Diarrhoea is one of the leading causes of child death globally, and rotavirus is the most common cause of diarrhoea mortality. In Myanmar, the disease accounts for more than half of all diarrhoea cases. Dr Mathuram Santosham, a specialist who has spent more than 40 years working on the illness, speaks to Frontier’s Oliver Slow about the need for access to vaccinations to help prevent children from catching the illness.