Theileria in blood smear

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hilltrekker
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Theileria in blood smear

Often blood smears confuse me about the presence of Theileria. Any practical tips for the differential diagnosis? 

Arvind Singh Pundir
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hilltrekker wrote:

hilltrekker wrote:

Often blood smears confuse me about the presence of Theileria. Any practical tips for the differential diagnosis? 

 
 
 
 
 
 
 
 
In live animals, theileriosis is diagnosed by the identification of schizonts in thin smears from blood, lymph node, or liver biopsies. At necropsy, schizonts may be found in impression smears from most internal organs. Piroplasms can sometimes be found in the blood of carrier animals. Polymerase chain reaction (PCR) tests and DNA probes are sometimes used to detect and identify Theileria species. Antibodies to T. parva and T. annulata can be detected with an enzyme–linked immunosorbent assay (ELISA) or an indirect fluorescent antibody test. Serologic tests may not be sensitive enough to detect all infected cattle, and cross–reactions can occur with other species of Theileria.
 refer
 www.cfsph.iastate.edu/Factsheets/pdfs/Theileriosis_theileria_parva_and_theileria_annulata.pdf