Trypanosoma evansi: Hematologic changes in experimentally infected cats

Cet article rapporte trois cas cliniques de trypanosomose a Trypanosoma evansi (« surra ») chez des chats Koweitiens. Les symptomes, les anomalies hematologiques et les resultats du traitement sont decrits.

Trypanosoma evansi infection in three cats

Diminazene aceturate in the control of Trypanosoma evansi infection in cats.

The uniform morphology of the developmental stages of Haemogregarina species and the insufficient information supplied by the simplistic descriptions of previous authors complicates their differential diagnosis and proper species identification. In this study, we detected Haemogregarina spp. in 6 out of 22 (27·2%) examined turtles originating from Southeast Asia, Malayemys subtrijuga (n = 4), Sacalia quadriocellata (n = 1) and Platysternon megacephalum (n = 1), and compared them with the available literature data. Microscopic analysis of our isolates distinguished 2 morphological species, Haemogregarina pellegrini and one new species, being described in this paper as Haemogregarina sacaliae sp. n. Phylogenetic analyses based on 1210 bp long fragment of 18S rDNA sequences placed both haemogregarines firmly within the monophyletic Haemogregarina clade. Isolates of H. pellegrini from 2 distantly related turtle hosts, M. subtrijuga and P. megacephalum, were genetically identical. Despite the fact that numerous Haemogregarina species of turtles have been described, the incompleteness of the morphological data and relatively low host specificity provides the space for large synonymy within this taxon. Therefore, a complex approach combining microscopic analyses together with molecular-genetic methods should represent the basic standard for all taxonomic studies.

https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0031182014001930

Haemogregarines of freshwater turtles from Southeast Asia with a description of Haemogregarina sacaliae sp. n. and a redescription of Haemogregarina pellegrini Laveran and Pettit, 1910

Influence of Trypanosoma evansi in blood, plasma, and brain cholinesterase of experimentally infected cats.

Experimental infection of T. evansi in the cat.

Summary. Life histories of three new coccidian parasites (Protozoa: Apicomplexa: Coccidia) obtained from the larvae of three different coleopteran stored-grain pests, Tribolium castaneum Herbst, Alphitobius piceus Olivier and Palorus ratzeburgii Wissmann, respectively, have been described in detail. These coccidian parasites belong to the genus Adelina Hesse 1911 and are named as Adelina castana sp. n., Adelina picei sp. n. and Adelina palori sp. n. The complete life histories of these parasites are observed on the fat bodies along with the body fluid of the hosts. A comprehensive comparative account of three life histories is presented in tabular form.

https://www1.nencki.gov.pl/pdf/ap/ap3938.pdf

A. Choudhury

Papers

Experimental infection of T. evansi in the cat.

Life histories of three new coccidian parasites from three coleopteran stored-grain pests of India.

Letter: Occurrence of amastigote and sphaeromastigote stages of T. evansi in the brain tissue of the cat.

A new microfilaria from the Indian palm squirrel

Trypanosoma rotatorium (Mayer, 1843) and its experimental transmission through a Leech Vector, Helobdella nociva Harding, 1924