The Centre for Health Protection yesterday reminded schoolchildren and their parents to be on the lookout for cases of hand, foot and mouth disease and flu when classes resume next week. The centre had received reports of 607 outbreaks of hand, foot and mouth disease in schools and homes for the elderly for the year as of Thursday. The number last year was 103. Two new cases were reported yesterday. Centre controller Dr Thomas Tsang Ho-fai said cases were expected to peak in or after October, so schools should be vigilant throughout the winter. Tsang said the summer peak in flu cases had not yet passed and expected there would be more than 10 outbreaks affecting multiple people every day after the new school term began. Tsang said the centre had alerted schools and childcare centres about the threat and told them to notify the centre in the event of any outbreak. 'If the situation in a particular school were serious, we might advise them to suspend classes,' he said. Meanwhile, a new vaccine against pneumococcal infections, which cause mild illnesses such as sinus or middle ear infections, will replace the existing PCV7 in the government's childhood immunisation programme in October. The new vaccine, PCV10, will be provided free of charge to children born after September 1, 2009.