Worldwide, public health systems are continually challenged by emerging and re-emerging viruses. It is therefore important that high-containment labs coordinate and communicate globally to share their experiences and lessons to improve their capacity to respond to threats. The National Biosafety (Level 4) Laboratory in Wuhan, CAS, which is the first Level 4 biosafety laboratory (BSL-4) in China, has been certified recently and it is expected to play an important role in the prevention and control of highly infectious agents in future. Trained and experienced staff in such organizations is the most important factor contributing to safety and security. Therefore, it is imperative to develop a standard training program. Accordingly, in the present study, we developed an improved training program and assessment system based on policies and practices developed by BSL-3/4s in other countries. It included the following three components: (1) A flexible modularized theoretical training: This training comprised 14 modularized theoretical topics such that staffs with different backgrounds could take this theoretical training with different topic combinations according to their knowledge and skill levels; (2) A standardized practical training assessment: This comprehensive assessment, which could be used with biosafety laboratory staff before, during, and after training, included standard operation procedures to meet the special requirements of trainees with different scores; and (3) An applicable documentation system: A certification system was established to evaluate the ability of all staff working inside or outside the laboratory, implemented by a special committee. This certification was approved and authorized by the director of the laboratory and was classified into three grades with corresponding minimal requirements. Further, the present study examined the importance of and need for networking for training BSL-3/4 staff. The establishment of rigorous standards for training BSL-3/4 staff will instill confidence in the public, policy makers, and security officials. Additionally, the expanded international network of BSL-3/4s will continue to be operated safely and will pose no risk to scientific staff, local communities, surrounding environment, and host nations. The clarification and coordination of training standards will help develop a highly-qualified biocontainment workforce and will result in a series of programs that will enable scientists to develop measures to deal with existing threat agents and new diseases that emerge.
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http://dx.doi.org/10.1016/j.jobb.2018.12.004 | DOI Listing |
Front Cell Dev Biol
December 2024
Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China.
Plant-driven extracellular vesicles (PEVs) have attracted significant interest due to their natural origin, remarkable bioactivity, and efficacy in drug encapsulation and target delivery. In our work, extracellular vesicles from Citri Reticulate Pericranium (CEVs) were isolated and investigated their physicochemical characteristics and biological activities. We identified the vesicle structures as regular, with a particle size of approximately 200 nm.
View Article and Find Full Text PDFEnviron Res
January 2025
State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture and Rural Affairs of China, Beijing 100081, China. Electronic address:
At present, it is highly important to develop nanopesticide, which can improve the effect of pesticides and reduce the risks of environmental. Zeolitic imidazolate framework (ZIF) is usually used as a nanocarrier of nanopesticide, which has a porous structure and stimuli-responsive properties. However, the drug loading performance and stability of ZIF are poor.
View Article and Find Full Text PDFJ Mater Chem B
January 2025
Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, P. R. China.
Powdered collagen is emerging as a promising topical hemostat owing to its adaptability to various wounds, active hemostatic abilities, and biosafety. The reproduction of a bionic structure similar to natural collagen is crucial for effective hemostasis and bioactivity. Additional factors relevant to clinical application include antimicrobial properties, minimal immune response, and straightforward preparation.
View Article and Find Full Text PDFJ Vis Exp
December 2024
Institute of Microbiology, Infectious Diseases and Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin;
The use of laboratory mice with a natural microbiome, such as "Wildling mice", offers a promising research tool for both basic and applied science due to their close resemblance to the human superorganism. However, the breeding and maintenance of these mice, which harbor a diverse microbiome including bacteria, viruses, and parasites, pose significant challenges for animal husbandry facilities at research institutions. To address these challenges, a specialized facility concept was developed for housing "Wildling mice" at Charité - Universitätsmedizin Berlin.
View Article and Find Full Text PDFMessenger RNA (mRNA) therapeutics have garnered considerable attention due to their remarkable efficacy in the treatment of various diseases. The COVID-19 mRNA vaccine and RSV mRNA vaccine have been approved on the market. Due to the inherent nuclease-instability and negative charge of mRNA, delivery systems are developed to protect the mRNA from degradation and facilitate its crossing cell membrane to express functional proteins or peptides in the cytoplasm.
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