Atypical Toxoplasma gondii genotypes identified in oocysts shed by cats in Germany

Herrmann, Daland; Pantchev, Nikola; Vrhovec, Majda Globokar; Barutzki, D.; Wilking, Hendrik; Fröhlich, Andreas; Lüder, Carsten G. K.; Conraths, Franz J.; Schares, Gereon

doi:10.1016/j.ijpara.2009.08.001

Cited by 101 publications

(90 citation statements)

References 65 publications

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“…A seasonal pattern was also found in the proportion of cat faeces presenting oocysts in Germany. Faeces collected between January and June (0.09%) were significantly less often infected than those collected during the second part of the year, between July and December (0.31%) [87]. These observations are concordant with the above…”

Section: Temporal Dynamicssupporting

confidence: 87%

“…in Finland. In a recent study in Central and in Eastern Germany, Hermann et al [87] determined the complete genotype has been determined for twelve samples tissues from red foxes, using nine PCR-RFLP markers. In addition to T. gondii clonal type II apico II and apico I, type III and T. gondii showing non-canonial allele pattern were observed.…”

Section: T Gondii Strains In Wildlife At Temperate Latitudesmentioning

confidence: 99%

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The Life Cycle of Toxoplasma gondii in the Natural Environment

Gilot‐Fromont¹,

Lélu

Dardé

et al. 2012

Toxoplasmosis - Recent Advances

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Section: Temporal Dynamicssupporting

confidence: 87%

Section: T Gondii Strains In Wildlife At Temperate Latitudesmentioning

confidence: 99%

The Life Cycle of Toxoplasma gondii in the Natural Environment

Gilot‐Fromont¹,

Lélu

Dardé

et al. 2012

Toxoplasmosis - Recent Advances

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“…Humans may remain infected for life and will stay asymptomatic unless immunosuppression occurs (Herrmann et al 2010). Primary infection of toxoplasmosis in immunocompetent subject is usually asymptomatic or associated with self limited symptoms such as fever, malaise, and cervical lymphadenopathy.…”

Section: Introductionmentioning

confidence: 99%

The effect of toxoplasmosis on the level of some sex hormones in males blood donors in Baghdad

2013

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Toxoplasma gondii is a unique intracellular parasite, which infect a large proportion of the world population, but uncommonly causes clinically significant disease. The present study was performed to estimate the prevalence of toxoplasmosis in 400 apparently healthy blood donor males, their ages were between 18 and 57 years using enzyme linked immunosorbent assay, and to examine the effects of infection on total testosterone, free testosterone and follicle stimulating hormone (FSH) levels in their sera. Seroprevalence showed 10 (2.5 %) and 121 (30 %) of them had IgM and IgG antibodies respectively. Both acute and chronic toxoplasmosis in males recorded higher significant (P \ 0.05) mean concentration for total and free testosterone hormone, they were 12.188 ± 0.73, 7.837 ± 0.52 ng/ ml and 44.121 ± 1.76, 27.984 ± 0.94 pg/ml respectively. The mean concentration of FSH revealed non-significant (P \ 0.05) differences in both disease activities, they were 6.41 ± 0.47 and 6.515 ± 0.51 IU/ml respectively.

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“…According to Su et al (2006), the intraspecies differentiation of T. gondii exceeds this classification worldwide, but not in Europe. Type II of T. gondii is the most prevalent genotype isolated in Europe in animals (Herrmann et al 2010, Burrells et al 2013) and humans (Ajzenberg et al 2002, Nowakowska et al 2006. Type I was also reported in European countries from farm and wild animals and also from cases of human toxoplasmosis (Aspinall et al 2003, Berger-Schoch et al 2011, Burrells et al 2013, Turčeková et al 2014.…”

Section: Discussionmentioning

confidence: 96%

Toxoplasma gondii (Nicolle et Manceaux, 1908) detected in Dermacentor reticulatus (Fabricius) (Ixodidae)

Wójcik-Fatla¹,

Sroka²,

Zając³

et al. 2015

Folia Parasitologica

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Abstract:The aim of the present work was to determine whether Dermacentor reticulatus (Fabricius), tick species common in eastern Poland could be infected with Toxoplasma gondii (Nicolle et Manceaux, 1908). A total of 664 unfed D. reticulatus ticks were collected from six localities of Lublin province (eastern Poland) within the framework of study for the presence of bacterial, viral and parasitological infections, with use of PCR and confirmed by sequencing analysis. The prevalence of T. gondii DNA of B1 gene in the total examined D. reticulatus ticks was 3.2%. The infection varies greatly depending on the locality of tick collection (0-16.7%). Preliminary identification of clonal type (I or II/III) by Restriction Fragments Length Polymorphism PCR (RFLP-PCR) with use B1 gene showed that all isolates of T. gondii belonged to type I. RFLP analysis using genetic markers SAG1, 5'-SAG2, 3'-SAG2, SAG3, and GRA6 on B1-positive samples showed that only a single isolate proved to be type I with all five markers, another type was classified to type I according to four markers, while another five isolates had only type I alleles at GRA6, which cannot be regarded as type I confirmation. It must be pointed out that the used DNA isolation method by boiling with ammonium hydroxide enables to receive the total DNA from ticks, but may be not quite suitable for genotyping. In conclusion, this study indicates that besides Ixodes ricinus (Linnaeus), also D. reticulatus should be considered as a potential vector of T. gondii. The presumption of tick-borne transmission as an alternative pathway of disease spreading could well explain the high prevalence of toxoplasmosis among the herbivorous mammals and birds. However, this hypothesis needs verification by further experimental and ecological studies.

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Atypical Toxoplasma gondii genotypes identified in oocysts shed by cats in Germany

Cited by 101 publications

References 65 publications

The Life Cycle of Toxoplasma gondii in the Natural Environment

The Life Cycle of Toxoplasma gondii in the Natural Environment

The effect of toxoplasmosis on the level of some sex hormones in males blood donors in Baghdad

Toxoplasma gondii (Nicolle et Manceaux, 1908) detected in Dermacentor reticulatus (Fabricius) (Ixodidae)

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