First report of cystic echinococcosis caused by Echinococcus granulosus sensu stricto/G1 in Felis catus from the Patagonian region of Argentina

2021 ◽  
Vol 120 (2) ◽  
pp. 747-750
Author(s):  
Héctor Gabriel Avila ◽  
Andrea Maglioco ◽  
María Laura Gertiser ◽  
María Paula Ferreyra ◽  
Francisco Ferrari ◽  
...  
Keyword(s):  
Echinococcus Granulosus ◽  
Cystic Echinococcosis ◽  
Sensu Stricto ◽  
Felis Catus ◽  
First Report ◽  
Echinococcus Granulosus Sensu Stricto

The first report on cystic echinococcosis in a cat caused by Echinococcus granulosus sensu stricto (G1)

2011 ◽  
Vol 86 (4) ◽  
pp. 391-394 ◽  
Author(s):  
S.V. Konyaev ◽  
T. Yanagida ◽  
M.V. Ivanov ◽  
V.V. Ruppel ◽  
Y. Sako ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Echinococcus Granulosus ◽  
Causative Agent ◽  
Cystic Echinococcosis ◽  
Abdominal Cavity ◽  
Sensu Stricto ◽  
Domestic Cat ◽  
First Report ◽  
Saint Petersburg ◽  
Echinococcus Granulosus Sensu Stricto

AbstractA case of cystic echinococcosis (CE) in a domestic cat is described from Saint Petersburg, Russia. Ultrasonography showed numerous cysts with hyperechoic walls and anechoic contents within the cat's abdominal cavity. Molecular identification based on mitochondrial DNA genes indicated that the causative agent was Echinococcus granulosus sensu stricto (G1 strain). This is the first report of CE in a cat caused by E. granulosus sensu stricto with molecular confirmation.

First report of Echinococcus granulosus sensu stricto (G1) in Nigeria, West Africa

2019 ◽  
Vol 94 ◽  
Author(s):  
J.A. Ohiolei ◽  
H.-B. Yan ◽  
L. Li ◽  
C. Isaac ◽  
B.-Q. Fu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
West Africa ◽  
Host Range ◽  
Echinococcus Granulosus ◽  
Cystic Echinococcosis ◽  
Sensu Stricto ◽  
Human Infection ◽  
Zoonotic Potential ◽  
The West ◽  
Echinococcus Granulosus Sensu Stricto

Abstract Echinococcus granulosus sensu stricto is regarded to have the highest zoonotic potential of all Echinococcus taxa. Globally, human infection due to this species constitutes over 88.44% of the total cystic echinococcosis (CE) burden. Here, we report a CE infection in a Nigerian camel caused by E. granulosus G1 genotype. To the best of our knowledge, this report is the first encounter of the G1 genotype in the West Africa sub-region where the G6 genotype is reportedly prevalent, suggesting that the epidemiology of this highly zoonotic group could have a wider host range and distribution in the sub-region, and emphasizes the need for further investigation into the genetic diversity of Echinococcus spp. in Nigeria and across the sub-region.

scholarly journals Imported hepatopulmonary echinococcosis: first report of Echinococcus granulosus sensu stricto (G1) in Bolivia

2020 ◽  
Vol 53 ◽  
Author(s):  
Daniel Jarovsky ◽  
Clarissa Rodrigues da Silva Brito ◽  
Danieli Urach Monteiro ◽  
Maria Isabel de Azevedo ◽  
Sônia de Avila Botton ◽  
...  
Keyword(s):  
Echinococcus Granulosus ◽  
Sensu Stricto ◽  
First Report ◽  
Echinococcus Granulosus Sensu Stricto

scholarly journals Cystic echinococcosis in Poland: genetic variability and the first record of Echinococcus granulosus sensu stricto (G1 genotype) in the country

2017 ◽  
Vol 116 (11) ◽  
pp. 3077-3085 ◽  
Author(s):  
Rusłan Sałamatin ◽  
Jerzy Kowal ◽  
Paweł Nosal ◽  
Sławomir Kornaś ◽  
Danuta Cielecka ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Echinococcus Granulosus ◽  
Cystic Echinococcosis ◽  
First Record ◽  
Sensu Stricto ◽  
Echinococcus Granulosus Sensu Stricto

scholarly journals Microdiversity of Echinococcus granulosus sensu stricto in Australia

Parasitology ◽  
2016 ◽  
Vol 143 (8) ◽  
pp. 1026-1033 ◽  
Author(s):  
C. A. ALVAREZ ROJAS ◽  
D. EBI ◽  
C. G. Gauci ◽  
J. P. SCHEERLINCK ◽  
M. WASSERMANN ◽  
...  
Keyword(s):  
Host Range ◽  
Cryptic Species ◽  
Host Specificity ◽  
Echinococcus Granulosus ◽  
Cystic Echinococcosis ◽  
Sensu Stricto ◽  
Echinococcus Granulosus Sensu Stricto ◽  
The World ◽  
Geographic Regions ◽  
Morphology Development

