Worried Hong Kong parents who bought a popular powdered infant formula are taking their children for medical check-ups after a batch of the product was found to contain excessive levels of lead. One mother told the South China Morning Post on Tuesday that her five-month-old baby was staying in hospital for observation after the child consumed the same batch of Frisolac Prestige Stage 1 (800 grams) flagged by Macau authorities. The affected batch, numbered 1W07KPJ, is intended for infants aged up...