Final answer:
A negative result of the EIA or Elisa test for HIV indicates that more testing is needed to be sure if the person is infected with HIV or not.
Step-by-step explanation:
The Enzyme Immunoassay (EIA) or Elisa test for HIV is a screening test that detects the presence of antibodies against HIV in a person's blood. A negative result indicates that the person may not be infected with HIV, but more testing is needed to be sure. False-negative results can occur if a person is tested too soon after becoming infected, as it takes time for the body to produce detectable levels of antibodies.