In Thailand, hand, foot, and mouth disease (HFMD) is
usually caused by enterovirus 71 or coxsackievirus A16.
To determine the cause of a large outbreak of HFMD in
Thailand during June–August 2012, we examined patient
specimens. Coxsackievirus A6 was the causative agent. To
improve prevention and control, causes of HFMD should
be monitored