A study was carried out in Tabora region between July 1991 and Septemb
er 1991, with the aim of determining the adequacy of measles vaccine g
iven to children in Maternal Child Health clinics. Measles vaccine dos
e used per child was round to be 0.485 ml. which is about 0.385 ml whe
n wastage due to removal of air bubbles is subtracted. Workers in the
field need to be trained on the exact volume of vaccine required to be
drawn into the syringe before vaccination, to ensure that a dose meas
uring exactly 0.5 ml of vaccine is injected to a child.