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The Controller of the Centre for Health Protection (CHP) of the Department of Health, Dr Leung Ting-hung (centre), the Chairman of the National Committee for the Certification of Wild Poliovirus Eradication in Hong Kong, Professor Lau Yu-lung (left), and the Consultant Community Medicine (Communicable Disease) of the CHP, Dr Chuang Shuk-kwan (right), urge parents, travellers and the public at large to undertake immunisation to protect their children, family and the community to echo with World Immunisation Week 2015, which starts today (April 24).
 
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