What potential factor increases the likelihood of HAIs in healthcare environments?

Prolonged hospital stays are a significant factor that increases the likelihood of healthcare-associated infections (HAIs) in healthcare environments. When patients remain in a hospital for an extended period, they are exposed to a greater number of potential sources of infection, including invasive procedures, catheterizations, and surgical interventions, all of which can introduce pathogens. Longer hospital stays can also lead to greater opportunities for contact with healthcare personnel and surfaces that may be contaminated, further elevating the risk of infection. Additionally, patients may have weakened immune systems due to their underlying conditions or treatment regimens, making them more susceptible to acquiring infections while hospitalized. This increased duration of exposure fundamentally raises the chances of HAIs occurring.