Enviroment and Object Surface Disinfection

The hospital environment, especially the surface of objects, is a huge reservoir of bacteria. There are a variety of bacteria, fungi, viruses, chlamydia, and other microorganisms on the surface of objects.

Many microorganisms can survive on the surface for a long time, such as Clostridium difficile spores can survive on the dry surface for 4-5 months or more, and norovirus can survive for more than 1 week. CDC of the United States believes that direct contact between people or indirect transmission through contaminated object surfaces is one of the main ways of pathogen transmission. Pathogenic microorganisms on the surface of objects frequently contacted by patients in the nearby diagnosis and treatment area can be directly or indirectly transmitted in the hospital through the hands of medical staff.

Although the surface of the object only involves the direct transmission of infection to patients, there are good reasons to believe that it plays an important indirect role in the acquisition of pathogenic bacteria in hospitals, the contamination of medical personnel and medical equipment. Therefore, surface disinfection of objects is very important in the control of hospital infection.