Answer :
Final answer:
Communicable diseases, which are transmitted from one person to another, often spread through the air when an infected individual coughs or sneezes. This action releases infectious droplets that can be inhaled by others, leading to the spread of respiratory illnesses. The best answer to the quiz question is C: coughs or sneezes into the air.
Explanation:
Understanding Communicable Diseases
Communicable diseases are illnesses that can be transmitted from one person to another, primarily through pathogens such as bacteria, viruses, and parasites. One important way that these pathogens spread is through the air when an infected individual coughs or sneezes.
The act of coughing or sneezing releases tiny droplets that contain infectious agents into the environment, which can then be inhaled by others nearby. This is why respiratory illnesses like the flu and COVID-19 can spread rapidly in crowded places.
Examining the Answer Choices
- A. comes in contact with another individual - While contact can spread some diseases, not all are airborne.
- B. has an open sore that is bleeding - This could spread diseases, but does not involve airborne transmission.
- C. coughs or sneezes into the air - Correct! This is a common method of spreading airborne pathogens.
- D. is carried by one host to infect another - This choice suggests transmission by vectors or carriers, which is not the focus here.
Therefore, the correct answer to the question is C. coughs or sneezes into the air.
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