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Autosomal recessive diseases are common in the Arab population of Israel, mostly as a result of the high rate of consanguinity. They represent a major factor in the mortality and morbidity of the population. Since the distribution of genetic disorders in this population is not uniform, the present study was performed to determine the frequency and impact of recessive disorders within a single village. We demonstrate the existence of at least 19 autosomal recessive disorders in a village of about 8,600 inhabitants chosen at random. Since most of the disorders were chronic, the prevalence of recessive conditions in the village at the time of the study was at least 1/70, leading to a very high burden to the population and the health services., (Copyright 2000 Wiley-Liss, Inc.)