What symptom is associated with both Tuberculosis and MRSA?

Fever is a common symptom that can be associated with both Tuberculosis (TB) and Methicillin-resistant Staphylococcus aureus (MRSA) infections. In the case of TB, patients often present with a persistent low-grade fever as part of their systemic response to the infection, which is typically coupled with other symptoms like night sweats and weight loss. Similarly, MRSA infections, especially when they lead to more extensive infections such as pneumonia or sepsis, can also manifest with fever as the body attempts to combat the bacterial infection.

While coughing blood, persistent chest pain, and weight loss can be symptoms of Tuberculosis, they are not as commonly associated with MRSA. Coughing blood is more specific to TB, while persistent chest pain might indicate serious complications, and weight loss is more gradual but can be more directly tied to chronic TB infection than to MRSA. Thus, fever serves as a broader and common indicator of infection for both TB and MRSA, making it the correct choice.