Annals of Parasitology

The generic name Blastocystis has been proposed at least twice for different organisms for which nomenclature is governed by the International Code of Zoological Nomenclature. Blastocystis Jaekel, 1918, is a junior homonym of the generic name Blastocystis Alexeieff, 1911. We propose the following Astroblastocystis nom. nov. as a new replacement name (neonym) for Blastocystis Jaekel, 1918.

This review article provides more information about the incidence of helminths affect the gastrointestinal tracts of poultry in different countries, life cycle, clinical picture, diagnosis, and prevention and control measures of such infections. Backyard and deep litter production systems show higher helminth infections than cage system. Moreover, the incidence of helminth infection is more common in tropical countries of Africa and Asia than of European ones due to the suitability of environment and management conditions...

Nano materials are utilized to improve the performance of some pharmaceuticals and materials, as well as to lessen the collateral damage they cause. The purpose of this study was to look at the effect of silver nanoparticles (AgNPs) produced by bacteria on some trophozoites of intestinal parasites. The silver nanoparticles were synthesized using Bacillus cereus (BAgNPs) and Chromobacterium violaceum (ChAgNPs) bacteria. The AgNPs production was confirmed by several tests and techniques, such as electron microscopy...

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Primary muscular hydatidosis is an infrequent parasitic infection, caused by Echinococcus granulosus. We report 2 cases of female patients with diagnosis of primary muscular hydatidosis of the thigh. Both hail from an endemic area for hydatidosis, and had no pulmonary, hepatic, or systemic involvement. Cyst extraction was performed after the patients were given hypertonic solution, and antiparasitic treatment.

Greater cane rats (Thryonomys swinderianus) are important sources of bushmeat in southern Nigeria. Here, we collected and examined intestinal helminth parasites of these rats sold at Omagwa bushmeat market, Rivers State, Nigeria. Twelve intestinal tracts of T. swinderianus were purchased from December, 2020 to February, 2021, and transported to the laboratory for examination. Each sample was incised and its contents examined in 0.9% normal saline solution. Parasites encountered were washed in same solution, fixed in 70% ethanol and subsequently identified using taxonomical keys...

Information on the prevalence on Rickettsia spp. in free-ranging mustelids and their specific ectoparasites is scarce. However, stone martens (Martes foina), pine martens (Martes martes) and European badgers (Meles meles) are common predators in many regions of Poland. In the present study we used tissue fragments to determine Rickettsia prevalence in these carnivores by molecular biology techniques. In addition, we included a data on several species of invertebrates that commonly feed on badgers.

The World Health Organization reports that approximately 200 million people are infected with Giardia (G.) lamblia worldwide. Taking into account the emergence of resistance and the high toxicity of conventional drugs, research into new strategies to fight against G. lamblia is increasing. The aim of the study was to assess the antiprotozoal activity of 20-hydroxyecdysone in water sports athletes with giardiosis. A randomized, double-blinded, placebocontrolled clinical study was conducted. Seventy-six athletes with G...

This study aims at the identification of endo- and ectoparasites in broiler farms while assessing their prevalence in semi-open and closed rearing systems in Lebanon. Seventeen semi-open and six closed broiler farms were investigated in various Lebanese provinces between March and September 2020 and 2021. Intestinal and composite litter samples were collected and observed for morphological identification of prevalent parasites. Results notably revealed the prevalence of mites in all of the surveyed farms. Moreover, mixed mite-helminth infestation was recorded in 100% of the semi-open farms and 50% of the closed ones...

Trichomonas vaginalis is an anaerobic protozoan parasite that causes trichomonosis in human. It is one of the most common non-viral sexually transmitted infections. It has been found to be most prevalent in patients referred to sexually transmitted disease clinics. In recent years, molecular methods have been used to identify genotypes of this parasite in different parts of the world and so far 6 types of T. vaginalis have identified. The aim of this study was to investigate the prevalence and genotype identification of T...

Leishmaniosis encompasses a group of diseases that is transmitted by sand flies and caused by different species of Leishmania. The skin is the initial organ to be infected by the Leishmania in cutaneous, mucocutaneous and visceral forms of leishmaniosis. The matrix metalloproteinases (MMPs) are capable of degrading all kinds of extracellular matrix (ECM) proteins. The aim of this study was to investigate the protease activity through zymography in cell extracts and extracellular secretions of L. major, L. tropica and L...

