168
HONG KONG ANNUAL REPORT
with in Industry have been silicosis and lead poisoning, but fortunately cases have been few. Dermatitis occurs in a large number of local industries. Strict precautions are taken against injury from radiation in trades where X-rays or radioactive substances are used, and so far no signs of ill health due to this cause have been detected.
First aid classes were organized for factory workers, and advice given on first aid and medical equipment in factories. Mental Health. The Child Guidance Centre maintained by the University of Hong Kong's Department of Educa- tion increased both the scope and volume of its work in October 1957.
Health Education. This work continued to form an increasingly important part of all sections of the Health Divisions of the Medical Department.
The Maternal and Child Health Centres have continued to conduct particularly active Health Education programmes with the help of the 21 Health Visitors on their staff. Attendances at talks, demonstrations, group discussions, etc., held at centres during the year numbered 274,087 and a total of 38,638 individual home visits were made by Health Visitors and Health Nurses. The School Health Service, the Tuberculosis Service and the Social Hygiene Service also carried out considerable health propaganda campaigns in their own fields of interest.
Immunization campaigns against smallpox, typhoid fever and diphtheria were carried out in the year at appropriate seasons. Good results followed propaganda given out by loudspeaker motor vans attached to mobile vaccinating teams and the distribution of handbills by Health Inspectors of the Urban Services Department during their routine house inspections.
A series of broadcast talks on general health topics by a 'radio doctor' was commenced in October over the Chinese