TB

Question 0

Regarding TB, to provide the best control

Answer 0

INH prophylaxis is given to LTBI

• To prevent re-activation
  
  • to prevent secondary spread to others

Question 1

In the US, what % of individual with normal immune system and subsequently infected with M. Tuberculosis will develop active TB?

Answer 1

• 10% of all people with LTBI will develop disease at some point:
  About 5% of recently infected will develop TB disease in the first year or two after infection
  About 5% will develop disease later in life
• Remaining 90% will stay infect d, but free of disease, for the rest of their life.
• Reactivation of LTBI account for approximately 70% of cases of active TB in US.