What is meant by tubercular etiology?
Tuberculosis (TB) is caused by a type of bacterium called Mycobacterium tuberculosis. It’s spread when a person with active TB disease in their lungs coughs or sneezes and someone else inhales the expelled droplets, which contain TB bacteria.
What is the medical definition for tuberculosis?
Tuberculosis: A highly contagious infection caused by the bacterium called Mycobacterium tuberculosis. Abbreviated TB. Tubercles (tiny lumps) are a characteristic finding in TB.
How is tuberculosis defined?
Tuberculosis (TB) is a contagious infection that usually attacks your lungs. It can also spread to other parts of your body, like your brain and spine. A type of bacteria called Mycobacterium tuberculosis causes it.
What is tuberculosis pathophysiology?
Pathogenesis of TB. Infection occurs when a person inhales droplet nuclei containing tubercle bacilli that reach the alveoli of the lungs. These tubercle bacilli are ingested by alveolar macrophages; the majority of these bacilli are destroyed or inhibited.
What is the epidemiology of tuberculosis?
It is estimated that nearly 2 billion people (about one fourth of the world’s population) are infected with M. tuberculosis. Every year, about 10 million people develop TB disease and 1.6 million people die of it. In fact, TB disease is the leading cause of death due to infectious disease in the world.
What is etiology of disease?
Etiology in medicine is defined as the determination of a cause of disease or pathology. Its influence on the development of civilization can be traced back to several impressive findings, ranging from the germ theory of pathology to the modern understanding of the source of diseases and their control.
What are the early signs of tuberculosis?
Symptoms of Tuberculosis. Generally, people only show symptoms of tuberculosis when they have the active form of the disease. Early signs and symptoms may include fever, chills, and loss of appetite. The more specific symptoms of the condition include cough that lasts 3 weeks or longer, pain in the chest, and coughing up blood.
What is the life cycle of tuberculosis?
TB bacterium have a life span of roughly twelve to eighteen hours.Its life cycle as a human pathogen begins as it enters the body through the lungs. It is then taken up by the macrophages where it multiplies. The bacterium is then spread throughout the lymphatic system.
What are the signs of TB infection?
The usual symptoms that occur with an active TB infection are: a generalized tiredness or weakness, weight loss, fever, and night sweats.
What are some interesting facts about tuberculosis?
Here are the top interesting facts about tuberculosis: #1 Tuberculosis (TB) is an infectious disease which commonly affects the lungs. The bacteria ( Mycobacterium tuberculosis ) which cause this condition are spread from one individual to another through tiny droplets released into the air.