Anthelmintic resistance against gastrointestinal nematodes especially H. contortus of sheep and goat is a global issue. To address the gravity and extension of AR in Bangladesh, genotyping of 160 adult H. contortus parasitesw ere performed to confirm benzimidazole resistance allele from different geographic zones of Bangladesh based on allele specific PCR (AS-PCR). The genotype frequencies were 9.4% for homozygous resistant (rr), 61.2% for heterozygous (rS) and 29.4% for homozygous susceptible (SS) among the selected areas...

In recent decades in Europe there has been a decline in the population of European brown hare (Lepus europaeus L.). Diseases, including parasitoses, are one of the factors considered to be the cause for the phenomenon. In this connection the aim of the present work was to update the data on the composition and distribution of endoparasites of this small mammal in Bulgaria against the background of the situation in Europe. Thirty sets of abdominal organs and forty seven faecal samples of hares from different regions of the country were investigated for presence of parasites...

Echinococcus granulosus is the etiologic agent of cystic echinococcosis. Numerous research studies have been conducted on natural scolicidal agents to inactivate protoscolices during surgery. This study was undertaken to compare the in vitro scolicidal effects of hydroalcoholic extracts of Calendula officinalis, Artemisia dracunculus, Artemisia absinthium and Ferula assafoetida. The scolicidal activities of the extracts were tested at different concentrations following incubation periods of 10, 30 and 60 min...

Previous marine biology studies found that the concentration of heavy metals in some parasites of fish such as acanthocephalans can be a proper bioindicator. Therefore, we attempted to measure five heavy metal concentrations in the tissues of the fish Gasterosteus aculeatus (G. aculeatus) and its acanthocephalan parasites, Corynosoma caspicum (C. caspicum) from the Southern Caspian Sea, northern Iran. G. aculeatus (three-spined stickleback) was collected from the south of the Caspian Sea, Mazandaran Province, northern Iran...

Ovine theileriosis as a critical agent in small ruminant production, can cause lethal infections. Different species of Theileria have been reported in various parts of the world, and each species causes different diseases in the host. This is the first molecular study to investigate the prevalence of ovine theileriosis and identify the dominant Theileria species in northern Iran. A number of 220 small ruminants, including sheep and goats, were randomly sampled from 22 flocks. Peripheral blood smears were stained by the Giemsa staining method...

Ctenodactylus gundi were captured in the southern region of Aures, Algeria from December 2015 through June 2017 to assess their ectoparasite diversity. 63.5% of the gundi had one or more ectoparasites, while 36.5% had none. Eight species of ectoparasites were identified. The most abundant taxa were species of Neotrombicula (61.5%), Trombicula (10.6%), and Caenopsylla mira (4.8%). The mean intensity for arachnids follows: Neotrombicula spp. (14.3), Trombicula spp. (10.6), and Rhipicephalus (Boophilus) annulatus (1...

The aim of the study was to determine the relationship between the body condition, and the number of parasites in the gastrointestinal tract of the tufted duck (Aythya fuligula), using the Akaike information criterion. Absolute and relative measurements of 197 ducks were taken. Liver mass was positively associated with the number of parasites in the duodenum (β = 0.5). Heart mass affected positively the number of parasites in the rectum (β = 2.3), the number of nematodes in the jejunum (β = 7...

Liver abscesses are known to be trophozoites of the amoeba parasite. They are devoured by the neutrophil cells in the liver and become large assemblies because these white cells do not eliminate the parasite and these white cells multiply. In this study, venous blood samples were taken from 61 patients have hepatic amoebosis and 61 healthy individuals as a control group. The patients attended Ghazi Al-Hariri Surgical Specialities Hospital, the Medical City, Baghdad, Iraq during the period from 15th January to 18th September 2021...

Many studies have suggested that Blastocystis parasites are pathogenic protozoan parasites and one study proposed that these parasites have contributed to anaemia in children. The primary objective of the present study was to made a comparison between healthy control subjects (group 1), Blastocystis-positive subjects (group 2), subjects with irritable bowel syndrome (IBS) who were Blastocystis-negative (group 3), and IBS patients who were Blastocystispositive (group 4) regarding the haematological indices. From each participant, blood has been collected and the complete blood count (CBC) has been measured...