METHODS: We conducted a cross-sectional study of 871 participants from three regions of Nigeria. All serum samples were analysed using malaria RDT and the immunoblot molecular diagnostic assay recomLine Tropical Fever for the presence of arboviral antibody serological marker IgG (Mikrogen Diagnostik, Neuried, Germany) with DENV and ZIKV Nonstructural protein 1 (NS 1), DENV and ZIKV Equad (variant of the envelope protein with designated mutations to increase specificity), according to the manufacturer's instructions.
RESULTS: The overall IgG antibody seropositivity against DENV-flavivirus was 44.7% (389/871); 95% CI (41.41-47.99), while ZIKV-flavivirus was 19.2% (167/871); 95% CI (0.16-0.21), and DENV-ZIKV-flavivirus cocirculation antibody seropositivity was 6.2%5 (54/871); 95% CI (0.6-0.7) in the three study regions of Nigeria. The study cohort presented similar clinical signs and symptoms of flaviviruses (DENV and ZIKV) in all three study regions.
CONCLUSION: This study highlighted an unexpectedly high antibody seropositivity, burden, hidden endemicity, and regional spread of mono- and co-circulating flaviviruses (DENV and ZIKV) in Nigeria.Key messagesDengue flavivirus sero-cross-reactivity drives antibody-dependent enhancement of ZIKV infection.Both viruses share common hosts (humans) and vectors (primarily Aedes aegypti), and are thus influenced by similar biological, ecological, and economic factors, resulting in epidemiological synergy.Additionally, the actual burden in epidemic and interepidemic periods is grossly or chronically unknown and underreported. Despite this trend and the potential public health threat, there are no reliable data, and little is known about these arboviral co-circulation infections.
METHODS: A cross-sectional nationwide online survey was conducted over a 6-week period between May and June 2019. Invitation was sent to all the Heads of pharmacy department or pharmacists in charge of infectious diseases (ID) or antimicrobial pharmacists in tertiary hospitals in Nigeria. A validated questionnaire that consist of 24-items was used for data collection.
RESULTS: Forty-five hospitals were invited and 37 completed the survey (response rate, 82.2%). Five (13.5%) hospitals had a formal antimicrobial stewardship (AMS) team, with each of them having pharmacist representation. Regardless of the existence of an AMS team, hospital pharmacists have implemented AMS strategies, including evaluation of the appropriateness of antimicrobial prescriptions (54.1%) and monitoring of antimicrobial consumption (48.6%). The most common barriers to pharmacists' involvement in ASP were lack of training in AMS and ID (51.4%), lack of pharmacists with ID specialisation (40.5%) and lack of support from hospital administrators (37.8%). The majority of the pharmacists recommended training in AMS and ID (100%), participation on ward rounds (89.2%) and employment of more pharmacists (73%) as strategies to improve pharmacists' participation in ASP.
CONCLUSIONS: Hospital pharmacists are actively involved in AMS activities despite the lack of established AMS teams in most tertiary hospitals in Nigeria. However, lack of training and personnel were major barriers to pharmacist's involvement in ASP.
Methods: Based on discouragement and organizational control theory, this research examined the effects of organizational external factors and rules and regulations on construction risk management among 238 employees operating in construction companies in Abuja and Lagos, Nigeria. A personally administered questionnaire was used to acquire the data. The data were analyzed using partial least squares structural equation modeling.
Results: A significant positive relationship between organizational external factors and construction risk management was asserted. This study also found a significant positive relationship between rules and regulations and construction risk management. As anticipated, rules and regulations were found to moderate the relationship between organizational external factors and construction risk management, with a significant positive result. Similarly, a significant interaction effect was also found between rules and regulations and organizational external factors. Implications of the research from a Nigerian point of view have also been discussed.
Conclusion: Political, economy, and technology factors helped the construction companies to reduce the chance of risk occurrence during the construction activities. Rules and regulations also helped to lessen the rate of accidents involving construction workers as well as the duration of the projects. Similarly, the influence of the organizational external factors with rules and regulations on construction risk management has proven that most of the construction companies that implement the aforementioned factors have the chance to deliver their projects within the stipulated time, cost, and qualities, which can be used as a yardstick to measure a good project.