Detection of heterozygosity of microsatellite markers JS2 and PLC by PCR, from either single or 3 pooled MDA reactions on 5 FTA discs of HAT cases from the DRC. Heterozygosity was analysed both by visualisation of PCR product on ethidium bromide stained agarose gel, and by separation of FAM-labelled products on an ABI300 sequencer. Individual alleles were identified by size in bp by GENESCAN© software, and allocated an identifying number. The numbers in the table indicate the alleles identified in each case. Homozygous samples are highlighted in bold. CTC count indicates the estimation of trypanosome numbers (trypanosomes per mL) by the CTC technique.