X1000306-1971-72_Part01 — Page 15

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59. Case finding continued at a high level, particularly in ante-natal cases where an initial positive serology rate of 0.9 per cent was observed. Of the 212 positive cases referred from ante-natal clinics, only [71 patients, that is. 81 per cent, were actually suffering from syphilis. Contact tracing, particularly of infectious syphilis, was continued.

Leprosy

60. During the past 10 years, there has been a continuing reduction in the incidence of this disease, and the number of new cases treated in 1971 numbered 117, representing a rate of 2.9 per 100,000 of the population. Investigation disclosed that 14 patients were immigrants who had developed the disease before their arrival in Hong Kong. Tuberculoid manifestations comprised 38.4 per cent of total cases. There were 85 admissions to the Hay Ling Chau Leprosarium main- tained by the Leprosy Mission Hong Kong Auxiliary. Of these, 47 cases were infectious, and 38 cases were admitted for reconstructive surgery or treatment of ulcers.

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61. In recent years, there has been some advance in overcoming the prejudice against employment of cured leprosy patients, and to this end, much attention was paid in 1971 to the prevention of disabilities in tuberculoid cases.

Dermatology

62. The incidence of skin diseases is shown in Table 32. There was a very low incidence of skin cancers in 1971. The total number of new cases was about 5 per cent less than the previous year, but 107 per cent more than ten years ago. The types of skin diseases in 1971 were similar to that of the previous year, the six more common types being eczema. fungal infections, contact dermatitis, lichen simplex, urticaria and warts.

PORT HEALTFI (Table 34)

63. The Port Health Service in 1971 continued to fulfil its routine duties in connection with the prevention of the introduction of quarantinable communicable diseases into Hong Kong, the sanitary control of port and airport areas, the provision of facilities as required by the International Health Regulations, and a regular exchange of epidemiological information with the World Health Organization, and ports and airports in other countries.

64. With the increasing importance of Hong Kong as a tourist and an international transit centre, the work load of the Service has steadily risen in recent years. This has not only been due to the increasing number of ships entering the port, resulting in the necessity of main- taining a full 24-hour daily quarantine service, but also to a vast growth in air traffic at the Hong Kong International Airport. The Service has responsibility for port health work in connection with travelling between Macau, Kwangtung province, and Hong Kong, with particular emphasis on vessels and aircraft from plague-infected areas, and food imported from cholera-infected placeS.

DISTRICT MIDWIFERY SERVICE (Table 35)

65. Nearly all births during the year took place in institutions— either hospitals or maternity homes. Delivery in hospitals gradually increased, as all cases were carefully screened and any high-risk cases were referred to specialist units for further management. Only 18.5

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