Best Answer: In the US, Type O positive is the most common and type AB negative is the least common. Someone else posted a wildly incorrect ration for Rh postive and negative as 50:50, but in reality it is about 85% postive and 15% negative in the US. just now. Report Abuse. The most common blood type in the US is A+ and O+ (about 40% each) and this trend continues in most of the western nations. Many Asian nations have mostly A+ and B+ and thus there are also a lot of AB+. Rh positive is generally more commonly seen than Rh negative all over the world.
If you know health insurance. not take a beating. A fee-for-service plan is what most Americans think of as traditional health insurance. The deductibles and co-pays for this type of plan are generally higher than those of a managed health care provider. These fees can add up over the course of a year, but they also buy more options.
Deductibles and co-insurances apply to certain benefits under both Parts A and B. In the fee-for-service program, a beneficiary can receive services from any licensed medical provider anywhere in the country and use any facility that is certified by Medicare.