Scientists are a step closer to understanding why some people with HIV develop full-blown AIDS, and others don’t.
Researchers in Massachusetts and California say that the answer lies in how the immune cells that recognize invaders are educated – a finding that may pave the way for new strategies for designing an HIV vaccine.
The human immune system detects foreign cells with the help of cell-surface proteins called human leukocyte antigens (HLAs). Each person’s cells carry a particular set of HLA molecules – the person’s HLA type – which bind fragments of …

AIDS is a killer disease, yet there are millions of people who are still unaware of its causes, symptoms and preventives. On World AIDS Day here is some relevant information for you.
What is AIDS? AIDS stands for: Acquired Immune Deficiency Syndrome
AIDS is a medical condition. A person is diagnosed with AIDS when their immune system is too weak to fight off infections.
Since AIDS was first identified in the early 1980s, an unprecedented number of people have been affected by the global AIDS epidemic. Today, there are an estimated 33.4 …