Question

what are the symptoms of TB ​

Answer 1

Most people infected with the bacteria that cause tuberculosis don't have symptoms. When symptoms do occur, they usually include a cough (sometimes blood-tinged), weight loss, night sweats and fever.

Answer 2

Explanation:

Tuberculosis (TB) is a chronic, progressive mycobacterial infection, often with a period of latency following initial infection. TB most commonly affects the lungs. Symptoms include productive cough, fever, weight loss, and malaise. Diagnosis is most often by sputum smear and culture and, increasingly, by rapid molecular-based diagnostic tests. Treatment is with multiple antimicrobial drugs given for at least 6 mo.

(See also Perinatal Tuberculosis.)

Mycobacteria are small, slow-growing, aerobic bacilli. They are distinguished by a complex, lipid-rich cell envelope responsible for their characterization as acid-fast (ie, resistant to decolorization by acid after staining with carbolfuchsin) and their relative resistance to Gram stain. The most common mycobacterial infection is tuberculosis; others include leprosy and various mycobacterial infections that resemble tuberculosis, such as those caused by Mycobacterium avium complex.

Tuberculosis is a leading infectious cause of morbidity and mortality in adults worldwide, killing about 1.7 million people in 2016, most of them in low- and middle-income countries. HIV/AIDS is the most important factor predisposing to TB infection and mortality in parts of the world where both infections are prevalent.