BACKGROUND Babesiosis is an uncommon but emerging tick-borne disease caused by the genus Babesia. In this case study, we report a case of human infection with a novel Babesia sp. in China. FINDINGS The patient in question had been suffering from repetitive occurrences of mild fever of unknown origin and fatigue for 10 years. Ring forms, tetrads, and one or two dots of chromatin or trophozoite...

INTRODUCTION Babesiosis is caused by apicomplexa parasites of the genus Babesia. Humans are commonly infected by Babesia through tick bites. There is limited information available about Babesia infection of humans in China. The aim of this study was to isolate the pathogen from a patient with severe parasitemia. CASE PRESENTATION Blood samples were observed by transmission electron microscopy...