Mrs. Wilson is 78 years old and over the past few years she has become increasingly susceptible to bouts of pneumonia. This can most clearly be attributed to

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Quizplus · Accepted Answer

As people age, their immune system may weaken and become less effective at fighting off infections, including pneumonia. This is a common reason why older adults may become more susceptible to pneumonia. A and C are not related to pneumonia, and while neurogenesis plays a role in brain function, it is not directly related to susceptibility to pneumonia.

Mrs Wilson Is 78 Years Old and Over the Past