What is the most efficient mode of HIV transmission?

May 16, 2022 Source: Cainiu Health

Dr. Jiang Weimin

Introduction

Sexual transmission: 90% of AIDS patients contract HIV through sexual contact, including homosexual, heterosexual, and bisexual intercourse. Even minor injuries caused by sexual contact or friction can allow HIV to enter the body and cause disease. The HIV concentration in semen ranges from 1 million to 10 million copies/mL—significantly higher than that in vaginal secretions.

AIDS (acquired immunodeficiency syndrome) is a highly dangerous infectious disease caused by infection with the human immunodeficiency virus (HIV). HIV is a virus that attacks the human immune system. What is the mode of transmission with the highest risk of HIV infection?

What is the mode of transmission with the highest risk of HIV infection?

Sexual transmission: Approximately 90% of people living with HIV acquire the virus through sexual contact—including heterosexual, homosexual, and bisexual intercourse. Even minor injuries caused by sexual contact or friction can allow HIV to enter the body and cause infection. The concentration of HIV in semen ranges from 1 million to 10 million copies per milliliter—significantly higher than its concentration in vaginal secretions. Practicing safe sex is an effective measure for preventing HIV transmission via sexual contact and substantially reduces the risk of infection.

If a mother is infected with HIV, she may transmit the virus to her child during pregnancy, delivery, or breastfeeding. Pregnant women living with HIV should actively seek standardized medical care and, under physician guidance, adopt antiviral interventions and other mother-to-child transmission prevention strategies. After delivery, breastfeeding should be avoided; instead, formula feeding is recommended to reduce the newborn’s risk of HIV infection.

Many people hold misconceptions about AIDS and experience excessive fear—believing that an AIDS diagnosis inevitably leads to imminent death, similar to cancer. In reality, this is not the case. It typically takes approximately 8–10 years for untreated HIV infection to progress to the AIDS stage. We hope this information has been helpful.

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