Why vaccine is not all the same developed against HIV virus?
Answer:
It's nice to see a Dr. respond. The reality is that the HIV retrovirus is a sloppy copier. The approach it takes hold surrounded by your system is by attaching to white blood cells (your immune system) and inserting itself into the cell. The virus RNA later unravels and attaches itself to the RNA of the white blood cell to begin copying.
There are several factor at play here, some have already be mentioned. There are two main strains of the HIV virus surrounded by the world (that are documented), HIV-1 and HIV-2. HIV-1 is most prevalent in the U.S. while HIV-2 is more adjectives in Europe and Africa (I believe). So, as previously stated, one vaccine may not assistance everyone.
Next, the virus itself tends to mutate as it is copying. Each individuals system is slightly different than the subsequent. As an HIV infected individual stays on anti-retroviral therapy (ART) for an extended time of year of time, the virus begins to mutate. This is how drug resistant strains of the virus form. There are four (4) foremost classes of ART - Nucleotide Reverse Transcriptase Inhibitors (NRTIs), Non-Nucleotide Reverse Transcriptase Inhibitors (NNRTIs), Protease Inhibitors (PIs) and Fuzeon Inhibitors. Each attacks the virus at different stages of replication. Usually, a patient will be on a combination of two or more classes of these medication. A common (current) combo dream therapy usually consists of a NRTI and NNRTI. PIs have a movement to have more side effects and are not usually prescribed first.
Anyway, the longer you are on ART, the more predictable it is that the virus will mutate, forcing you to change combo psychiatric therapy. This mutation is a very sizeable part of why it is so difficult to create a vaccine. Each little rework the virus undergoes, resources a slightly different version of the virus exists. This multiplication of possibilities have been a serious hold-up to the creation of a single effective vaccine.
There is no big conspiracy. While it is true that PHARMA (pharmaceutical companies as a whole) love to net their money, it is highly unlikely that they would hold fund a working vaccine to the world's largest pandemic in modern history.
Todd (AIDS - positive since 2004)
why are population so stupid to spread it?
because the gov't is trying out controlled ellimination...this keeps the humans here within comfort for longer. They have the cure and will use it once it is an bygone disease or all encompassing
Developing vaccines against virus is extremely difficult. Viruses mutate constantly, including the Hiv virus...so a vaccine would be no good by the time it be developed and manufactured. That is the problem with the flu vaccine. Every year a spanking new one has to be devloped..and next they hope it will be effective against the virus that truly hits that winter. Prevention is the key. Exposure to the HIV virus is voluntary.
for like peas in a pod reason theres no cure for cancer and nil gets done around problems with the enviorment or anything else that kill us and could possibly be prevented...its a way for the administration to control the population
Too much contraversy. Lets pretend we did infact develop a vaccine. Now we need to agree on, who will test it and if it works, which country get it first, how much will it cost, how should it be distributed, how do we handle the adverse effects, etc etc...Right very soon there are probably cures for cancer, alzheimers and anything else you can cogitate of but theres alot that has to be done losing the scenes back it will ever reach the standard population.
A "virus" is a really complex thing... It depends on it's host for survival and HIV really found a great host within humans.
HIV is a stealth virus and actually go into our DNA and hides out. Our body's immune system can't attain rid of it, because everything looks "normal" on the outset.
Think about how frequent "colds" there are and how tons you may have caught surrounded by your lifetime. HIV is mutating much faster and is coming up with ways to stay alive. It's really worrisome.
It's been impossible to come up next to a vaccine. Researchers are doing everything they can to develop one.... but HIV loves human DNA, so it will take some time.
vaccine is not something trouble-free to developed because as you are developing one a new strain will exist explicitly immune to this vaccine and it will not be effective so the best style as of now is to use sheltered and proven way to not hold it and also the use of "cocktail medication" which is very expensive... jusst practice locked sex as of now is the best weapon against hiv.
The same point we still have so much cancer ( that could be cured) BIG MONEY IN IT!!!
There are tons factors as to why a vaccine against HIV is taking long. Some of them are:
1. The virus is terrifically smart and changes its form. Different parts of the world hold different subtypes of the virus. Therefore one vaccine may not work across the globe.
2. Trials on HIV vaccines are fraught near risks. Volunteers may not be subjected to these trials as easily as trials for other vaccines
3. Studies hold to go on for several years and decades formerly conclusive evidence on the vaccine's efficacy is reached.
Dr. Rajan TD., MD, DVD, DNB
Specialist contained by Skin & Sex Transmitted Diseases
Andheri West, Mumbai, India
Tel: 0091-22-66982747
Email: rajan.td@gmail.com
if there be a vaccine, it wouldn't be 100% effective (like adjectives vaccines), I'd imagine folks spreading it more since they think they are secure
companies make more money stale hiv drugs than they would off hiv vaccines
it mutates too much
Dr. Rajan is completely right. Ignore the conspiracy theorists and those paranoid just about the government. Vaccine trials enjoy been going ahead for years, but no vaccine has shown to be impressive. The wikipedia article gives a virtuous overview of the problems involved with the nouns, as well as some of the positive research that have been done.
http://en.wikipedia.org/wiki/hiv_vaccine...