Which of the following statements about Tuberculosis (TB) is FALSE?

Let's analyze each statement to determine which one is false. Statement A is False - A TB patient is considered non-infectious when they have three consecutive negative sputum smear results, not a negative chest x-ray. Statement B is True - People who are exposed to TB bacteria may or may not develop TB infection, as it depends on various factors such as the strength of the immune system. Statement C is True - People with TB infection may or may not develop TB disease, as some individuals can have latent TB infection without showing symptoms. Statement D is False - The risk of developing TB disease is highest in the first two years after infection, but it remains throughout a person's lifetime if left untreated. Therefore, the correct answer is A.