HbS in nine Romanian families.

Thirty-two cases of HbS hemoglobinosis diagnosed in nine families of Romania are reported. Of these 26 were HbS trait carriers and 6 were double heterozygous presenting an association of HbS and beta-thalassemia. In the latter, one of the patients was carrier of HbS and the other had minor thalassemia with increased values of HbA2. It is stressed that the patients had a rather mild clinical form of hemolytic anemia, in spite of the very high concentration of HbS in the erythrocytes.