First Molecular Evidence of Theileria Lestoquardi in Small Ruminants in Northern Iran

2021 ◽  
Author(s):  
Seyed Mousa Motavalli Haghi ◽  
Mahdi Fakhar ◽  
Mitra Sharbatkhori ◽  
Abdol Sattar Paghe
Keyword(s):  
Staining Method ◽  
Small Ruminants ◽  
Molecular Study ◽  
Common Species ◽  
Giemsa Staining ◽  
Molecular Evidence ◽  
Northern Iran ◽  
Theileria Lestoquardi ◽  
High Prevalence ◽  
Peripheral Blood Smears

Abstract 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 are stained by the Giemsa staining method. As well as for species identification, all samples were examined by molecular method. From 220 samples, 160 and 60 were sheep and goat, respectively. By the Giemsa staining method, Theileria parasite was observed in 20 (9%) samples. But by polymerase chain reaction (PCR) method, 30 (13.6%) samples were positive for Theileria species. Theileria lestoquardi was the most common species found in these animals. The high prevalence of theileriosis in small ruminants demonstrates the emergence of ovine theileriosis in Mazandaran and Golestan provinces in northern Iran.

scholarly journals Identification of Theileria Species in Sheep and Vector Ticks Using PCR Method in Zabol, Eastern Iran

2019 ◽  
Author(s):  
Fateme Zarei ◽  
Maryam Ganjali ◽  
Reza Nabavi
Keyword(s):  
Molecular Study ◽  
Epidemiological Studies ◽  
Pcr Analysis ◽  
Blood Samples ◽  
Control Programs ◽  
Theileria Lestoquardi ◽  
Eastern Iran ◽  
High Prevalence ◽  
Rhipicephalus Bursa ◽  
Pcr Method

Background: Theileria is a protozoal parasite that belongs to the phylum Apicomplexa. Theileriosis is an important tick-borne disease caused by various species of Theileria. Among these species, T. lestoquardi (T. hirci) is highly pathogenic, while other species such as T. ovis make Subclinical and mild infections in small ruminant. Therefore, the precise identification of the species and the vector ticks are very essential for epidemiological studies and the design of control programs. Methods: This research was conducted with the aim of molecular study to identify Theileria species and vectors in Zabol, eastern Iran in 2015. The presence of Theileria in 80 blood samples and vector ticks was evaluated using PCR method. Results: Of 80 blood samples, PCR analysis showed that 50 samples (62.5%) were infected with Theileria. The eval­uation of the first phase PCR with Nested PCR showed that infections with Theileria ovis and Theileria lestoquardi were 67.45% and 32.55% cases respectively. Overall, 110 ticks (78 males and 32 females) were collected and generally two genera and six spe­cies including Rhipicephalus bursa (9.1%), Rh. sanguineus (29.1%), Rh. turanicus (10.9%) Hyalomma asiati­cum asiati­cum (23.63%), Hy. excavatum (10.9%), Hy. anatolicum (16.37%) were detected. After evaluating ticks infection by PCR method, three species of Rh. turanicus, Rh. sanguineus and Hy. asiaticum asiaticum, were infected. Conclusion: Theileria ovis has a high prevalence among the sheep of zabol and Hy. asiaticum asiaticum, Rh. sanguineus and Rh. turanicus may be the main vectors of Theileria species in this area.

scholarly journals Phylogenetic study of Theileria ovis and Theileria lestoquardi in sheep from Egypt: Molecular evidence and genetic characterization

2021 ◽  
Vol 14 (3) ◽  
pp. 634-639
Author(s):  
Amira Adel Al-Hosary ◽  
Ahmed ElSify ◽  
Akram A. Salama ◽  
Mohamed Nayel ◽  
Ahmed Elkhtam ◽  
...  
Keyword(s):  
Genetic Characterization ◽  
Small Ruminants ◽  
Rrna Genes ◽  
Effective Control ◽  
Phylogenetic Study ◽  
Local Alignment ◽  
Molecular Evidence ◽  
Blood Samples ◽  
Theileria Lestoquardi ◽  
Theileria Spp

