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全省按东、西、南、北、中方位，随机抽取５个县、市１５个乡镇，用改良加藤法和试管滤纸培养法粪检７９５８人，查见钩虫感染者４８４６例，其感染率为６０．９％。汉族、黎族、苗族和回族人群的钩虫感染率依次为４７．８％、７５．５％、８７．３％和５４．３％。钩虫感染率随着年龄增长而升高，但７０岁以上年龄组的感染率有所下降。职业以农民的感染率７９．８％为最高。农村钩虫感染率高于城镇、墟镇、海滩地带。４２３９例钩虫幼虫鉴定结果，单纯美洲钩虫感染者占７５．１％，单纯十二指肠钩虫感染者占１．７％，两种钩虫混合感染者占２３．２％，Ｎ．ａ．∶Ａ．ｄ．＝４．３７∶１。表明海南系以美洲钩虫为主的两种钩虫混合感染流行区。
According to the east, west, south, north and middle directions of the province, 5 counties and 15 cities and townships were selected at random, and 7598 persons were checked for feces by modified Kato method and in vitro filter paper culture method, and 4846 cases of hookworm infections were found. It is 60.9%. The rates of hookworm infection among the Han, Li, Miao and Hui populations were 47.8%, 75.5%, 87.3% and 54.3%, respectively. Hookworm infection rate increased with age, but the infection rate of the age group over 70 years decreased. Occupation is highest with 79.8% of the farmers’ infection rate. The incidence of hookworm in rural areas is higher than that in towns, towns and beaches. Among the 4239 cases of hookworm larvae, 75.1% were infected with H. suis infection alone, 1.7% were infected with simple duodenal hookworms, and 23.2% were infected with both hookworms. a. : A. d. =4.37:1. This shows that the two hookworm-infested prevalent areas in Hainan are predominant.