Unvaccinated children, elderly face much higher risk of major flu complications: official

Unvaccinated children and elderly people are four to five times more likely to face serious complications or mortality from flu infections than those who receive vaccinations, a Hong Kong health official has warned, as influenza cases in the city continued to rise. Director of Health Ronald Lam Man-kin issued the warning on Saturday as he pointed out that Hong Kong’s influenza infections had been