Background and Aim: Ovine theileriosis caused by Theileria ovis and Theileria lestoquardi is an important infectious disease affecting small ruminants in regions of the tropic and subtropic zones. There is limited studies about ovine theileriosis in Egypt; so the present study aims to assess the occurrence of ovine theileriosis in Egypt at the molecular level. Materials and Methods: Blood samples were collected from 115 randomly selected sheep, which were apparently healthy; the ages of the sampled sheep ranged from 1 to 5 years old, from a local breed (barkae and balade), and showed no symptoms indicating infection with Theileria spp. The study was conducted in three governorates representing Lower Egypt (Menoufia and Beheira) and Upper Egypt (El-Wady El-Geded). All blood samples were subjected to polymerase chain reaction (PCR) and semi-nested PCR to target Theileria spp. 18S rRNA genes. Positive samples were sequenced, and these sequences were analyzed using nucleotide basic local alignment search tool (BLAST). Results: Six animals (5.22%) were PCR-positive carriers for ovine theileriosis. Nucleotide BLAST and phylogenetic analyses of the six obtained sequences showed that T. ovis was present in five animals (4.37%) in Menoufia (n=2) and El-Wady El-Geded (n=3), whereas T. lestoquardi was detected in 1 animal (0.87%) in El-Wady El-Geded. Conclusion: This study is the first to provide molecular evidence, genetic characterization, and phylogenetic analysis of ovine Theileria spp. in Egypt. Specifically, T. lestoquardi and T. ovis carrier statuses of sheep were confirmed. These results highlight the importance of developing an effective control strategy against ovine theileriosis carriers that might develop and/or spread theileriosis.

scholarly journals High Prevalence of 5T4/Trophoblast Glycoprotein in Soft Tissue Sarcomas

Cancers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 4841
Author(s):  
Patrick Groothuis ◽  
Nicola Penel ◽  
Antoine Italiano ◽  
Nuria Kotecki ◽  
Fred Dijcks ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Tumor Tissue ◽  
Staining Method ◽  
Soft Tissue Sarcomas ◽  
Tissue Microarrays ◽  
Histological Subtypes ◽  
Scoring Method ◽  
Drug Conjugates ◽  
High Prevalence ◽  
Quantitative Scoring

The expression of 5T4/trophoblast glycoprotein was evaluated in several histological subtypes of soft tissue sarcoma (STS) to determine whether the prevalence and level of expression of this membrane-associated glycoprotein is sufficient for use in targeted therapies. Tumor tissue microarrays containing cores from different histological subtypes of STS were stained using a standardized immunohistochemical staining method to detect 5T4; the level of staining was assessed using a semi-quantitative scoring method. No 5T4 staining was seen in the angiosarcomas and liposarcomas investigated in this study. 5T4 staining in the other STS subtypes was seen in more than 50% of cases, warranting further investigation into whether this antigen could evoke an anti-tumor immune response or can be used as target for the delivery of more potent toxins through antibody drug conjugates.

Investigation of Transmissible Venereal Tumor in Male Dogs by Cytological Examination

2020 ◽  
Author(s):  
C. Cagri Cingi ◽  
Deniz Yeni ◽  
Ebubekir Yazici ◽  
Tugba Akbas Cine ◽  
Mehmet Ucar
Keyword(s):  
Tumor Cells ◽  
Staining Method ◽  
Early Time ◽  
Clinical Findings ◽  
Giemsa Staining ◽  
Caudal Part ◽  
Cytological Examination ◽  
Tumor Mass ◽  
Intermediate Density

