A POPULATIONAL RESEARCH REGARDING THE FREQUENCY AND TRANSMISSION OF AB0 BLOOD GROUPS IN THE ROMANIAN REGION B RLAD

Part of a larger study regarding the genetic polymorphisms present in the human population of Romania, we have studied the frequency and transmission of AB0 blood groups in the B rlad region. We have investigated all the children born in B rlad (and resident in the region of birth) during a given year. AB0 blood groups were determined by the Blood Transfusion Centre of B rlad. The obtained frequencies (group 0 = 34,36% group A = 40,28%, group B = 17,46%, group AB = 7,90%) and sex ratios were concordant with previous values obtained for the romanian population. We are discussing various reasons for the slight regional differences of the AB0 blood group frequencies registered between different romanian regions. One of the most important causes of variation could be the materno-fetal incompatibility regarding AB0 blood groups. After performing a thorough family inquiry, our research proved a very limited importance of this mechanism as a generator of populational variability.