Occupational Safety and Health Administration (OSHA) SLC Practice Exam

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Which of the following best defines a communicable disease?

  1. A disease that causes internal damage

  2. A disease that is spread from one host to another

  3. An illness that comes from nonspecific symptoms

  4. A syndrome with no known source

The correct answer is: A disease that is spread from one host to another

A communicable disease is best defined as a disease that is spread from one host to another. This definition highlights the mode of transmission, which is key to understanding communicable diseases. These diseases can be caused by infectious agents like bacteria, viruses, fungi, or parasites, and they can be transferred through various means such as direct contact, airborne transmission, or vector-borne routes. Recognizing the importance of how these diseases spread is essential for implementing effective prevention and control measures. Understanding that communicable diseases can be passed between individuals emphasizes the necessity for public health interventions, such as vaccinations and hygiene practices, to prevent outbreaks and protect community health.

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