Polyparasitism of Rhabditis Axei and Enterobius Vermicularis in a Child from Beijing, China.

BACKGROUND: Rhabditis (Rhabditellae) axei is a common species in soil, which has been reported repeatedly in human urine and the digestive system. Humans exposed to sewage or mistakenly polluted sewage is the cause of larvae infecting the digestive tract or via the urethra. We reported a patient infected with Rhabditis axei and Enterobius Vermicularis. The migration of the nematodes caused true signs of hematuria, diarrhea, and high eosinophilia.

METHODS: Stool and urine are collected to detect parasite eggs and genotype. Specimens are sent for polymerase chain reaction (PCR)-based species identification. Amplification of the 18S ribosomal RNA gene was performed by PCR as described [1].

RESULTS: Morphological features and PCR amplification of the 18S ribosomal RNA gene confirmed Rhabditis axei and Enterobius vermicularis as the pathogen of infection.

CONCLUSIONS: Herein, we presented a case that confirmed Rhabditis axei and Enterobius vermicularis infection in humans can be associated with high eosinophilia.