Approximately four weeks ago, an acquaintance was over at my house and ate jam directly from the jar with a spoon. Later on i noticed that he had cuts and sores on his lips. Because i have a sensitivity towards hiv i noted the fact and did not use it for approximately 4 to 5 weeks. However, the other day i forgot all about the incident and proceeded to have jam. I know this may sound stupid but i am very worried of having contracted hiv. I know that the virus cannot survive outside the body, however the jam was shut with a lid and stored in a relatively cold temperature in the refrigerator. If we take for granted that the person had hiv and a spil of blood was present in the jam, is there any possibility that it could survive a period of 4 weeks? Is there a need to get tested. Please advise as i am very worried. Thank tou