Babesia venatorumInfection in Child, China

To the Editor: Babesiosis, which is caused by intraerythrocytic sporozoites of the genus Babesia, is a tick-borne emerging zoonosis in humans. Although >100 Babesia species infect animals, only a few species, mainly B. microti and B. divergens, infect humans. Human infections with B. microti have been reported from the United States and other countries, and most human infections with B. divergens have been reported from Europe (1). Another species, B. venatorum, was found to infect humans in some countries in Europe (2,3).