Levels of p24 antigen increase significantly at about one to three weeks after initial infection. It is during this time frame before HIV antibody is produced when the p24 test is useful in helping to diagnose infection. About 2-8 weeks after exposure, antibodies to HIV are produced and remain detectable in response to the infection, making the HIV antibody test the most useful assay to diagnose an infection.
From the Freedomhealth point of view, using as described above the combined knowledge and experience of the team we regard the HIV DUO test as a conclusive HIV test at 28 days or beyond in almost all circumstances.
it is almost always the case that a negative HIV DUO test at 28 dyas or more will be conclusive and will not need repeating.
几乎所有的病例在28天运用4代测验或者更多天都是可断定是否感染,并且不需要更进一步的测验。
The 4th generation combined tests will shorten the time from infection to diagnosis by 1-2 weeks over the older 3rd generation HIV tests. The older 3rd generation tests are excellent and will still identify the majority of new HIV infections by 6 weeks.
Levels of p24 antigen increase significantly at about one to three weeks after initial infection. It is during this time frame before HIV antibody is produced when the p24 test is useful in helping to diagnose infection. About 2-8 weeks after exposure, antibodies to HIV are produced and remain detectable in response to the infection, making the HIV antibody test the most useful assay to diagnose an infection.