stress is laid on the importance of determining the range and extent of antigenic variation in trypanosome material , whether with a view to the development of reliable diagnostic tests ( although quantitative estimation of igm in serum and cerebrospinal fluid is a useful diagnostic tool circumventing the difficulties caused by antigenic variation during an infection ) or for assessment of the possibility of developing antitrypanosomal vaccines .
C1514721
range
C0392762
quantitative