audreymiller0606 audreymiller0606

09-06-2020
Health

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JoAnn has a cold. She is coughing up mucus from her lungs. Joann is the portal of entry chain of transmission. The mucus from her cough is the portal of exit in the chain of transmission

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peterickj5431 peterickj5431

09-06-2020

Answer:

Explanation: the mucus exits the mouth

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