Transmissible Venereal Tumor (TVT) is one of the most uncontrolled spreading tumor via mating between dogs observed in both sexes. The clinical findings are less remarkable and are usually located in the caudal part of the penis and may include preputial discharge, licking of the region, dysuria, phimosis or paraphimosis (occasionally). In this study, the incidence of TVT and the relations of tumor with some factors were investigated in 145 male dogs, in Eskiºehir, Turkey. TVT’s diagnosis was based on location of the tumor mass and mainly exfoliative cytological findings. Smears of caudal part of the penis were painted with Giemsa staining method. The cells in the smears were identified as typical transmissible venereal tumor cells, polymorphnuclear leukocytes (PMN), erythrocyte, parabasal, intermediate, nucleated and anuclear superficial cells. In exfoliative cytological examinations, TVT cells were observed in the smears of 17 dogs (11,72 %), but only four of them (2,76 %) had TVT lesions clinically. Thirteen (8,97 %) of dogs had TVT cells but not having TVT lesions . It was found that the ages, weights and breeds of dogs had no effect on the TVT lesions and TVT cells. TVT positive animals were determined to have more erythrocyte and intermediate density than negatives and no association with other cells were found. PMNs were significantly different and high in the TVT cell positive cases compared to the negatives. In dogs with negative TVT cells, parabasal, intermediate, nuclear/anuclear superficial cells were more than those positives. As a result, the male dogs having no lesions could be infected with TVT. Dogs should be examined not only clinically, but also cytologically, to determine whether TVT cells are present. This method can be an easy way to find and treat TVT lesion-free but infected dogs at an early time.

scholarly journals Serological Evidence of Influenza D Virus Circulation Among Cattle and Small Ruminants in France

Viruses ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 516 ◽  
Author(s):  
Justine Oliva ◽  
Amit Eichenbaum ◽  
Jade Belin ◽  
Maria Gaudino ◽  
Jean Guillotin ◽  
...  
Keyword(s):  
Respiratory Disease ◽  
Bovine Respiratory Disease ◽  
Small Ruminants ◽  
Serological Evidence ◽  
Disease Complex ◽  
High Prevalence ◽  
Bovine Respiratory Disease Complex ◽  
The Usa

Influenza D virus (IDV) has first been identified in 2011 in the USA and was shown to mainly circulate in cattle. While IDV is associated with mild respiratory signs, its prevalence is still unknown. In the present study we show that IDV has been circulating throughout France in cattle and small ruminants, with 47.2% and 1.5% seropositivity, respectively. The high prevalence and moderate pathogenicity of IDV in cattle suggest that it may play an initiating role in the bovine respiratory disease complex.

Toxoplasmosis among cancer patients undergoing chemotherapy: a population study based on the serological, molecular and epidemiological aspects

2020 ◽  
Author(s):  
Seyed Abdollah Hosseini ◽  
Mehdi Sharif ◽  
Shahabeddin Sarvi ◽  
Ghasem Janbabai ◽  
Shahrbanoo Keihanian ◽  
...  
Keyword(s):  
Cancer Patients ◽  
Fragment Length Polymorphism ◽  
Type I ◽  
Type Ii ◽  
Genotype 1 ◽  
Serum Samples ◽  
Northern Iran ◽  
Patients With Cancer ◽  
Genotype 2 ◽  
High Prevalence

Abstract Background Toxoplasmosis is highly prevalent in northern Iran and immunocompromised individuals are more susceptible to this infection. The present study aimed to determine the seroprevalence, parasitism and genetic diversity of Toxoplasma gondii among patients with cancer undergoing chemotherapy in northern Iran. Methods A total of 350 serum samples obtained from cancer patients were collected from laboratory centers in northern Iran. Immunodiagnosis and DNA detection were accomplished by ELISA and PCR. Thereafter, multiplex-nested PCR-restriction fragment length polymorphism was used for the genotyping of T. gondii. Results In general, out of 350 patients, 264 (75.4%) and 9 (2.57%) cases were positive for anti-T. gondii IgG and IgM, respectively. Moreover, 19 (5.43%) samples contained T. gondii DNA. From 19 positive samples, 10 high-quality samples with sharp and non-smear bands were selected to determine the genotypes of T. gondii. Accordingly, the samples were classified as genotype #1 (type II clonal; n=4, 40%), genotype #2 (type III clonal; n=3, 30%), genotype #10 (type I clonal; n=2, 20%) and genotype #27 (type I variant; n=1, 10%). Conclusions As evidenced by the results, due to the high prevalence of T. gondii, cancer patients in northern Iran are at serious risk of severe toxoplasmosis and its complications. Therefore, oncologists need to regard this critical health problem as a matter requiring urgent attention.

