Data expansion:
Biosafety laboratory, that is, biological laboratory, is a place to carry out biology-related experiments. With the stricter quality control requirements, the demand for constant temperature and humidity environment is increasing, and the application fields are getting wider and wider. There are biological laboratories in general schools, and the blood laboratory in hospitals is also a biosafety laboratory. Usually, people go to the biology laboratory to study and study, and they are graded according to the different subjects. A * * * is divided into four levels.
Security level:
Basic Laboratory-Biosafety Level I:
This kind of laboratory is suitable for those who have determined that it will not cause any disease to adults immediately or pose minimal danger to laboratory personnel and laboratory personnel (CDC, USA, 1997). This laboratory can handle a variety of common pathogens, such as canine infectious hepatitis and non-infectious Escherichia coli, and cultivate non-infectious bacteria and tissues.
At this level, the measures needed to prevent the biological damage of the problem are minimal, gloves and some facial protection. Different from other kinds of special laboratories, such laboratories do not necessarily need to be separated from public transportation, but only need to open the experimental platform and follow the technical specification for microbial operation (GMT) of such laboratories.
Generally, contaminated materials are left in open (but separately labeled) waste containers. In addition, this type of post-experiment cleaning procedure is similar to our preventive measures for microorganisms in modern daily life (for example, washing hands with antibacterial soap, cleaning all exposed surfaces in the laboratory with disinfectant, etc.). ).
All materials used by cells and/or bacteria in the laboratory environment must be sterilized by autoclave. Laboratory personnel must be supervised by scientists trained in general microbiology or related science, and must be trained in laboratory operating procedures in advance.
Basic Laboratory-Biosafety Level II:
This kind of laboratory is similar to biosafety level 1, but its pathogen is moderate, which is potentially dangerous to people and the environment. This kind of laboratory can handle many kinds of bacteria, and bacteria only cause minor diseases to human beings, or it is difficult to survive in aerosol in the laboratory environment.
The pathogens suitable for it include all kinds of bacteria and viruses, which only cause slight diseases to human beings, or are difficult to survive in aerosol in laboratory environment, such as Clostridium difficile, most chlamydia, A; Hepatitis B is related to hepatitis C, influenza A, Lyme disease, salmonella, mumps virus, measles virus, HIV and scrapie.