Can tuberculosis be infected in treatment

Tuberculosis is a respiratory infectious disease is mainly transmitted through the air, if the patient in the treatment often prompt active tuberculosis, then this time there is a certain infectivity. For the strength of infectivity needs to be analyzed according to the patient's sputum test results, if the patient sputum test is positive, this time the infectivity is relatively strong, if the sputum test is negative, the infectivity is relatively weak. So with tuberculosis patients in contact must wear masks, to maintain a certain distance, after contact with patients to pay attention to hand washing, to pay attention to hygiene. If the patient after a period of time anti-tuberculosis, its infectivity will be significantly weakened, generally after a month of standardized anti-tuberculosis treatment often no infectivity.