Silent lead exposure has many long-term consequences. Changes in tightness of control and the recent lead-related incidents in Hong Kong are described. Based on world standards, health actions by our medical profession are proposed. According to current standards, blood lead level (BLL) > 5 μg/ dL justifies providing information to families on lead hazards and on the usual sources of uptake, as well as close biological surveillance along with hygiene and dietary advice aiming at reducing contact. Sources of exposure should be investigated and avoided, particularly for children and pregnant women. In children, developmental surveillance should be performed during medical visits. A diet with less fat, good calories, replete in calcium, zinc, iron, more dietary fiber and vitamin C helps. Garlic may alleviate lead toxicity. Chelation therapy should be considered when BLL > 45 μg/dL.
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