What percentage of nosocomial infections are believed to be caused by contamination of hands of caregivers?

• A. 5%
• B. 10%
• C. 25%
• D. 15%

Answer: (D)

Hand contact is a primary route for spreading infections in hospital care. When caregivers’ hands are contaminated, pathogens can be transferred to patients, surfaces, or medical equipment during routine care. Because of this, a substantial portion of hospital-acquired infections is believed to originate from contaminated hands—about 15 percent. This figure highlights why strict hand hygiene before and after patient contact, after touching potentially contaminated surfaces, and after glove removal is one of the most effective ways to reduce infections in healthcare settings. While other transmission routes exist, focusing on cleaning hands has a clear and meaningful impact on lowering nosocomial infection rates.