HIV subtype seen in africa is?

HIV-1 and HIV-2 are two distinct viruses. Although tests which are sensitive to both types of viruses are widely available, only one antibody test currently available can specifically distinguish between antibodies to HIV-1 or HIV-2. Worldwide, the predominant virus is HIV-1. HIV-1 accounts for around 95% of all infections worldwide. HIV-2 is estimated to be more than 55% genetically distinct from HIV-1.1 The relatively uncommon HIV-2 virus is concentrated in West Africa but has been seen in other countries with links to West Africa. It is less infectious and progresses more slowly than HIV-1, resulting in fewer deaths. However, without treatment, most people living with HIV-2 will eventually progress to AIDS and die from the disease.2 3 While many commonly used antiretroviral drugs are active against HIV-2, non-nucleoside reverse transcriptase inhibitors (NNIs) like nevirapine and eirenz do not work against it. The best way to treat HIV-2 has been less clearly defined than HIV-1 Subtype D is generally only seen in Eastern and central Africa Ref Harrison20th edition pg. 987