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Safety Precautions and Operating Procedures in an ABSL-4 Laboratory: 3. Aerobiology
Published on: October 3, 2016
Laboratory-acquired lethal infections by potential bioweapons pathogens including Ebola in 2014
1Department of Microbiology and Immunology, University of Illinois, 835 S. Wolcott, Chicago, IL 60612, USA simon@uic.edu.
Abstract:
Researchers studying both cellular and viral disease agents in the laboratory have become infected since the early days of microbiology 150 years ago. However, in the early 21st century, new concerns about bioweapons being used to generate terror and also with a series of newly emerging or newly understood disease-causing microbes have resulted in infections and deaths of workers studying these microbes in the laboratory, generally to gain understanding and to develop treatments and vaccines. Here, five examples are summarized: (i) smallpox virus escaped from a UK laboratory where it was being maintained and stored, (ii) the 2014 infections and deaths of five researchers who were isolating West African Ebola virus for DNA sequencing epidemiology studies, (iii) and (iv) two recent infections that happened in the same US laboratory where researchers were infected with agents causing septicemic Yersinia plague and Bacillus anthrax and (v) the 2012 death in California from laboratory infection by Neisseria meningitidis resulting in spinal meningitis.
Insights
Laboratory-acquired infections pose risks, with recent cases involving dangerous pathogens like smallpox, Ebola, plague, anthrax, and meningitis, highlighting the need for stringent biosafety protocols.
Area of Science:
- Microbiology
- Infectious Diseases
- Occupational Health
Background:
- Laboratory-acquired infections (LAIs) have a long history in microbiology.
- Emerging infectious diseases and bioweapon concerns have heightened risks for laboratory workers.
- Recent incidents underscore the persistent dangers of studying hazardous pathogens.
Purpose of the Study:
- To summarize recent significant laboratory-acquired infections and deaths.
- To highlight the diverse range of pathogens involved in LAIs.
- To emphasize the ongoing risks in diagnostic and research laboratories.
Main Methods:
- Review and summary of five specific case examples of LAIs.
- Inclusion of incidents involving viral and bacterial agents.
- Focus on cases occurring in the early 21st century.
Main Results:
- Smallpox virus escaped from a UK laboratory.
- Five researchers died from Ebola virus in 2014.
- Infections with Yersinia pestis (plague) and Bacillus anthracis (anthrax) occurred in a US lab.
- A fatal Neisseria meningitidis infection (meningitis) occurred in California in 2012.
Conclusions:
- Studying dangerous pathogens in laboratories continues to pose significant risks.
- Enhanced biosafety measures are crucial to prevent LAIs.
- These incidents necessitate ongoing vigilance and improved safety protocols in microbiology labs.
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