SUMMARYEchinococcus granulosus (sensu lato) is now recognized as an assemblage of cryptic species, which differ considerably in morphology, development, host specificity (including infectivity/pathogenicity for humans) and other aspects. One of these species, E. granulosus sensu stricto (s.s.), is now clearly identified as the principal agent causing cystic echinococcosis in humans. Previous studies of a small section of the cox1 and nadh1 genes identified two variants of E. granulosus s.s. to be present in Australia; however, no further work has been carried out to characterize the microdiversity of the parasite in its territory. We have analysed the sequence of the full length of the cox1 gene (1609 bp) from 37 isolates of E. granulosus from different hosts and geographic regions of Australia. The analysis shows that seven haplotypes of E. granulosus s.s. not previously described were found, together with five haplotypes known to be present in other parts of the world, including the haplotype EG01 which is widespread and present in all endemic regions. These data extend knowledge related to the geographical spread and host range of E. granulosus s.s. in a country such as Australia in which the parasite established around 200 years ago.

scholarly journals Histopathological and molecular confirmation of Porcine Cystic Echinococcosis (CE)/Hydatidosis in Nepal

1970 ◽  
Vol 32 (3) ◽  
pp. 54-58 ◽  
Author(s):  
DD Joshi ◽  
H Yamasaki
Keyword(s):  
Mitochondrial Dna ◽  
Echinococcus Granulosus ◽  
Molecular Analysis ◽  
Cystic Echinococcosis ◽  
Dna Analysis ◽  
Histopathological Examination ◽  
Sensu Stricto ◽  
Echinococcus Granulosus Sensu Stricto ◽  
Mitochondrial Dna Analysis ◽  
Sheep Strain

Introduction: Cystic echinococcosis/hydatidosis is a cyclo-anthropozoonotic disease (parasitic infestation) of herbivorous animals and human caused by larval stage of Echinococcus tapeworm, belonging to the family Taeniidae. Dogs and some wild carnivores like foxes are definitive hosts harbouring worms in their intestine while herbivorous animals and man are intermediate host. Human acts as the dead-end host of the parasite. It is known that cystic echinococcosis in humans and pigs is prevalent in Nepal. Methods: This study was carried out in Kathmandu valley pig rearing areas. Two cysts found in the pig pancreas were examined by histopathology and molecular analysis. Results: In the histopathological examination, the laminated layers of the cystic walls were strongly stained with PAS, and protoscoleces were observed in the cyst. In the present study, it was first confirmed that two hydatid cysts found in pigs were identified as Echinococcus granulosus sensu stricto (sheep strain, E. granulosus G1) by mitochondrial DNA analysis. Conclusions: Molecular analysis is indispensable not only for studying Echinococcus species associated with pathogenicity and clinical manifestation, but also for molecular epidemiology. Keywords: Echinococcosis; Echinococcus granulosus sensu stricto; sheep strain; histopathology; mitochondrial DNA analysis DOI: http://dx.doi.org/10.3126/joim.v32i3.4961 Journal of Institute of Medicine, December, 2010; 32:3 54-58

Echinococcus granulosus sensu stricto, Echinococcus ortleppi; and E. intermedius (G7) are present in Bolivia

Parasitology ◽  
2020 ◽  
Vol 147 (9) ◽  
pp. 949-956 ◽  
Author(s):  
V. Ali ◽  
E. Martinez ◽  
P. Duran ◽  
M. A. Seláez ◽  
M. Barragan ◽  
...  
Keyword(s):  
Detailed Analysis ◽  
Echinococcus Granulosus ◽  
Cystic Echinococcosis ◽  
Sensu Stricto ◽  
Control Measures ◽  
Santa Cruz ◽  
La Paz ◽  
Echinococcus Granulosus Sensu Stricto ◽  
Faecal Samples ◽  
Echinococcus Granulosus Sensu Lato

AbstractCystic echinococcosis (CE) is a zoonotic disease caused by a complex of species known as Echinococcus granulosus sensu lato. CE is endemic in Argentina, Chile, Peru, Uruguay and the South part of Brazil. In contrast, little is known regarding the presence of CE in Bolivia. In this study, 35 cysts isolated from livestock (mostly from the Department of La Paz) and 3 from humans (La Paz, Oruro and Potosi) were genetically characterized analysing the sequence of the cox1 gene (1609 bp). In total, 30 cysts (from La Paz, Cochabamba and Beni) were characterized as E. granulosus sensu stricto (3 fertile and 4 non-fertile cysts from sheep, 8 fertile and 12 non-fertile cysts from cattle and 3 fertile cysts from humans). A detailed analysis of the cox1 haplotypes of E. granulosus s.s. is included. Echinococcus ortleppi (G5) was found in 5 fertile cysts from cattle (from La Paz and Cochabamba). Echinococcus intermedius (G7) was identified in 3 fertile cysts from pigs (from Santa Cruz). Additionally, E. granulosus s.s. was detected in 4 dog faecal samples, while E. ortleppi was present in other two dog faecal samples. The implications of these preliminary results in the future implementation of control measures are discussed.

