HIV is the human immunodeficiency virus, and dried blood does not transmit the human immunodeficiency virus.
The human immunodeficiency virus requires a relatively strict living environment and can only survive and reproduce inside the human body. If the human immunodeficiency virus leaves the human body, it will die very soon.
When blood carrying HIV is dried, the HIV will also die, so dried blood will not cause the virus to spread.
Generally, dried blood does not lead to the transmission of the human immunodeficiency virus, so there is no need to be overly concerned about coming into contact with the dried blood of a person with AIDS.