2021年8月26日 · HIV is a sexually transmitted infection, but it can progress to a disease called acquired immunodeficiency syndrome (AIDS) when HIV infection is untreated. Other examples …

HIV is the cause of the spectrum of disease known as HIV/AIDS. HIV is a retrovirus that primarily infects components of the human immune system such as CD4 + T cells, macrophages and …

当hiv进入人体血液时，它会追踪人体的免疫细胞(称为“ t细胞 ”或“ cd4细胞 ”)，并将自己的遗传密码注入其中。它劫持这些细胞，首先把它们变成制造更多病毒副本的工厂，然后最终杀死这些细 …

2024年2月9日 · HIV is spread through contact with genitals, such as during sex without a condom. This type of infection is called a sexually transmitted infection, also called an STI. HIV …

2024年7月22日 · Untreated HIV can progress to AIDS, often after many years. WHO now defines Advanced HIV Disease (AHD) as CD4 cell count less than 200 cells/mm3 or WHO stage 3 or …

2025年3月22日 · HIV can be prevented by practicing safer sex, including a reduction in the number of sex partners and the consistent use of condoms.People at risk of exposure can …

2023年7月26日 · AIDS is the late stage of HIV infection that occurs when the body’s immune system is badly damaged because of the virus. In the U.S., most people with HIV do not …

Stage 3: Acquired Immunodeficiency Syndrome (AIDS) The most severe stage of HIV infection. People receive an AIDS diagnosis when their CD4 cell count drops below 200 cells per …

2025年1月31日 · Sexually transmitted infections (STIs) are very common among people who are sexually active. Anyone who has sex is at risk of acquiring one, including people with HIV. STI …

2024年11月8日 · HIV is a sexually transmitted infection (STI) that may progress to AIDS, a sexually transmitted disease (STD). Learn more about the symptoms, disease progression, …