Piroplasmids of livestock in Tunisia.

Several species of piroplasms of livestock are present in Tunisia; some of them are of high veterinary importance. This paper reviews the species already reported in Tunisia on the basis of clinical observations, parasitological routine diagnostic and serological surveys, as well as those considered as potentially present according to epidemiological argumentations. The genus Theileria includes four species reported in Tunisia: T. annulata, T. buffeli, T. ovis, and T. equi. The ovine malignant theileriosis agent, T. lestoquardi, appears to be absent in Tunisia. Five species belonging to the genus Babesia were reported in the country, namely B. hovis, B. bigemina, B. divergens, B. caballi, and B. ovis. Furthermore, two more species, B. major and B. motasi, are potentially present in zones where their vectors of the genus Haemaphysalis occur.