Biocontainment

Biocontainment is an important idea that helps keep people safe when working with tiny living things that can make us sick. It is mostly used in special labs where scientists study microbiology. These labs need strong safety measures to stop harmful pathogenic agents like bacteria, viruses, and toxins from escaping. This is done by using special secure cabinets or rooms that protect the workers and the community around them.

Biocontainment is also used in places where scientists study sicknesses that affect plants and animals. In these places, the same safety rules help stop harmful agents from getting into the air, soil, or water. This helps protect farms, wildlife, and the environment from big problems that could happen if dangerous agents were released.

Terminology

The World Health Organization explains that laboratory biosafety means using special tools and rules to stop harmful germs and toxins from accidentally hurting people or getting out of the lab. It also helps prevent these germs from being released by mistake.

The word "biocontainment" started being used in 1966. It talks about keeping very dangerous germs, like some viruses, safe inside special secure labs. This is done to make sure these germs don’t accidentally escape, especially when scientists are studying them. Biosafety in labs means taking steps to lower the chances of harmful germs getting out or infecting someone by accident. Biosecurity in labs means having systems and practices to stop dangerous germs from being stolen and used in bad ways.

Containment types

Laboratory context

Primary containment is the first line of defense that keeps dangerous materials from harming workers or spreading in the lab. This means using safe storage, careful techniques, and special equipment like biological safety cabinets to protect people and the lab.

Secondary containment protects the world outside the lab from harmful materials. This is done by designing safe buildings and following good practices.

Biological safety cabinets are common tools in labs that work with very dangerous germs. They started being sold in 1950 and come in three types: Class I, Class II, and Class III.

Biosafety suites are big lab rooms that work like large safety cabinets. Workers wear special suits to stay safe. Examples include labs at USAMRIID in Fort Detrick, Maryland, USA, and the Maximum Containment Facility of the CDC in Atlanta, Georgia, USA.

Agricultural context

In farms and labs that study plant or animal diseases, biocontainment means using safety steps to stop germs from spreading to plants, animals, air, soil, or water. While keeping workers and the public safe is important, the main goal is to stop dangerous germs from escaping into nature.

See also: Biocontainment of genetically modified organisms

Biosafety levels

Main article: Biosafety level

See also: List of biosafety level 4 organisms

A biosafety level (BSL) is how careful scientists need to be when working with tiny living things that could make people sick. These levels go from the safest, called BSL-1, to the most careful, called BSL-4. In the United States, the Centers for Disease Control and Prevention (CDC) set these rules. In the European Union, they follow the same rules in a directive.

Guidelines

In the United States, important rules for keeping safe in labs are made by the Centers for Disease Control and Prevention (CDC) and the National Institutes of Health (NIH). Since 1984, they have worked together on a guide called Biosafety in Microbiological and Medical Laboratories (BMBL). This guide gives advice on how to keep things safe in labs, including how to handle dangerous tiny living things.

In Canada, a similar guide called "Laboratory biosafety guidelines" was used from 1990 to 2013. It has now been replaced with new rules called the "Canadian Biosafety Standards and Guidelines". There is also a guide made in 2001 by experts from many countries, called OECD Best Practice Guidelines for Biological Resource Centres. This guide helps countries work together to share safe and high-quality biological materials.

Laboratory program

A laboratory biosecurity program has several important parts to keep things safe. These include making sure the physical space is secure, checking who works there, controlling materials and keeping track of them, ensuring safe transport, protecting information, and good management of the program.