Domestic experts and CDC generally believe that a window period of 3 months can rule out HIV infection, but some CDC believe that 3 months is only suitable for the general population. It is believed that: 1, the 3-month window period is suitable for those who do not have serious immunodeficiency diseases themselves and are not taking anti-HIV or partial anti-hepatitis virus and immunosuppressive drugs that affect the immune function of the body.
2, If immunosuppressive drugs are taken, it is recommended that the window period be delayed to 6 months.” There are also CDC believes that “a negative test after 3 months can almost rule out 100% of infections (except in very rare cases of severe immunodeficiency or very special cases, such as advanced tumors, leukemia, etc.).” Also the CDC believes that any drug, including hormones and immunosuppressants, has little effect on antibody production and detection, and that 3 months includes all conditions in the entire population.
Discussion: (1) Do hormones and immunosuppressants actually have an effect on antibody production and test results? (2) If so, how long does it take for the test to rule out the possibility of infection?
A: It is true that some professors have tested HIV antibodies up to 3 months, which is actually wrong. The time of HIV antibody production and appearance is influenced by many factors, not only human host differences, but also the number of HIV infections, the way of approach, the strain of the virus, etc. Doctors are advised not to instill this incorrect concept, but to refer to the national textbook “Infectious Diseases” and other relevant reference books.