Vietnam says an outbreak of hand, foot and mouth disease has infected more than 110,000 people this year and killed 166, most of them children under 5 years old, AP reported. A Health Ministry official said Friday that the infection rate was slowing from a September peak of 3,000 per week to about 1,500 per week in December. The official spoke on condition of anonymity, citing policy. The virus typically infects up to 15,000 children per year in Vietnam, killing 20 to 30 of them. Most people recover quickly from the illness after little more than a fever and rash. The official says this year\'s figures cannot easily be compared to previous years, because the government has only collected thorough data on this disease in the past year.