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This article reports about the First International Congress of Parasitology, to be held by the World Federation of Parasitologists in September 1964 in Rome, Italy. The federation's meeting was held in Rome, Italy, during September 10-12th, 1962. It is reported that the Congress was open to all Parasitologists and Societies of Parasitology throughout the World and will be organized by an International Consultative Committee under the chairmanship of professor P.C.C. Garnham and by a Local Committee members.

The Gm serum groups in man have been investigated serologically and genetically. Two populations have been studied. In Great Britain the frequency of the Gm (a+) phenotype is 60.98 per cent. In the Ferrara district of Italy the frequency is 40-18 per cent. Family studies in both populations support the hypothesis that the Gm (a+) phenotype is determined by a gene which is expressed in the heterozygote. [ABSTRACT FROM AUTHOR]