: The bacteria multiply, making the person sick. Symptoms include a persistent cough, chest pain, and coughing up blood.
: Active TB is treated with a specific regimen of antibiotics over several months. Failure to complete the treatment can lead to multidrug-resistant TB (MDR-TB) , which is much harder to treat. TB-(10190934-Public).7z
Tuberculosis is a contagious bacterial infection caused by Mycobacterium tuberculosis . Although it primarily attacks the , it can spread to other parts of the body, such as the brain, spine, and kidneys. It remains one of the world's leading infectious killers, causing approximately 1.5 million deaths annually. Key Concepts in TB Research Latent vs. Active Infection : : The bacteria multiply, making the person sick
: TB is airborne . It spreads when an infected person coughs, sneezes, or speaks, releasing tiny droplets that others breathe in. It is not spread by shaking hands or sharing food. Failure to complete the treatment can lead to
: About one-quarter of the global population is estimated to be infected with TB bacteria. However, only 5–10% of those infected will develop active symptoms in their lifetime. Diagnosis and Prevention
: The BCG (Bacille Calmette-Guérin) vaccine is often given to children in high-risk countries to prevent severe forms of the disease. Data Context (10190934-Public)