Texas Certified Nursing Assistant (CNA)

What is a common way that methicillin-resistant Staphylococcus aureus (MRSA) is spread?

1. Through contaminated food

2. By direct physical contact

3. Via air droplets

4. Through insect bites

The correct answer is: By direct physical contact

Methicillin-resistant Staphylococcus aureus (MRSA) is primarily spread by direct physical contact, particularly in settings where individuals have close skin-to-skin interactions, such as hospitals, nursing homes, or even sports facilities. The bacteria can be present on the skin or in the nostrils of healthy individuals without causing illness, but it can be transmitted through cuts, abrasions, or direct contact with infected wounds. This mode of transmission underlines the importance of good hygiene practices, including regular hand washing and the use of personal protective equipment when caring for infected patients. Other methods of transmission, such as food contamination, airborne droplets, or insect bites, are not common pathways for MRSA. While food can carry various pathogens, MRSA is not typically transferred in this manner. Airborne transmission is associated with respiratory infections, whereas MRSA primarily requires direct contact for spread. Insect bites do not play a role in the transmission of MRSA as it is a bacterial infection rather than one transmitted through vectors. Understanding these pathways helps caregivers implement effective infection control measures.