A survey of abnormal hemoglobins, G6PD deficiency and hereditary ovalocytosis was carried out among the Dayaks of Sarawak. The only abnormal hemoglobin found was Hb Co Sp, which occurred in 0.35% of the Land Dayaks and 0.83% of the Sea Dayaks. G6PD deficiency occurred in 5.3% of the male Land Dayaks and 5.0% of the male Sea Dayaks; no electrophoretic variant of G6PD was found in any of the 285 Land Dayaks and 240 Sea Dayaks examined. Hereditary ovalocytosis was found in 12.7% of the Land Dayaks and 9.0% of the Sea Dayaks.
944 adenosine deaminase phenotypings of Malay, Chinese, and Indian blood donors and newborns at Kuala Lumpur, Malaysia, yielded ADA1 gene frequency estimates of 0.885 for the Malays, 0.939 for the Chinese, and 0.853 for the Indians.
Serum samples from Sinhalese subjects, from Punjab and from Singapore have been studied. The Gm phenotypes found are very numerous and we can observe some similarities concerning the Gm gene frequencies between the Singapore Indians with the Indians of North India, and with the Sinhalese. In contrast, Gm gene frequencies found among Chinese and Malays from Singapore are quite different from those found among Indians of Singapore. Our results here are very similar to those obtained in Malaya studies.