HIV-1: What You Should Know
HIV-1 is one of two types of the virus, along with HIV-2, circulating around the world today. HIV-1 is similar to HIV-2 in that they both cause disease in the same way. Callista Images / Getty Images But there are key differences between HIV-1 and HIV-2. Callista Images / Getty Images What Is HIV-1? HIV-1 is also far morepathogenic(able to cause disease) than HIV-2. An HIV-1 infection tends to progress faster and is linked to a highermortality rateoverall....