North Carolina CNA Written Practice Exam 2025 – All-in-One Study Guide for Exam Success!

Infectious diseases are characterized by their ability to spread from one individual to another, typically through pathogens such as bacteria, viruses, fungi, or parasites. This transmission can occur through various means, including direct contact, droplets, airborne particles, or contaminated surfaces. The essence of an infectious disease lies in its communicability—how easily it can transmit between hosts. Understanding this characteristic is crucial in healthcare settings for implementing proper infection control measures, preventing outbreaks, and protecting both patients and healthcare workers.

The other options do not accurately represent the key traits of infectious diseases. While some infectious diseases can be chronic, not all fit this description. The statement that infectious diseases cause immediate death is an extreme viewpoint, as many infectious diseases can be mild or manageable with treatment. Lastly, the idea that they can be treated with any medication is misleading; treatment often depends on the specific type of pathogen responsible and may require targeted therapies rather than a one-size-fits-all approach.