Abstract
Reports on atypical human trypanosomiasis, caused by Trypanosoma lewisi, are rare and so far a total of 19 reports on human infection with animal trypanosomes, which includes nine cases from Trypanosoma lewisi exist. Trypanosoma lewisi, a Stercorarian trypanosoma of rats, is transmitted by the fecal contamination of the wound or the bite caused by rat flea Ceratophyllus fasciatus. We report here an atypical neonatal infection of T. lewisi in a 22-day-old infant from Agra. The infant presented with a history of high fever, poor appetite, and lethargy for 3 days. The hematological parameters were normal except for a low platelet count. A high C-reactive protein (CRP) concentration of 70.49 mg/L indicated marked inflammation. The Leishman-stained thin blood smears were microscopically positive for the hemoflagellate. Based on the morphological features and further confirmed by polymerase chain reaction (PCR) assay, the hemoflagellate was identified as T. lewisi. Symptomatic treatment and antibiotic therapy helped in an uneventful recovery of the patient.
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