Science notes

  Biosafety Containment :    ⇒ A biological safety level (BSL), or biosafety containment level, is a set of laboratory safeguards (equipment, practices, security) designed to protect researchers in the laboratory, as well as the surrounding community and environment, from infection  . Classification of infective microorganisms by risk group : Risk Group 1 ( no or low individual and community risk) : ⇒ A microorganism that is unlikely to cause human or animal disease .  Risk Group 2 ( moderate individual risk, low community risk) : ⇒ A pathogen that can cause human or animal disease but is unlikely to be a serious hazard to laboratory workers, the community, livestock or the environment. Laboratory exposures may cause serious infection, but effective treatment and preventive measures are available and the risk of spread of infection is limited.  Risk Group 3 (high individual risk, low community risk) : ⇒ A pathogen that usually causes serious human o...

  What is Disinfectant?     A disinfectant can be defined as an antimicrobial agent that can be applied on the surface of some objects in order to destroy the microorganisms residing on it. How does it destroy the micro-organisms? The simple answer to this is – antimicrobial agents.    ⇒ A disinfectant is an antimicrobial agent. It is not necessary that a disinfectant will kill all the microorganisms. It is not as effective as sterilization. The process of sterilization kills all types of living forms but a disinfectant kills only certain types of microbes. It is generally applied to a floor or a drainage system. Most of the popularly used cleaning products used in homes and offices are nothing but disinfectants . Types of Disinfectants Some common types of disinfectants include : Air disinfectants:  It is defined as the chemical substances which are used to kill the microorganisms that are suspended in the air. It can also be called as a disinfec...

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