1- It is a virus, so it is almost impossible to vaccinate. A virus is not the same thing as a bacterial infection. Viruses can mutate.
2- The money is being spent on developing antiviral treatments, to treat the millions of people living with HIV/AIDS. These medications are expensive, on their own.
3- Vaccine research is also expensive, and some political extremists believe that whomever gets HIV must deserve to have it, based on them being sexually active or using drugs. This makes getting funding for these research programs very difficult.
4- The best vaccination against HIV is (from a common sense perspective) getting yourself and your partner tested before having sex with them, using condoms for a year, and then getting re-tested, and remaining in a monogamous relationship the entire time you are sexually active. I suggest getting tested annually, or every couple of years, even for married people. It just kinda helps with fidelity, because it keeps you accountable. Also, say no to drugs. Don't even smoke pot. Some people smoke pot out of metal pipes called one-hitters, and these can cause blistering of the mouth and cause infection to spread. It is more common for it to spread via crack pipes, and heroin needles, but people seem to discount the dangers involved with sharing some metal or marble pipes that are used in smoking pot, also.
The HIV virus has proven difficult to fight for a number of reasons. One of them is the fact that the virus mutates quickly. That means that the virus changes at the genetic level, making finding a vaccine that works for all variants of the virus difficult if not impossible, thus far.
Part of the problem in developing an effective vaccine so far has been the issue of mutation. The HIV virus mutates, or changes, rapidly. What this means for vaccine research and development is that as we are studying the virus and figuring out what will be effective against it, it changes, making whatever we have so far come up with ineffective.
As of now, there is no widely available vaccine for AIDS. However, ongoing research is being conducted to develop an effective vaccine to prevent HIV infection.
There is no vaccine for HIV at this time.
No; there is no vaccine for HIV.
Scientists and researchers have been searching for an effective HIV vaccine for many years. Because of HIV's ability to mutate so rapidly however, it has been difficult to develop an effective vaccine. Studies continue, but increasingly the opinion is that an effective vaccine is still many years away. But even when there is an effective HIV vaccine, it will not mean that there is a cure for HIV. A vaccine will help to keep uninfected people uninfected but will not directly benefit people who are already living with HIV/AIDS. The ongoing advances in HIV treatment are increasingly becoming what could be considered to be a "cure" for people living with HIV/AIDS. These medications, when taken as directed, can help diminish the impact that HIV has on the body and allow people living with HIV to live long and productive lives.
There is no commercially available HIV vaccine as of 2014.
HIV is a RNA virus, which means it goes through lots of mutations. A vaccine depends on some of the same immune responses produced by natural infection to create a "memory" of the virus. For HIV, this is particularly hard because the immune system cannot create broad enough antibodies; an antibody created for one HIV virus might not work for another HIV virus, which most likely would have evolved. Thus, our killer T cells cannot recognize the HIV virus many times, failing to defend our bodies against HIV.
No. Hepatitis B and HIV are two different viruses. One does not cause the other.
One challenge scientists must overcome in developing an AIDS vaccine is the high genetic diversity of HIV, which makes it difficult to create a single vaccine that can protect against all strains. Additionally, the ability of HIV to rapidly mutate and evolve also poses a hurdle in vaccine development.
HIV would be one.
There is no available vaccine for the HIV virus.