What are the main transmission routes of hospital infections?

The transmission route is the way pathogens spread from the infectious source to susceptible people.

The main transmission routes are as follows:

a. Contact transmission: It is the most common and important mode of transmission of hospital infection, including direct contact transmission and indirect contact transmission. Common contact-transmitted diseases include intestinal infections, multidrug-resistant bacterial infections, skin infections, etc.

b. Airborne transmission: Microparticles (diameter ≤ 5 μm) carrying pathogenic microorganisms spread diseases through air flow. Common airborne diseases include tuberculosis, chickenpox, measles, etc.

c.Droplet transmission: refers to the spread of diseases caused by droplet nuclei (diameter > 5 μm) carrying pathogenic microorganisms moving in the air over a short distance (within 1 m) to the oral, nasal mucosa or conjunctiva of susceptible people, such as influenza, new coronavirus, viral mumps, whooping cough, diphtheria, epidemic cerebrospinal meningitis, etc.

d.Waterborne transmission: Waterborne pathogens such as Pseudomonas aeruginosa, Legionella, and nontuberculous mycobacteria are also transmitted through contact or medical supplies.

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