Alright, what this thread needs is some serious science.
First, no cancer is not caused by a deficiency in fruits and vegetables. It has, however, been found that cancer doesn't respond as well as healthy cells to stress. Meat and animal products are very easy for the body to process. As such, they help us grow. Unfortunately, they also help cancer grow. Plants have built in defense mechanisms which tend to make them toxic and/or unpalatable to organisms which would harm their capacity to reproduce. However, anything that eats plants also has mechanisms for getting around those defenses, often by developing tolerance and/or ways to process said toxins. Cancer cells often lack such mechanisms. They rely on cheap and plentiful nutrients to survive. If your diet is full of nutrients which require a more complex and robust metabolic system, the cancer will starve. That is why switching to plant based diets can help so much.
Now, as for injecting HIV/AIDS into people to cure cancer. No, that's sensationalism. What they did was use a modified Lentivirus. This is a category of retroviruses of which HIV is a member. It should also be noted that a retrovirus is one which injects genetic material into and incorporates with the host cell's own genetic material. At this point, the virus is little more than a vector for those genes. What they have done is figured out a way to take your own immune cells, genetically modify them such that they confer an immunity to a ton of different cancer types, and then give them back. At that point, you're effectively a genetically modified organism. It won't change all your DNA though. Immune cells last for a very long time, and reproduce when they are exposed to the pathogen they are specific to. They can even die out if they don't get exposed to said pathogen. In this case, it's not a pathogen, it's cancer, but the principle is the same. At it's root, this is basically transgenic vaccination.
As for HIV cures, they've actually cured a handful of people with bone marrow transplants from individuals who are genetically immune to the virus. They have also managed to develop another transgenic approach whereby they modify a few muscle cells to pump out highly effective HIV antibodies. I actually think a combination of the above cancer therapy and this one could work pretty well too. It's worth a shot anyway (pun intended).
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