Safety/Infection Control Practice Exam 2026 - Free Safety and Infection Control Practice Questions and Study Guide

Healthcare-associated infections (HAIs) can be caused by a variety of organisms, including bacteria, viruses, and fungi. Each of these categories has its own set of characteristics and implications for infection control.

Bacteria are the most prominent culprits behind HAIs, as they can be resistant to standard treatments, particularly in hospital environments where antibiotic use may be prevalent. Common bacteria responsible for HAIs include Staphylococcus aureus, including Methicillin-resistant Staphylococcus aureus (MRSA), Escherichia coli, and Clostridium difficile.

Viruses also play a significant role in HAIs, especially in settings where patients may be immunocompromised or in contact with infected individuals. For example, influenza and norovirus can spread rapidly in healthcare settings.

Fungi are another important group, particularly in patients who are immunocompromised or have invasive devices such as catheters. Fungal infections can be challenging to treat and can lead to severe complications, making it crucial to address these risks in infection control protocols.

Given this, stating that bacteria, viruses, and fungi are all responsible for healthcare-associated infections encompasses the full spectrum of organisms that can lead to these infections, highlighting the multifactorial nature of HAIs and the necessity for