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Doctor insights on: Is Tuberculosis Infectious

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Dr. Scott Lindquist
585 doctors shared insights

Mycobacterium Tuberculosis Infection (Definition)

Mycobacterium tuberculosis is an infectious organism that spreads by droplets coughed out by an infected person. Infection is established initially in lungs, but can spread within lungs & to other body parts, or can become latent, with reactivation occurring years to decades later. With effective treatment, it can be completely eliminated although drug resistant ...Read more


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What forms of tuberculosis are contagious?

What forms of tuberculosis are contagious?

Contagious: TB Disease from the lung/ larynx can be transmitted. Latent TB Infection is not contagious in that state. ...Read more

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Is spinal tuberculosis contagious can relative persons like kids and wife effected from?

Is spinal tuberculosis contagious can relative persons like kids and wife effected from?

Portal of entry: Pot's disease of the spine is enclosed and unless the area is opened for treatment and drainage, then that area is not contagious. The problem is the usual source is TB of the lungs and this is the source of spreading the disease especially to close contacts due to coughing and secretions. ...Read more

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What are the causes of tuberculosis? How contagious is TB and can breathing clean air help?

Complicated question: Tb is mycobacterium tuberculosis. There are more than sever related mycobacterium species though. It is contagious..Very in fact if you have active pulmonary disease. Other forms are less infective or pose no threat transmit at all like bone infection (pott's puffy tumor). Can breathing clean air help..Well..It won't hurt. Thats what the TB sanitariums of the 16-20th centuries were doing. ...Read more

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What do you suggest if my girlfriend has a "minimal tuberculosis". she's worried if I'm infected, is it contagious?

What do you suggest if my girlfriend has a "minimal tuberculosis". she's worried if I'm infected, is it contagious?

TB: yes TB is contagious but not highly contagious. If she really has TB that is active though you should go to the health department to be checked for free. ...Read more

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Is lymph node tuberculosis contagious? And is it hard to cure?

Scrofula: Scrofula, or TB lymphadenitis, is not contagious. However, anyone with this diagnosis should also have additional medical workup to be sure there is no pulmonary TB (infection in the lungs) which is contagious. TB lymphadenitis is quite treatable, but it is important that tissue from the lymph nodes is sent for culture and susceptibility testing to be sure standard treatment is appropriate. ...Read more

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Need to know is tuberculosis contagious or is it the bacteria?

Need to know is tuberculosis contagious or is it the bacteria?

Yes.: Tuberculosis is caused by an infection with a bacteria called Mycobacterium tuberculosis. This bacteria can infect the lungs and other body sites. Tuberculosis is definitely contagious and can be spread from person to person. Tuberculosis can be a serious health problem and can require many months of therapy with multiple antibiotics to cure. Hope that this helps. ...Read more

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Two relatives of mine are coming from India to Canada live permanently with me, could they carry infectious diseases like ebola or tuberculosis?

Two relatives of mine are coming from India to Canada live permanently with me, could they carry infectious diseases like ebola or tuberculosis?

Ebola-no, TB-check: Ebola is very doubtful unless there is recent travel to Africa. TB is something they should be tested for and cleared prior to travel if concern is there. ...Read more

Dr. Klaus D Lessnau
1,183 doctors shared insights

Tuberculosis (Definition)

Is an infection in the body with mycobacterium tuberculosis. It is almost always acquired via the respiratory tract from which it can spread to other organs. After that, the immune system walls the bacteria off. All of this usually occurs without symptoms. After that, activation of the infection can occur in about 10% of the total patients. Half of this risk is in ...Read more


Contagious (Definition)

One is able to transmit an infection to another by ...Read more