How is AIDS transmitted?

May 26, 2025 Source: Cainiu Health

Dr. Yang Ziqi

Introduction

Contact transmission is the most common way HIV is transmitted. The virus can be spread through semen, vaginal secretions, rectal fluids, and other bodily fluids during sexual activity between heterosexual or homosexual partners. 2. Bloodborne transmission HIV can be transmitted through blood. Individuals may become infected by receiving blood contaminated with the virus, or through contact with infected blood via skin wounds or other routes.

HIV is generally transmitted through sexual contact, blood transmission, and mother-to-child transmission.

1. Sexual transmission

This is the most common way HIV spreads. The virus can be transmitted through semen, vaginal secretions, rectal fluids, etc., during heterosexual or homosexual sexual activities.

2. Blood transmission

HIV can spread through blood. Individuals may become infected by receiving blood contaminated with the virus or through contact of open wounds or broken skin with blood containing the virus. Additionally, sharing contaminated injection needles, razors, toothbrushes, or other personal hygiene items may also lead to blood-borne transmission.

3. Mother-to-child transmission

Pregnant women infected with HIV may transmit the virus to their infants during childbirth, breastfeeding, or pregnancy. However, antiviral treatment can reduce this transmission risk.

HIV is not transmitted through everyday contact (such as handshakes, hugs, sharing utensils, coughing, or sneezing), nor is it transmitted through air, water, or food. To prevent transmission, avoid high-risk sexual behaviors, do not share personal hygiene items, and pregnant women should undergo HIV testing during pregnancy and take necessary preventive measures.

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HIV may achieve functional cure for certain populations within five years, though widespread eradication remains challenging. Individuals with concerns are advised to seek medical consultation in advance. Current research, including gene editing and immunotherapy, has made breakthroughs, with some clinical trials achieving long-term remission allowing patients to discontinue medication. These new therapies can precisely eliminate viral reservoirs, offering the possibility of a functional cure and potentially benefiting specific groups within the next five years.

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What conditions can kill the HIV virus?

There are several conditions that can kill the HIV virus, including high-temperature treatment, use of disinfectants, exposure to dry environments, ultraviolet irradiation, and antiviral medications. Items containing HIV can be placed in a 100°C environment for more than 20 minutes, or treated under high-pressure steam at 121°C for 15 minutes, which destroys the viral protein structure.

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Three major symptoms of HIV in men

There is no such thing as the "three symptoms of HIV in men." After men are infected with HIV, they may experience systemic symptoms during the acute phase, latent manifestations during the asymptomatic phase, immunosuppressive symptoms during the AIDS stage, mucocutaneous lesions, and abnormalities in the digestive and nervous systems. Symptoms gradually emerge as the disease progresses. If someone has engaged in high-risk behaviors and develops related symptoms, or suspects infection, medical evaluation is recommended.

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What percentage should adherence to antiviral medication for HIV treatment achieve?

Adherence to antiviral therapy for HIV must reach over 95%, which is a critical requirement for suppressing viral replication and controlling disease progression; falling below this level significantly compromises treatment effectiveness. If long-term adherence is inadequate or adverse drug reactions occur, prompt medical consultation is recommended to adjust the treatment regimen. This level of adherence means missing no more than 1–2 doses per month.

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What are the early physical symptoms of AIDS?

In general, the early stage of AIDS is the acute phase following viral invasion of the body, and common physical symptoms include persistent low-grade fever, swollen lymph nodes, skin rash, gastrointestinal discomfort, and sore throat. Early symptoms of AIDS are nonspecific and can easily be mistaken for a cold or common infection. Individuals with a history of high-risk behaviors who experience these symptoms should promptly undergo HIV antibody testing.

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What are the oral mucosal manifestations of AIDS?

In general, due to impaired immune function, HIV/AIDS patients are prone to various oral mucosal lesions. Common manifestations include oral candidiasis, hairy leukoplakia of the tongue, recurrent herpes outbreaks, linear gingival erythema, and persistent oral ulcers. These oral symptoms are often early signs of AIDS, and individuals with high-risk behaviors should be vigilant.

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What should be done for long-term low-grade fever in AIDS patients?

In general, the main approaches to managing long-term low-grade fever in HIV patients include adequate rest, physical cooling, medication, nutritional support, and screening for complications. Additionally, patients must strictly follow medical advice regarding medication use and should not discontinue or adjust dosages on their own, especially antiviral drugs, which must be taken at regular times and correct doses to prevent drug resistance. Regular monitoring of viral load and immune function is also necessary.

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What should I do about swollen lymph nodes in the neck due to AIDS?

In general, the management of neck lymph node enlargement in AIDS patients mainly includes supportive care, antiviral therapy, anti-infective treatment, traditional Chinese medicine, and immunomodulatory therapy. In addition, patients must strictly follow medical advice regarding medication and should not adjust dosages or discontinue treatment on their own. Regular follow-up tests for viral load, CD4 cell count, and lymph node status are necessary, along with proper personal protection to prevent transmission to others.

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