This depends on how your company has set up their program. At CDC we offer the vaccine to high-risk people first, then healthy people later. We would hope your company would do the same. It is reasonable to delay your vaccine to be sure that people at increased risk of complications get the first opportunity to be vaccinated. A minor illness is NOT a reason to defer the vaccine.
Influenza vaccine has no effect on blood thinners like coumadin.
In general, the same influenza viruses involve the entire country. There is only one vaccine formulation for the U.S. and the rest of the northern hemisphere. The World Health Organization may recommend a different vaccine formulation for the southern hemisphere. Thanks again to Dr. Atkinson and to all who participated.