Ivan Hung Fan-ngai
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Flu cases on the rise in Hong Kong as immunity wanes, expert warns
Hong Kong is experiencing a rise in seasonal influenza cases, particularly among children and the elderly, as waning vaccine protection weakens community immunity, a leading infectious disease expert has warned. Professor Ivan Hung Fan-ngai, chair professor of infectious diseases at the University of Hong Kong, issued the warning on Saturday and urged high-risk groups who have not received a seasonal flu jab to get vaccinated. The remarks came a day after health authorities said an influenza...