What organisms are primarily targeted by disinfecting nonporous items?

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The focus of disinfecting nonporous items is primarily on bacteria, viruses, and fungi, making this the correct choice. Nonporous surfaces, such as metal, glass, and certain plastics, do not absorb liquids and thus provide a suitable environment where pathogens can reside. Disinfectants are formulated to eliminate these microorganisms that can cause infections or other health issues.

Bacteria are single-celled organisms that can multiply quickly and lead to various infections. Viruses, being smaller and requiring a host to reproduce, can also adhere to surfaces and pose a risk of transmission. Fungi, including molds and yeasts, can similarly thrive on nonporous surfaces and may cause various health concerns as well.

While parasites and protozoa are important in public health, they are less likely to be present on nonporous surfaces since they typically require a living host to survive. Allergens and dust mites, on the other hand, are primarily concerns in relation to allergies and respiratory issues rather than direct infections. Proteins, while important in biological processes, do not represent organisms targeted by disinfectants. Therefore, the emphasis on disinfecting nonporous items specifically addresses the risks posed by bacteria, viruses, and fungi.

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