Which of the following pathogens are not killed during disinfecting procedures?

The correct answer highlights that mycotic (fungal) spores are often resistant to standard disinfecting procedures. While many disinfectants are effective against bacteria, viruses, and even some protozoa, fungal spores have a resilient structure that can withstand certain chemical agents. Fungal spores can persist in the environment and can require more rigorous sterilization methods to eliminate completely.

For effective infection control, it is crucial to understand the limitations of disinfectants in targeting various pathogens. For instance, while bacterial spores, which are highly resistant forms of bacteria, may require specific spore-forming disinfectants to ensure they are inactive, many treatment protocols are designed with mortality against viruses and protozoa in mind. Recognizing the resistance levels of different pathogens helps dental professionals choose appropriate cleaning and sterilization methods to maintain a safe and hygienic environment.