The treatment process designed to kill pathogenic organisms is called which?

• A. Disinfection
• B. Oxidation
• C. Pasteurization
• D. Sterilization

Answer: (A)

Disinfection is the process aimed at eliminating disease-causing organisms to reduce the risk of infection on surfaces and objects. It targets pathogens specifically and lowers their presence, but it doesn’t guarantee the complete removal of every microorganism or spores, which would require sterilization. Sterilization destroys all living microbes, including spores, and is used when absolute asepsis is needed. Pasteurization uses controlled heat to lower microbial load, particularly in foods, and doesn’t achieve full sterilization. Oxidation describes a chemical mechanism some agents use to kill microbes, but it isn’t itself a stand-alone treatment label like disinfection. So the best fit for a process designed to kill pathogenic organisms is disinfection.