Prologos, it is important to understand that there has been, historically, a very distinct divide in the US between two different approaches to medicine - allopathic and osteopathic.
There are 'allopathic' doctors and there are 'osteopathic' doctors.
So, when you ask the question - " how have doctor's attitudes to accept transfusions for themselves been affected by tainted blood?", it is critical to understand that you will get different responses, depending upon which kindof doctor you are speaking of.
The doctors who follow the allopathic approach to medicine, like the ones that Backformore trained with, and who do use and take blood transfusions - are the doctors who would traditionally be seen as those who founded and belong to the American Medical Association. These are the doctors that the Watchtower Society has had a long standing feud with - the AMA. These doctors understand the need to reduce the use of blood unnecessarily, but they do see blood transfusions as a life saving measure. These also are the doctors who have worked very diligently to make improvements and changes in the blood banking system such that it is now common knowlege that the risks of contracting a disease from transfused blood is very, very low. I doubt very much if an allopathically trained doctor would say no to a blood transfusion for themselves or their family. Reduction of blood transfusions - yes. Elimination of blood transfusions - absolutely not.
It is mostly within the osteopathic field of medicine that you will find bloodlesss surgery methods promoted. It is the osteopathic doctors and surgeons who mostly support, endorse, and use bloodless surgery. And, it will more than likely be from an osteopathically trained doctor that you will hear some of the quotes that the Watchtower tosses around. Because, it is in this field, that of osteopathic medicine, that you will find Jehovah's Witness doctors and surgeons. And, of course, a JW doctor says that they won't take blood.
The history of the clashes and fights and struggles between the American Medical Association and the osteopaths is long, bloody and not pretty. A person can see elements of that struggle played out in old Watchtower literature. It took much fighting before the osteopaths gained recognition as 'real' medical doctors and surgeons and there still exists controversy surrounding the credibilty and ability of ospteopathic doctors in some states. The ospteopaths do have accreditation now, but it was not always so.
http://en.wikipedia.org/wiki/Osteopathic_medicine_in_the_United_States
If you read the article I linked to in my last post, about the Watchtower Society's promotion of bloodless medicine programs in Canada (Candian health care is far different than the US and the Canadian public health care system has made it very advantageous for experimental technology to advance...behind the scenes, so to speak...), you will notice that the promotion of bloodless surgery has been done on the basis of cost saving - not health reasons and not about tainted blood. The way the Society has been able to introduce bloodless programs into public health care systems, like Canada and Australia, is by making a case that bloodless programs save money. Hence, the birth of 'blood management'.
When the Society's blood management teams 'sell' their programs to hospitals and to entire countries, they do not concern themselves very much with 'tainted blood' issues - that doesn't sell their bloodless programs - blood management does - the financial benefits of blood management is what drives the bloodless industry - not tainted blood.
Tainted blood, really, is almost a moot point in the current medical use of blood transfusions in North America.
I would be far more concerned about all that could go wrong with cell savers, etc. than I would be about contracting some disease from a blood transfusion. The cell saver and hemodilution procedures come with all the mechanical risks, and more, of an allogenic blood transfusion - the only thing that bloodless surgery procedures are able to afford protection from is disease - every other risk associated with blood transfusions exist with 'bloodless' methods.