scholarly journals Prevalence of Haemonchus contortus Infections in Sheep and Goats in Nyagatare District, Rwanda

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Borden Mushonga ◽  
Dismas Habumugisha ◽  
Erick Kandiwa ◽  
Oscar Madzingira ◽  
Alaster Samkange ◽  
...  
Keyword(s):  
Haemonchus Contortus ◽  
Small Ruminants ◽  
Young Male ◽  
Young Female ◽  
Gastrointestinal Parasites ◽  
Selective Treatment ◽  
Sheep And Goats ◽  
Viable Solution ◽  
High Prevalence ◽  
Mcmaster Method

This study investigated the overall prevalence of Haemonchus contortus infection in sheep and goats from five purposively selected subdivisions (sectors) of Nyagatare district from January to December 2014, after a high prevalence of gastrointestinal parasites and generalized poor productivity was reported in small ruminants in some districts of Rwanda. Faecal egg counts (FEC) were performed using the Modified Wisconsin Sugar Floatation method and the Fluorescent-labeled peanut-lectin agglutination test while enumerations, as log (FEC), were done using the modified McMaster method. The overall prevalence of H. contortus infection in sheep and goats was 75.7% (n=949). The overall prevalence of H. contortus infection in sheep (83.4%, n=314) was higher than in goats (71.8%, n=635) (Odds Ratio [OR] 1.98, 95% Confidence Interval [CI]: 1.40-2.79, and p≤0.001). The prevalence of H. contortus infection in female goats (74.2%) was higher than in male goats (64.3%) (OR 1.60, 95% CI: 1.09-2.36, and p=0.01). The prevalence of H. contortus infection in goats from Nyagatare was higher than in goats from Matimba (OR 3.25, 95% CI: 1.76-5.99, and p≤0.001) and from Katabagemu (OR 3.67, 95% CI: 2.04-6.59, and p≤0.001). The prevalence of H. contortus infection in goats from Karangazi was higher than in goats from Matimba (OR 4.72, 95% CI: 2.40-9.28, and p≤0.001). The overall mean monthly log (FEC) for H. contortus in sheep and goats were highest in April (18.9±0.2 and 14.05±0.1, respectively) and October (19.25± 0.2 and 13.75±0.1, respectively). Though, overall, sheep in Nyagatare district were at greater risk of H. contortus infection and goats from Nyagatare and Karangazi sectors were paradoxically at greater risk of H. contortus infection. It was also apparent that young female goats were at greater risk of H. contortus infection than young male goats. H. contortus infection is endemic in small ruminants in Nyagatare district and possibly other districts in Rwanda. Targeted selective treatment (TST) using FAMACHA with emphasis on low-lying swampy pastures and appropriate anthelmintic drugs may be the most economically viable solution in the short term. In the long term breeding of H. contortus resistant small ruminants and strategic grazing using the concept of refugia may bring about considerable relief from H. contortus infection in Nyagatare district, in particular, and Rwanda at large.

scholarly journals Parasitological and serological studies on amoebiasis and other intestinal parasitic infections in the rural sector around Recife, Northeast Brazil

