<s>[INST] Dear Sir, I shared room with my friend for one year who was now infected by sinovial tuberculosis & HIV too...are there any chances for me to get infected by those diseases???How I can I be confirmed whether I am affected by it or not? what precautionary measures should I take if I am not to be affected in the near future?? Thanking you, sir... [/INST] Hi, dairy have gone through your question. I can understand your concern. If you have any blood to blood contact or sexual contact with HIC infected person then there is chance of infection.  Otherwise, no need to worry about that.  HIV and synovial tuberculosis can not spread by sharing room cloths or other objects.  No need to worry. Just be relaxed. For confirmation, you can go for HIV testing. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health. </s>