Lead poisoning is seen as a past disease. The difficulty of recognising these patients and identifying the source is described. Surveys were done, but the standard of toxicity level has been rapidly changing. Dramatic clinical presentations were not common in Hong Kong, being often asymptomatic or missed. Legislation on lead sources was expectedly slow when only relying on collections of full evidence. The picture described in this paper on what has been in Hong Kong may give us more understanding of the present interest in drinking water contaminated with lead from smelting material used to connecting water pipes.
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