What is Latent TB
When
you have germs in your body but you can not spread the germs to others
due to good immune system ,you dont have any symtoms of TB in latent TB, but
the infection is still alive and can one day become active.If you’re at high
risk for re-activation -- for instance, if you have HIV, you had an infection
in the past 2 years, your chest X-ray is unusual, or your immune system is
weakened -- your doctor will give you medications to prevent active TB.
Latent TB
infection treatment:
LTBI is
the presence of Mycobacterium tuberculosis in the body without signs and
symptoms, or radiographic or bacteriologic evidence of tuberculosis (TB)
disease. Studies have demonstrated that Isoniazid (INH) taken for 6 to 9 months
in persons with LTBI reduced subsequent TB incidence by 25 to 92 per cent, the
differences in effectiveness largely explained by differences in treatment
completion. When taken as prescribed the effectiveness of therapy in reducing
the risk of progression to active TB ranges between 83 to 93% depending on the
duration of treatment (6-9 months).
What is
Active TB
An active
tb patient can spread the germs to others due to weak immune system.
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