this report described sarcocystis-like merozoites in peripheral blood smear of a woman with mild fever, rigor and musculoskeletal pain. extracellular organisms with a pale blue cytoplasm and one or two nuclei were seen in her blood smear stained with giemsa. sarcocystis-like can be considered as a possible cause of some idiopathic febrile diseases.

Blood stage malaria parasites causing a mild and self limited infection in mice have been obtained with either radiation or chemical mutagenesis showing the possibility of developing an attenuated malaria vaccine. Targeted disruption of plasmepsin-4 (pm4) or the merozoite surface protein-7 (msp7) genes also induces a virulence-attenuated phenotype in terms of absence of experimental cerebral ma...

A six months' study was conducted to determine the occurrence of blood parasites in donors Eku and Abraka, Delta State. Random sampling adopted for samples collection alongside socio-demographic characteristics. Laboratory analysis using thick thin films were carried out on samples. The result showed that 59(29.5%) positive parasites; 46(23.0%) Plasmodium, 5(5.0%) Trypanosoma, 8(4.0%) microfila...

Microscopic examination of Giemsa-stained thin blood smears remains the gold standard method used to quantify and stage malaria parasites. However, this technique is tedious, and requires trained microscopists. We have developed a fast and simple flow cytometry method to quantify and stage, various malaria parasites in red blood cells in whole blood or in vitro cultured Plasmodium falciparum. T...

The passive transfer of specific antibodies to a naive splenectomized Saimiri sciureus monkey infected with the Palo Alto FUP/SP strain of Plasmodium falciparum resulted in the emergence of parasites resistant to the transferred antibodies. Molecular typing indicated that the original and resistant parasites were isogenic. Saimiri monkeys primed with original parasites were fully susceptible to...

Seabirds are often free from blood parasites, and a recent review suggested that phylogenetic, ecological and life-history parameters can determine the prevalence of blood parasites in seabirds. However, there is a lack of data available from many seabird groups, and a larger database is needed to understand prevalence patterns of blood parasites. We used a molecular screening approach to detec...

Ecdysteroids are steroid hormones involved in moulting and development of arthropods. Blood samples 32 individual bats eight insectivorous species were analysed for the presence ecdysteroids, using liquid chromatography mass spectrometry. Nine ecdysteroids detected. The spectrum these was similar bat which take their preferred food items from same insect order. blood-borne broader autumn than s...

Introduction: In amphibians, blood may act as a hematopoietic tissue. However, the knowledge concerning hematological features is scarce, there not much information that allows an analysis about possible explanations of this physiological feature. Objective: This study aimed to evaluate relationship between immature red cells (RBCs) mitosis and presence parasites in amphibians. Methods: We samp...