Research Article

Effect of Phenotypic Screening of Extracts and Fractions of Erythrophleum ivorense Leaf and Stem Bark on Immature and Adult Stages of Schistosoma mansoni

Table 1

Descriptors and corresponding severity scores for the effect of extracts and fractions of E. ivorense on S. mansoni. Unless otherwise indicated, the descriptors employed are common to both somules and adults.

DescriptorSeverity score

Round1
On sides (adults: loss of ability to adhere to the well surface)1
Uncoordinated (adults)1
Shrunk (adults)1
Dark1
Slow1
Overactive1
Immobile1
Partial death (% somules dead /well)1
Degenerate4
Dead4
Tegumental damage (adults)4

Severity score: 1 (lowest) to 4 (highest).