They are working on whatever their employer tells them to work on , and they aren't working on cures because working on simple life extension activities are more profitable and will not lead to the company's demise of they are successful.
Is it reasonably possible they've estimated the odds of success at pursuing some hypothetical 'cure,' vs. building on the current knowledgeable on fighting given types, and concluded the odds not just of profit but even success are much greater with the latter?
I'm curious about the vaccine angle. With vaccines against infectious disease, the usual approach is to exposure healthy people to a killed or inactivated version of a germ so the immune system can build a defense against it. Diseases prone to seriously injure or kill before that happens can sometimes be thwarted by giving the immune system a 'jump' on the disease. It's been a long time since I had cause to read about it, but IIRC, the HIV virus changes its surface, effectively keeping the body from getting a lasting handle on it. And the malaria organism can 'hide out' inside red blood cells. My point is, there are odd ball exceptions whereby infectious agents can cause chronic illness (tertiary syphilis comes to mind), but's the mainstream reality.
Cancer is composed of your own cells, and even fast-growing tumors take long enough to kill that the immune system should have time to develop a defense. There is a vaccine against human papilloma virus, a risk factor for cervical cancer.
You got me curious enough for some quick Googling; a page at Cancer.Net (disclaimer: I'm not familiar with it)
has a page on the subject. It indicates researchers
are exploring the matter.
Even if they produce an FDA-approved 'cancer vaccine,' I doubt it'll end any more of cancer. Be mindful flu shots are only effective against some strains, for example. So while a cancer vaccine might cut down risk (no small thing if we're talking lung cancer prevention in smokers, or people with high risk for hereditary cancers), it's not likely to end a disease. It's more more avenue to reduce occurrence, slow progression & maybe even occasionally cure somebody.
Mammograms are falling out of favour. As is PSA testing for men. Pap smears are far from definitive.
I see your point. Mine was those things are evidence that at least the health care industry is trying. As for pap smears, ideally you catch the dysfunction at a precancerous stage called cervical dysplasia, before it advanced to become carcinoma in situ and onward to be invasive (you're dredging up stuff from
way back in my life).
Richard.