<p>more than half of the 23 million children who had not received the first dose of DTP or who were incompletely vaccinated lived in 10 countries, 4 of which were African. In Mali, about 15.66% of children aged 12-23 months were not fully vaccinated in 2018.During the same year the dropout rate between BCG -VAR1 was 16 ,10% and 27.95% in Koulikoro and Kangaba respectively. The objective was to study the missed opportunities for vaccination by mothers of children aged 0-23 months in the health area of central Kangaba in 2021</p>