Question

JoAnn has a cold. She is coughing up mucus (a respiratory secretion). JoAnn's lungs are the
in the chain of transmission. The mucus from her cough is the
in the chain of transmission.

Answer 1

Answer:

Joann is the chain of transmission as he is having cold. He is a portal of exit, reservoir, and portal of entry.

Explanation:

• Cough and Cold are Contagious diseases that can spread from one person to another if they are in contact. It is an example of transmission of disease by air.

• Three alternatives are available: the reservoir, the portal of entry, and the outlet of exit.

• The solutions are The reservoir in the transmission chain is JoAnn. The point of escape in the chain of transmission is the mucus from her cough.

• JoAnn serves as a reservoir since she has a cold stored in her. Since mucus is coughed outside the body, it serves as the egress portal.

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