Human babesiosis is a tick-borne hemoprotozoal disease, caused by an i
ntraerythrocytic protozoan called Babesia. It invades erythrocytes and
multiplies by binary fission inducing cells lysis. Clinical symptoms
art: similar to those of falciparum malaria or neuromalaria. In severe
cases, intravascular hemolysis is complicated by acute renal failure
or pulmonary edema. Death rate reaches 50 % for splenectomized, AIDS,
or immunodeficient patients. The diagnosis of babesiosis is establishe
d by spotting the intraerythrocytic organism in peripheral-blood smear
s. Severe babesiosis is treated with a combination of clindamycin and
quinine sulfate. When parasitemia is high, or with seriously ill patie
nts. plasmatic exchange can be used, In meat raising and agricultural
environment, borrelia infection may be suggested because of the possib
ility of co-infection with babesiosis, Furthermore, it should be kept
in mind that babesiosis could be transmitted by blood transfusion. Pre
vention will be improved with further information, for splenectomized
and immunodeficient patients.