3.4. Diagnosis methods
Stool tests were performed in all patients, and serology in 160 patients (89.9%). The diagnosis of strongyloidiasis was based on serology only in four patients (two travelers and two natives); 21 patients (six travelers and 15 natives) had only stool tests positive. Three cases of strongyloidiasis (all in travelers) were positive by stool tests but negative by serology. In HIV patients with strongyloidiasis, stool tests were positive for all patients; serology was also positive for all patients tested (77.8%).
Abnormal laboratory findings depending on the method of diagnosis are shown in Figure 2.