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Diarrhoeal disease is one of the main public health problems, although recent findings show that deaths due to diarrhoea among children less than 5 years decreased by 34· 3% between 2005 and 2015 and decreased by 20· 8% among people of all ages. 1 Diarrhoea still remains an important preventable burden of disease, especially in south Asia and sub-Saharan

Africa. 1 About 94% of the diarrhoeal diseases burden is attributed to the environment and linked with risk factors such as unsafe drinkingwater and poor sanitation. 2 The most of diarrhoeal diseases can be prevented by use of rotavirus vaccine along with the implementation of water, sanitation and hygiene (WASH) programmes, usually known as the five ‘‘F’’(fluids, fields, flies, fingers and food). 3, 4 Previous studies conducted on the effect of rotavirus vaccines have shown an excellent protection against diarrhoea mortality. 3 Rotavirus vaccines have the highest efficacy against severe rotavirus disease, rather than mild diarrhoea. The rotavirus vaccine known as ‘Rotarix’was included in the routine vaccination calendar in all health units across Cameroon on April 1, 2014 and is administered orally free of charge in two does, the first at 6-12 weeks of age and the 2nd dose from the 10-24 weeks of age to reduced childhood diarrhoea morbidity.