Competing Interests. The authors declare no competing financial interests.

Hepatitis B and C viral infections are amongst the most critical occupation-related infections in the hospital workplace. This study assesses the determinants of uptake and completion of hepatitis B vaccine amongst health care personnel (HCP) in a tertiary health facility in South-South, Nigeria. This study employs a descriptive cross-sectional study design, and data were collected using a quantitative method. Pre-tested, semi-structured interviewer-administered questionnaires were administered to 280 HCP. The IBM SPSS version 21.0 was used for data analysis. About half of HCP had received the first dose of the hepatitis B vaccine, with less than half of that number completing the third dose. It is significantly higher amongst the core healthcare professionals than the non-healthcare professionals. There is a high drop-out rate in the hepatitis B vaccination process which was more amongst the non-clinical group than the clinical. The short duration of work (1-5 years) is a significant predictor of initiation of the vaccination process, while good knowledge of hepatitis B and C viruses was a strong predictor for complete uptake. This study reveals a fair uptake of the first dose of hepatitis B vaccine amongst HCP with a high drop-out rate and a concomitant low completion of the vaccine course amongst respondents. Priority should be given to ensure planned programmes that will help enhance optimal uptake of hepatitis B vaccine amongst HCP.