EVOLUTION OF THE HEMOGRAM IN ADULT DOGS A S A FUNCTION OF TIME FROM THE ONSET OF ACUTE SPONTANEOUS BABESIOSIS

Hemograms have been performed in 48 adult dogs with acute spontaneous babesiosis (Babesia canis). Comparison have been made according to the date of onset of the disease. In dogs examinated during the first 24 hours, marked thrombopenia, eosinopenia and lymphopenia were observed and blood infection was often severe. In dogs examinated later, thromb openia and eosinopenia persisted. Lymphocytes and monocytes counts wer e normal or increased; some modified cells were observed : lymphocytes with azurophilic granulations or with hyperbasophilic cytoplasm and m acrophages. A regenerative anemia was often observed and blood infecti on had decreased. The duration of evolution of the disease can be eval uated according the hematological modifications observed.