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Dried Blood

May 29, 2002

Dear Ryan, If I had dried blood on my hands and I ate food of which, the food had touched the dried blood and I had a chapped lip at the same time. What are my risks of HIV?

Response from Mr. Kull

HIV is known to be transmitted through the following ways:

1) Vaginal, anal, and oral sex

2) Sharing injection needles, occupational exposure (blood-to-blood)

3) Mother-to-infant

If you are not engaging in these activities, you should not be concerned about HIV infection.

One of the reasons why HIV is not spread through the activity you describe is that you would be in contact with minimal amounts of fluid that have been exposed to the environment. HIV does not survive in the environment long enough to pose a risk (see Survival...).


Semen contaminated with saliva
pierced nipple exposure

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