hello , I am in Dubai (UAE) Here in dubai everybody has to go for medical test at the time of visa renewal. they also check HIV . i gave my blood sample. I got my report after 2 days with green signal . It means i do not have any disease . I did not see the staff who was taking sample changed the niddle at my turn or not. but generally i have seen that they change the niddle after taking every sample but unfortunately i could not see at my turn. I just want to know that if she did not change the niddle and if there is HIV person before me then what is my risk ?? my report says i am ok. Please guide me.