@васьвась ты ошибся. Читай полный абзац. То, что ты пишешь имеет отношение к блоту, а не к 4G тестам.
To investigate a possible decline in HIV antibodies associated with viral load control, researchers examined the variation over time for 65 participants who were HIV controllers who had available plasma at a second collection time point and who had a median follow-up of 3.2 years after inclusion in the cohort. Rapid screening test results were stably positive for 61 of 64 participants who were HIV controllers. The HIV enzyme immunoassays remained positive for all participants who were HIV controllers. While 92% of HIV controllers (60/65) had no change in the Western blot pattern, 3 participants lost HIV-1 antibodies, and 2 participants had 1 additional detectable antibody.
Наоборот, здесь сказано, что
The HIV enzyme immunoassays remained positive for all participants who were HIV controllers.
Таким образом:
- Всегда положительный ИФА/ИХЛА
- Всегда положительный или сомнительный блот
- Иногда ложноотрицательный экспресс-тест
- Отрицательный ПЦР РНК