Identifying symptoms of illness based on patient statements; Exploring factors contributing to illness.
Symptom: The patient's statement 'I have a fever' indicates the symptom of the problem in this scenario. Fever is a common symptom of various illnesses, including influenza.
Example: John experiencing a fever and other flu-like symptoms is an example of a symptom that can help in diagnosing an illness.
Factors contributing to illness: In John's case, factors like not getting the flu vaccine may have contributed to his illness, as suggested by the physician.
https://brainly.com/question/51166930