1990 ◽  
Vol 32 (6) ◽  
pp. 428-435 ◽  
Author(s):  
José Felipe Gonçalves ◽  
Masanobu Tanabe ◽  
Francisco de Paula de Melo Medeiros ◽  
Fernando José Gonçalves ◽  
Ivanize da Silva Aca ◽  
...  
Keyword(s):  
Intestinal Parasites ◽  
Strongyloides Stercoralis ◽  
Common Species ◽  
Test Tube ◽  
Enzyme Linked Immunosorbent Assay ◽  
Parasitic Infections ◽  
Intestinal Parasitic Infections ◽  
High Prevalence ◽  
Serological Studies ◽  
Diffusion Precipitation

Parasitological examinations were carried out during July to December, 1989, on 485 inhabitants of four villages in São Lourenço da Mata, 25 km northwest of Recife, Pernambuco, Brazil. Approximately 99.6% of the inhabitants were infected with at least one species of intestinal parasites. A high prevalence of Schistosoma mansoni (82.1%), hookworm (80.2%) Trichuris trichiura (69.9%), Ascaris lumbricoides (61.9%) and Entamoeba coli (36.7%) infections were demonstrated. Test tube cultivation revealed that the most common species of hookworm in this region was Necator americanus (88.4%), and also that the prevalence of Strongyloides stercoralis was 5.8%. Three hundred and thirty-four sera were serologically examined for amoebiasis by the gel diffusion precipitation test (GDP) and enzyme-linked immunosorbent assay (ELISA). No positive reaction was observed in all sera as examined by GDP, while 24 sera were positive by ELISA.

scholarly journals Sheep Brucellosis in Kuwait: A Large-Scale Serosurvey, Identification of Brucella Species and Zoonotic Significance

2020 ◽  
Vol 7 (3) ◽  
pp. 132 ◽  
Author(s):  
Yousef Al-Sherida ◽  
Adel H. El-Gohary ◽  
Amro Mohamed ◽  
Mohamed El-Diasty ◽  
Gamal Wareth ◽  
...  
Keyword(s):  
Large Scale ◽  
Small Ruminants ◽  
Health Impact ◽  
Control Measures ◽  
Economic Losses ◽  
Serum Samples ◽  
Tissue Samples ◽  
High Prevalence ◽  
History Of ◽  
Combined Action

Brucellosis is a common zoonotic disease of major concern in humans of Kuwait, and B. melitensis causes most human cases. The disease is endemic in small ruminants, cattle, and camels for decades, causing substantial economic losses in livestock production. However, a nationwide large-scale investigation of brucellosis in the small ruminant population has not been done in the past two decades. A serosurvey of sheep brucellosis in the five districts of Kuwait with most animal production farms was done between 2016 and 2019. In total, 67,054 serum samples from 233 sheep herds were collected and tested. Additionally, milk and tissue samples were collected from 46 seropositive cases for bacteriology. Thirty persons from seven seropositive farms were tested by serology. The incidence of seropositive cases was 7% in districts devoid of vaccination, while it was 4.7% in farms with history of vaccination. The serosurvey revealed that 89% of non-vaccinated herds (n = 181) were seropositive by Rose Bengal test (RBT), buffered acidified plate antigen test (BAPAT), and complement fixation test (CFT). Prevalence of 100% was reported for non-vaccinated sheep herds from Al-Wafrah and Al-Jahra districts, followed by those from Al-Salmi (88.24%), Al-Abdali (86.7%) and Kabd (75.6%). Implementation of vaccination with B. melitensis Rev.1 vaccine and test-and-slaughters in 20 herds reduced the seroprevalence to 33.3% and 25% in herds from Al-Jahra and AL-Wafrah, respectively. B. melitensis was isolated from 20 samples (43.5%). More than half of the examined animal owners (56.6%) tested positive for Brucella using RBT, BAPAT and CFT. The high numbers of infected herds and high prevalence in herdsmen are alarming. Thus, control measures have to be ensured immediately. The epidemiological situation in Kuwait is similar to those of the neighboring countries and the combined action of these states is needed. The understanding of the economic and public health impact of brucellosis in Kuwait needs to grow.

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