Britannica AI Icon

Quick Summary

Pulmonary tuberculosis (TB) is an infectious disease caused by the bacterium Mycobacterium tuberculosis. It primarily affects the lungs, leading to symptoms such as a persistent cough, chest pain, and shortness of breath. Other common signs include fever, night sweats, fatigue, loss of appetite, and weight loss. The disease can cause lung tissue to break down, forming cavities and potentially leading to coughing up blood. Historically, TB was a major cause of death, but the development of antibiotic drugs has significantly reduced mortality rates in developed countries. However, it remains a serious concern in regions with limited healthcare and hygiene, and the rise of drug-resistant strains complicates treatment.123

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.