scholarly journals Response patterns in adventitial layer of Echinococcus granulosus sensu stricto cysts from naturally infected cattle and sheep

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Christian Hidalgo ◽  
Caroll Stoore ◽  
María Soledad Baquedano ◽  
Ismael Pereira ◽  
Carmen Franco ◽  
...  
Keyword(s):  
Immune Response ◽  
Echinococcus Granulosus ◽  
Cystic Echinococcosis ◽  
Direct Contact ◽  
Sensu Stricto ◽  
Response Patterns ◽  
Granulomatous Reaction ◽  
Adventitial Layer ◽  
Laminated Layer ◽  
Cattle And Sheep

AbstractCystic echinococcosis is a zoonotic disease caused by the metacestode of Echinococcus granulosus sensu lato. The disease is characterized by the development of cystic structures inside viscera of the intermediate host, mainly liver and lungs. These cysts are formed by three layers: germinal, laminated, and adventitial layer, the latter being the local host immune response. Metacestodes that develop protoscoleces, the infective stage to the definitive host, are termed fertile, whereas cysts that do not produce protoscoleces are termed non-fertile. Sheep usually harbor fertile cysts while cattle usually harbor non-fertile cysts. Adventitial layers with fibrotic resolution are associated to fertile cysts, whereas a granulomatous reaction is associated with non-fertile cysts. The aim of this study was to analyze cellular distribution in the adventitial layer of fertile and non-fertile E. granulosus sensu stricto cysts found in liver and lungs of cattle and sheep. A total of 418 cysts were analyzed, 203 from cattle (8 fertile and 195 non-fertile) and 215 from sheep (64 fertile and 151 non-fertile). Fertile cysts from cattle showed mixed patterns of response, with fibrotic resolution and presence of granulomatous response in direct contact with the laminated layer, while sheep fertile cysts always displayed fibrotic resolution next to the laminated layer. Cattle non-fertile cysts display a granulomatous reaction in direct contact with the laminated layer, whereas sheep non-fertile cysts display a granulomatous reaction, but in direct contact with the fibrotic resolution. This shows that cattle and sheep cystic echinococcosis cysts have distinct local immune response patterns, which are associated to metacestode fertility.

scholarly journals Human Cystic Echinococcosis in Lebanon: A Retrospective Study and Molecular Epidemiology

2021 ◽  
Author(s):  
Gaelle Joanny ◽  
Maria Grazia Cappai ◽  
Francesca Nonnis ◽  
Claudia Tamponi ◽  
Giorgia Dessì ◽  
...  
Keyword(s):  
Echinococcus Granulosus ◽  
Cystic Echinococcosis ◽  
Epidemiological Data ◽  
Sensu Stricto ◽  
Control Measures ◽  
Mediterranean Countries ◽  
High Gene ◽  
Human Infections ◽  
And Control ◽  
Human Cystic Echinococcosis

Abstract Purpose Human cystic echinococcosis (CE) is a zoonotic parasitic disease that constitutes a public health challenge and a socio-economic burden in endemic areas worldwide. No specific surveillance system of CE infections in humans exists in Lebanon. The incidence and trends over time have not been documented. The current study aimed to assess the demographic and epidemiologic features of human CE surgical cases over a 14-year period in the five main regions of Lebanon. Methods From 2005 to 2018, a total of 894 surgically confirmed cases of hydatidosis were recorded from five anatomy and pathology laboratories. Results The mean annual surgical incidence was 1.23/100,000 inhabitants. Over the span of these years, the incidence increased from 0.53 to 1.94 cases/100,000 inhabitants in 2005 and 2018, respectively. CE is present in Lebanon with an uneven distribution from one region to the other with higher prevalence in Bekaa (29.0%), a rural area where sheep raising is widespread. Human CE cases were more common in females (60.1%) than in males (39.9%) and a high burden of infection was reported for the age group of 30–39 years. Besides, 66.7% of the cases expressed only liver complications whereas, 20.5% showed predilection towards lungs. The 7.8% of cases presented cysts in other organs, and 1.3% showed multiple localizations. Additionally, predominant involvement of Echinococcus granulosus sensu stricto was recorded in human infections. Comparison of Echinococcus granulosus s.s. populations from different Mediterranean countries also revealed high gene flow among this region and sharing of alleles. Conclusion The current study is a step forward to fill the gap of knowledge for the hydatidosis in Lebanon where the lack of epidemiological data and control measures have resulted in higher incidence of human CE. Graphic Abstract

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