2024年1月19日 · HIV-1 and HIV-2 are the two main types of HIV. Most people with HIV have HIV-1. Genetic differences between the two viruses mean that diagnosis and treatment of HIV-1 and HIV-2 can be different.

HIV-1 is the most common type of HIV and accounts for 95% of all infections, whereas HIV-2 is relatively uncommon and less infectious. HIV-2 is mainly concentrated in West Africa, is less deadly and progresses more slowly.

2024年3月29日 · HIV-1 and HIV-2 share less than half of their genetic makeup. Plus, they have different ways of working and causing harm to the body. HIV-1 and HIV-2 affect various groups of people, are diagnosed using different tests, and may require different treatments. Most people with HIV have HIV-1 infection. Who Has HIV-1 and HIV-2?

2022年9月20日 · Human immunodeficiency virus (HIV)-2 is an enveloped retrovirus causing human infection, similar to HIV-1, and is primarily endemic to West Africa. Due to globalization and increased migration, HIV-2 has now spread worldwide, with an estimated 1 to 2 million individuals affected.

2023年9月18日 · HIV-2 is mainly confined to western Africa. While HIV-2 has some of the same characteristics as HIV-1, it differs in its origin, genetic makeup, distribution, virulence, and pathogenicity (ability to cause disease). It is also less responsive to certain antiretroviral drugs used to treat HIV.

2021年3月5日 · There are two different types of HIV. These are called HIV-1 and HIV-2. Although they may have similar names, these are actually two distinct types of virus. On a genetic level, HIV-2...

2025年2月3日 · Human immunodeficiency virus (HIV) is categorized into two main types: HIV-1 and HIV-2.

2023年8月7日 · HIV-1 and HIV-2 have markedly different geographic distributions. HIV-1 is found all over the world and is responsible for 95% of infections. So, most HIV discussions are about...

There are two main types of human immunodeficiency virus -- HIV-1 and HIV-2. Both can lead to AIDS. However, they're very different from each other. HIV-1 is the most common type.

HIV-1 comprises groups M (main), O (outlier), and N (non-M or O). There are two main HIV-2 subtypes, A and B. Due to the genetic difference, HIV-1 and HIV-2 antigens are distinct enough that if a diagnostic test is developed only to detect HIV-1, it will not reliably detect HIV-2.