can anyone(genius) explain briefly about why there is no vaccines on AIDS and MALARIA?

Answer 1

there is no a vaccine for HIV disease cause the virus destroy the immune system of the body so if we made a vaccine may be the person will get the disease inside of gaining the immunity from the disease ,if they just find how the cure this virus I'm sure they will made a vaccine
and for malaria there is avaccine used when the person decided to travel to area the disease spread there

Answer 2

It's not for the lack of trying. To sum it up in just a few words, it's been very difficult to create a vaccine for AIDS because the drugs that can kill the virus will also kill the cells in the body that we are trying to keep alive. Scientists are trying to strike a balance between killing the virus and not killing the person.

As for Malaria, it is a similar situation. Malaria is not a virus. It is caused by a parasite that lives in the blood stream and liver of it's human host. The drugs that can kill the parasite will also kill people. The cell structures are similar in the human and the parasite. We are trying to kill "eukaryotic" cells in the parasite, but eukaryotic cells are the same in both animals, and they therefore respond the same to any chemicals.

Answer 3

Nature has always kept a premium on reality, especially human challenges against it. The world humanity existence is based on certain principle which is not aware to all, and which can not be understood other than principally. Start with the point that 'Energy is controlled by emotions, irrespective of circumstances'. Energy does not born nor die, but transforms here and there in the Universe. There is always an emotion behind every consumption of the energy and again it restores to the previous stage - say, water evaporated from ocean falls by rain and flows by river and reaches the ocean - Aids and such diseases - a lot still untraced - are there without any medicines even. Same way, psychologial diseases also. How can the humanity overcome this - only way is God.

Answer 4

Malaria is a parasite, for which there is no way to vaccinate; only preventing the parasite from being able to grow in the bloodstream will prevent someone from contracting it if they are bitten by a mosquito carrying the parasite.

HIV/AIDS is more complicated; it doesn't act in the way a "normal" virus acts, so building immunity to it doesn't work either. It shuts down the very system - the immune system - that builds immunity, so there has to be a way to keep the immune system functioning while still allowing it to react to a vaccine that is made from a virus that shuts it down, and that's going to take some time.

Answer 5

In short, many HIV vaccines have been tested but none are clinically effective because the virus mutates to evade the immune response.

Malaria is caused by a protozoan parasite that evades the immune response by residing in red blood cells and the liver. As the previous answer pointed out, vaccines are being developed for both diseasses, but finding an effective vaccine is not as easy as the public percieves it to be.

Answer 6

Regarding the terms no VACCINE- Process is going on for making the same, Several team of Research Scientists are busy in that, Very soon they will be available in the market.
These diseases are not discovered since very long, and so the scientists have not yet succeeded in getting a vaccine to prevent it.
We can only prevent by few safety measures.

Answer 7

The malarial parasite exists in many different stages, in the liver as well as the red blood cell and in the mosquito. All these forms have different antigenicity. Therefore, it is difficult to make a vaccine which is effective against all these stages. Research is still going on, but a successful vaccine has still not been discovered.

Answer 8

Many viral diseases lack efficient vaccines - as I understand it this is mainly due to the rate of mutation of each virus thus rendering any developed antibodies ineffective.

Add to that... that some single diseases can be caused by more than one strain or type of virus (more opponents for the vaccine),
And ... some viruses had developed effective means of hiding from your immune system until suffient in number to overwhelm your system

AIDs and maleria might be with us for some time yet

I hope my poor explanation helps ... maybe someone more medical might clarify or add anything I've missed

Answer 9

well to start with malarial parasite has many stages in the host body i.e man& mosquito.every stage has diff. structural properties.now the parasite has also become resistant to cloroquinine.all the 4 malarial parasites can dominate a host body in groups like in p.falciparum`s case.so its dificult to develop vaccine for them.the only way is to control mosquito.
n aids well its retro virus.recent studies have shown that circumscission can lower hiv spread by wooping 30%.this is due to the fact that hiv virus attacks langhen cells in prepuce so circumscission can lower the risk.vaccine ,aids has a complex glycolipid structure and attanks cd4+ cells vaccine production is difficult as they have very complex structure in every stage of their life.study is on lets hope for the best

Answer 10

I only know of the vaccine for AIDS.
http://www.iavi.org/ is the site of the International AIDS Vaccine Initiative Group.
From their own site:
"Treatment advances have yielded important new AIDS therapies, but the cost and complexity of their use put them out of reach for most people in the countries where they are needed the most. In industrialized nations where drugs are more readily available, side effects and increased rates of viral resistance have raised concerns about their long-term use. "

So basically, it exists but like everything else its hard to get to the third world masses. Also, its still fairly experimental (unknown side effects). All medical and pharmaceutical products have to meet strict FDA regulations in the US and comprable international regulations throughout the world.