[Immunoenzymatic detection of human African trypanosomiasis using dried blood samples].

The application of the ELISA technique to dry blood samples is described with special reference to some parameters: the correspondence between the "confetti" eluate and the serum dilution, and the preservation time of the dry blood samples. A correlation is made between the results obtained with the confetti and those obtained with the sera. The study shows that the dry blood samples are a valuable tool for a large scale diagnosis of human African trypnanosomiasis during sero-epidemiological mass investigations.