Babesiosis is a parasitic disease caused by protozoan parasites of the genus Babesia, which belongs to the phylum Apicomplexa. While more than 100 species have been reported, only a few have been identified as causing human infections. Babesia microti and Babesia divergens have been identified in most human cases, but variants (considered different species) have been recently identified. Little is known about the occurrence of Babesia species in malaria-endemic areas where Babesia can easily be misdiagnosed as Plasmodium. A parasitic disease is a disease caused or transmitted by a parasite. ... Protozoa (in Greek protos = first and zoon = animal) are single-celled creatures with nuclei that show some characteristics usually associated with animals, most notably mobility and heterotrophy. ... Classes & subclasses Class Conoidasida Gregarinasina Coccidiasina Class Aconoidasida Haemosporasina Piroplasmasina The Apicomplexa are a large group of protozoa, characterized by the presence of an apical complex at some point in their life-cycle. ...
References
Herwaldt BL, Persing DH, Précigout EA, et al. A fatal case of babesiosis in Missouri: Identification of another piroplasm that infect humans. Ann Intern Med 1996;124:643-65.
Pershing DH, Herwaldt BL, Glaser C, et al. Infection with a Babesia-like organism in northern California. N Engl J Med 1995;332:298-303.
Babesiosis and ehrlichiosis are the most important tick-transmitted diseases of dogs in the tropics, and are a relatively common cause of morbidity and mortality in dogs in South East Asia.
Babesiosis is caused by either of the protozoal parasite Babesia gibsoni or Babesia canis vogeli, and ehrlichiosis is caused by infection with a rickettsial organism, Ehrlichia canis.
Acute haemolysis (as in the case of babesiosis) is typically associated with red plasma (haemoglobinaemia), dark urine (haemoglobinuria), a strong regenerative response by the bone marrow and a normal serum protein.
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