Ask an expert

26 Oct 2009

I was in close contact with a person having TB (In same car for 3 hours)
Is there any medicine thay i can take to prevent me geting TB?
Answer 393 views

01 Jan 0001

Hallo Pierre
The good news is that if you have a normal immune system, it is unlikely that you will get TB, especially as all of us in SA have had a TB vaccination (BCG) at birth. People with prolonged, frequent, or intense contact are at highest risk of becoming infected, with an estimated 22% infection rate. TB prevention is used in patients on cancer medication, with HIV or other immune disorders but normally not for healthy people. INH is used for prevention but you have to take it 6-12 months and it has unpleasant side effects. What I'll suggest is that you ask your GP to do a TB skin test on you after 3 months - you will quickly see if there are any signs of infection which you then can treat immediately.
If the person that you were in contact with, was on medication, even though he has TB, he would not have been infective if he has been taking his medication for more than a week.
Dr Bets
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical examination, diagnosis and formal advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.
Voting Booth
Have you entered our Health of the Nation survey?
Please select an option Oops! Something went wrong, please try again later.
33% - 9360 votes
67% - 19293 votes