Approaches, challenges, and opportunities to strengthen the epidemic intelligence workforce: a scoping review

BACKGROUND

Weak surveillance systems have limited countries' ability to adequately respond to public health emergencies. Strengthening the human workforce in this field is considered an important opportunity to ensure the future response to infectious diseases outbreaks globally. A scoping review of the academic literature and relevant documents was conducted to identify approaches, challenges, and opportunities to strengthen the epidemic intelligence (EI) workforce.

METHODS

Five peer-reviewed databases were systematically searched, as well as Google as a grey literature source. English language articles and documents published between 2014 and 2022 were included. No geographical restrictions were set.

RESULTS

37 articles and 20 documents were included in the review. Professional training, the acknowledgement of including a broad variety of disciplines into the workforce, the inclusion of communities, the pursuit of a One Health approach and the use of digital tools were identified as impeding and/or facilitating the EI workforce. The review shows that the field epidemiology training programme is a prominent approach for strengthening the EI workforce and that little evidence exists on how non-traditional disciplines (e.g., disciplines besides medicine, laboratory science, or epidemiology) contributing to surveillance may support the future EI workforce.

CONCLUSION

The identification of approaches, challenges, and opportunities of EI can inform future policy and practice on strengthening the EI workforce. The conduct of more high-quality studies is needed to guide this process. The potential benefits of integrating a wider range of disciplines than currently found in the surveillance workforce and of involving communities in disease surveillance needs to be further researched.

Green microwave synthesis of ZnO and CeO(2) nanorods for infectious diseases control and biomedical applications

Control of Infectious diseases such as; bacteria and viruses, has become a globally critical issue, since the appearance of COVID-19 virus in 2020. In addition to the microbial resistance of the currently available therapeutic drugs as well as, its prolonged side effects make its use is of health care concern. Green nanotechnology approach is a promising solution for controlling such infectious diseases and many biomedical purposes. In the present study, green synthesis approach based on microwave-assisted hydrothermal method is an innovative and environmentally friendly method for preparation of bioactive CeO₂ and ZnO nanorod structured materials using Olea europaea (O. e.) leaf plant extract as a natural medicinal capping agent for controlling the shape and size of nano-products. The optical and structural analyses of the obtained nanorod-structures are characterized using; TEM, FTIR, XRD, SBET analyses and particle size analyzer. The green-synthesized ZnO and CeO₂ nanorods display an average crystallite size of approximately 15 and 5 nm, respectively. The antimicrobial activity of ZnO and CeO₂ nanorods compared with the traditional hydrothermal methods, was examined on six clinical pathogens including; (E. coli Serratia sp., S. aureus, Bacillus subtilis, Streptococcus mutant, and MRSA). The results indicated superior antimicrobial and anti-tumor activities towards hepatocellular carcinoma cell lines (IC₅₀ = 117.24 and 103.50 μg mL^-1 for ZnO and CeO₂ and LD₅₀ > 3000 mg kg^-1). This demonstrates that the green microwave process is a promising approach for the synthesis of effective ZnO and CeO₂ nanomaterials applied for many biomedical applications.