Which of the following are symptoms of tuberculosis (TB)?

The symptoms of tuberculosis (TB) primarily include a persistent cough, night sweats, and fever. These are classic indicators of TB infection, which primarily affects the lungs but can also have systemic manifestations. The coughing associated with TB is usually prolonged and can be accompanied by the coughing up of blood in more advanced cases. Night sweats are particularly notable because they reflect a systemic response to the infection, and fever is a common sign of many infections, including TB.

In contrast, while options that include symptoms like headaches, fatigue, abdominal pain, and dizziness may represent signs of other illnesses, they are not signature symptoms of tuberculosis. Weight gain and chills do not align with TB symptoms, as TB typically causes weight loss due to systemic illness and can also lead to chills but are not definitive symptoms. Understanding the characteristic symptoms of tuberculosis is crucial for early detection and appropriate treatment, especially in a dental context where infection control is paramount.