An Indian pharma and biotech firm has successfully developed a vaccine for rotavirus, the fatal virus that remains responsible for severe diarrhoea among infants and young children. The vaccine has been developed by Hyderabad-based Bharat Biotech and was launched by PM Narendra Modi recently in New Delhi.

Rotavirus is predominantly reported from low- and middle-income countries in Africa and Asia. Production of cheap vaccines for this deadly virus would be a boon for many.

Here is a list of countries with the most rotavirus diarrhoea deaths, by number and percentage of global total: