Analysis of information sources in references of the Wikipedia article "HIV vaccine development" in English language version.
Designing an effective HIV vaccine has proven immensely challenging for researchers, who've spent decades working to figure out how to prompt the immune system to protect against this wily virus, says Burton. One of the reasons it's so difficult is because the HIV virus evolves faster than any other known virus. Even within an infected individual, the virus can splinter off into many new variants, effectively dodging the immune system's first-responders — antibodies.