Safety Topic · 20 articles
Biological hazards include bacteria, viruses, fungi, and other microorganisms that can cause infections and diseases. This section explains different types of biological hazards, how they spread, and their impact on workplaces. Learn about hygiene practices, protective measures, and safety protocols that help reduce exposure and prevent the spread of diseases.
TL;DR Around 1 million cases and nearly 60,000 deaths occur worldwide each year, most in tropical regions (CDC Yellow Book, 2024). England averaged 57 laboratory-confirmed and 89 probable cases a year from 2020 to 2023, peaking in summer and autumn…
TL;DR — Key Numbers ~3 million healthcare workers worldwide suffer percutaneous bloodborne-pathogen exposures each year, including roughly 2 million hepatitis B and 170,000 HIV exposures (WHO, cited in BMC Health Services Research, 2021). ~385,000 sharps injuries occur annually among US…
TL;DR — The Numbers That Matter 900% increase in reported US Legionnaires' disease cases between 2000 and 2018 (CDC surveillance data, referenced in The Lancet Microbe, 2024) — and the outbreak trajectory has accelerated since. 52,000–70,000 Americans are estimated to…
TL;DR — Key Numbers 52,000–70,000 estimated actual annual US Legionnaires' disease cases versus ~10,000 reported — most cases are never diagnosed (National Academies of Sciences, Engineering, and Medicine, 2019). 5–10% overall case-fatality rate; rises to 40–80% in untreated immunocompromised patients…
In laboratory research, the need for a structured safety protocol is essential, especially when handling agents that could potentially harm humans and the environment. Biosafety Level 2 (BSL-2) is one of four biosafety levels set by the Centers for Disease…
Radiation: the word alone can spark both awe and unease. It powers our medical imaging, fuels parts of our electricity grid, and even comes to us from the stars above — yet it’s invisible, silent, and often misunderstood. Because of…
Environmental challenges are snowballing—pollution, climate change, toxic waste—and they’re outrunning old fixes. Human activity’s driving these crises, and traditional tools just aren’t cutting it anymore. Synthetic biology’s stepping up, offering bold new ways to tackle issues that once felt insurmountable.…
Biosafety Level 4 (BSL-4) represents the highest tier of laboratory safety standards, reserved for research and diagnostic work involving some of the world’s most dangerous and exotic pathogens. Think viruses like Ebola and Marburg—microbes that can cause severe, often fatal…
In laboratories worldwide, researchers work with infectious agents that could pose significant risks to human health. Among the most crucial safeguards in these environments are biosafety levels (BSLs), ranging from BSL-1 to BSL-4. These levels outline the containment protocols, safety…
Safety is paramount in biological research and laboratory work. Among the various protocols established to ensure the safe handling of microorganisms, Biosafety Level 1 (BSL-1) serves as the foundational tier. Whether you're a student stepping into a lab for the…
Biosafety is essential in laboratory and research environments, ensuring safe practices while handling biological materials, infectious agents, and toxins. Effective biosafety protocols protect researchers, the surrounding community, and the environment from unintended exposure or release of hazardous materials. In this…
Industrial hygiene is a critical field dedicated to safeguarding the health and safety of workers and the surrounding community. As industries evolve and workplaces become more complex, understanding the principles and key concepts of industrial hygiene becomes essential for maintaining…
Every safety category is listed in the A–Z directory.