What are the different types of TB?
There are two types of TB — latent and active. Depending on your risk factors, latent TB can re-activate and cause an active infection.
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 bacteria causes TB?
Tuberculosis (TB) is caused by a type of bacterium called Mycobacterium tuberculosis. The condition is spread when a person with an active TB infection in their lungs coughs or sneezes and someone else inhales the expelled droplets, which contain TB bacteria.
What are the symptoms of active TB?
The signature symptom of active TB is a bad cough that produces blood-tinged phlegm and can last three or more weeks. Other symptoms include chest pain, fatigue, loss of appetite, weight loss, fever, chills, and night sweats.
There are two types of TB conditions: TB disease and latent TB infection. But, if their TB germs become active, they can develop .
Which type of TB is infectious?
TB can be active or latent. Active TB is sometimes referred to as TB disease. This is the type of TB that’s contagious.
How many TB infections are there?
In 2018, 1.7 billion people were infected by TB bacteria — roughly 23% of the world’s population. TB is the leading infectious disease killer in the world, claiming 1.5 million lives each year.
What is the most common type of tuberculosis?
The most common form of active TB, is Pulmonary TB, which is TB in the lungs.
What is extrapulmonary TB?
Extrapulmonary TB (EPTB) is TB outside the lungs. EPTB includes lymphadenitis (often cervical), pleuritis, meningitis, abdominal TB including peritonitis, skeletal TB such as Pott disease (spine), and genitourinary (renal) TB.
What is the difference between TB infection and TB disease?
There is a difference between TB infection and TB disease. When a person has been exposed to someone with TB disease and has breathed in the TB germs, that person may become infected with TB. In most cases, people with healthy immune systems can contain the infection at that point and not become ill with TB disease.
Is TB viral?
What causes TB? TB in humans is caused by bacteria. The bacteria usually affect the lungs but can affect other parts of the body. Bacteria are different from viruses.
Where is TB still active?
The top 10 countries with TB (based on available reporting) are Bangladesh, China, Democratic Republic of the Congo, Ethiopia, India, Indonesia, Pakistan, the Philippines, Nigeria, and South Africa.
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 are the different types of tuberculosis?
Only a small number of people who are exposed to tuberculosis become infected, and this infection takes one of three forms: latent tuberculosis, active tuberculosis, and drug-resistant active tuberculosis. A skin prick test known as the Mantoux test is the most commonly used method for diagnosing infection.
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.