Haemoglobin S in Malays and Indians: association of Hb CoSp and Hb S in a Malay family.

Four cases of Hb S were seen between Jan. 1976 and June 1976; three of them were newly discovered while the fourth was previously diagnosed. Out of the four cases, two were Malays and the other Indians. The family members of one Malay case were investigated. Six members had Hb S and three had Hb CoSp. Association of Hb CoSp and Hb S was seen in two of the members. Clinically they were healthy.