Indian Journal of Pathology and Microbiology
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Year : 2023  |  Volume : 66  |  Issue : 1  |  Page : 199-201

An atypical Trypanosoma lewisi infection in a 22-day-old neonate from India: An emergent zoonosis

1 Consultant Pathologist, Agra, Uttar Pradesh, India
2 Department of Pathology, Rohilkhand Medical College and Hospital, Bareilly, Uttar Pradesh, India
3 Department of Pathology, Rajshree Medical Research Institute and Hospital, Bareilly, Uttar Pradesh, India

Correspondence Address:
Vibhuti Goyal
Department of Pathology, Rohilkhand Medical College and Hospital, Bareilly - 243 006, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijpm.ijpm_449_22

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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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