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Doctor insights on: Non Contagious Tb

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Tb i had my skin test - redness 40 mm i will do the chest xray tomorrow ! but am i contagious ? What are the side effects of the treatment for TB ?

Tb i had my skin test - redness 40 mm i will do the chest xray tomorrow ! but am i contagious ? What are the side effects of the treatment for TB ?

If you are: Coughing, you are able to spread the disease. They may try to culture to see for check for variants. Standard drugs are inh/ethambutol. Duration of therapy is long. Side effects not too troubling. ...Read more

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Dr. Scott Lindquist
604 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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Why would a doctor give injections to make non contagious TB contagious? This is happening to my grandma, who is in her mid-80's.

Why would a doctor give injections to make non contagious TB contagious?  This is happening to my grandma, who is in her mid-80's.

Misunderstanding?: This is not clear to me. There might have been a misunderstanding of the treatment and goal. It is best to discuss it with your grandma's doctor and ask your questions and ask for clear answers. It is best that all people involved have a clear understanding of the treatment. ...Read more

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Tb contagious if medicated?

Tb contagious if medicated?

If sputum infected: Tb remains contagious as long as you are coughing up sputum that still contains the bacteria. This can go on despite being medicated as it can weeks to months to clear the sputum. Submitting a monthly sputum sample will confirm when your sputum has cleared. ...Read more

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Is latent TB contagious?

No: Latent TB is exactly what it sounds like, latent. The body has sequestered the TB away in granulomas, and treatment is to eradicate the TB so that it doesn't pop out at a later point to cause disease. There should be no active disease with TB (or else it wouldn't be latent). ...Read more

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Is urinary TB contagious?

Is urinary TB contagious?

Depends: Tb is spread through the air from person to person when a person with TB in the lungs or throat coughs, sneezes or talks and another person breaths in the bacteria. People with urinary TB can also have TB outside of the urinary tract (i.e. The lungs or throat), which impacts their ability to infect others. Tb that is only in the urinary tract is rarely contagious. ...Read more

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Can a person with latent TB still be contagious?

No: No. People with latent TB aren't sick and they aren't coughing up TB bacteria. ...Read more

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If TB patients are on meds, are they contagious?

Tuberculosis: They can be for the first few weeks, but they generally stop being contagious after an average of 2 weeks on therapy. ...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

Dr. Klaus d Lessnau
1,204 doctors shared insights

Tuberculosis (Definition)

A potentially serious infectious bacterial disease that ...Read more


Contagious (Definition)

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