The CDC (Centers for Disease Control and Prevention) estimate that about 1 in every 8 HIV-positive Americans is unaware of their HIV-status.
HIV blood tests and results
Diagnosis is made through a blood test that screens specifically for the virus. If the HIV virus has been found, the test result is "positive." The blood is re-tested several times before a positive result is given to the patient.
If a person has been exposed to the virus, it is crucial that they get tested as soon as possible. The earlier HIV is detected, the more likely the treatment will be successful. A home testing kit can be used as well.
After infection with HIV, it can take from 3 weeks to 6 months for the virus to show up in testing. Re-testing may be necessary. If the moment a patient was most at risk of infection was within the last 6 months, they can have the test immediately. However, the provider will urge that another test be carried out within a few weeks.
