Occurrence of Toxoplasma gondii and Hammondia hammondi oocysts in the faeces of cats from Germany and other European countries

Schares, Gereon; Vrhovec, Majda Globokar; Pantchev, Nikola; Herrmann, Daland; Conraths, Franz J.

doi:10.1016/j.vetpar.2007.12.004

Cited by 110 publications

(76 citation statements)

References 31 publications

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“…Our overall figure of 9.1% prevalence of patent Toxoplasma-like coccidial infections among adult cats is markedly higher than that cited for T. gondii in other reports that have used coproscopical methods (Schares et al 2008;reviewed by Dabritz and Conrad 2010). However, it is pertinent that Dubey et al (2010) have reported recently on the high prevalence of antibodies to T. gondii (49/57 tested positive) in wild felids in the UAE, and at a wildlife preservation institute in Qatar (21/27 were seropositive).…”

Section: Discussioncontrasting

confidence: 70%

“…obs.). Further work is needed to clearly identify the proportion of cats actually infected with T. gondii rather than H. hammondi, and this can be done by inoculation into mice, followed by relevant histological analysis and by molecular methods, specific diagnostic PCR primers having been developed for both species and used in recent studies (Homan et al 2000;Salant et al 2007;Schares et al 2008). If T. gondii proves to be largely responsible for the oocysts in our study it will be important in future to minimise T. gondii transmission from feral cats to the human population in Doha.…”

Section: Discussionmentioning

confidence: 99%

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Feline patent Toxoplasma-like coccidiosis among feral cats (Felis catus) in Doha city, Qatar and its immediate surroundings

Abu-Madi

Behnke

2014

Acta Parasitologica

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Doha city has a high feral cat population and studies of hospital records in Doha have shown that human toxoplasmosis also occurs. Clearly, there is a need to understand the role of cats as vectors of human toxoplasmosis in the city and as a first step we assessed the extent of patent Toxoplasma-like coccidial infections among feral cats. Oocysts in cat faeces were detected between June 2008 and April 2010, from a range of locations radiating out of the city centre in concentric semi circular/elliptic rings and by north, west and south divisions within each of the rings. In total 4,652 cats were sampled and overall prevalence of oocysts was 9.1%. Prevalence was 10.1% in the first summer, and then dropped to 8.4% in the following winter and further to 6.8% in the next summer before rising to 10.6% in the final winter of the study; this interaction between annual period and season was significant. There were also significant changes in prevalence across each of the consecutive months of the study, but no clear pattern was evident. Prevalence did not vary significantly by city sector and there was no difference in prevalence between the host sexes. We conclude therefore, that despite minor and significant perturbations, the prevalence of patent Toxoplasma-like coccidial infections among cats in Doha is remarkably stable throughout the year, across years and spatially within the city's districts.

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Section: Discussioncontrasting

confidence: 70%

Section: Discussionmentioning

confidence: 99%

Feline patent Toxoplasma-like coccidiosis among feral cats (Felis catus) in Doha city, Qatar and its immediate surroundings

Abu-Madi

Behnke

2014

Acta Parasitologica

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“…In addition to the primers JS4, Tim2, Tim3 and Tim11 previously used in other studies to detect tissue cystforming coccidia (Schares et al, 2005(Schares et al, , 2008a, the primers listed in Table 1 were employed. For the specific detection of B. besnoiti, the primer pair Bb-ITS1-F and Bb-ITS1-R was used ( Table 2).…”

Section: Pcrmentioning

confidence: 99%

First in vitro isolation of Besnoitia besnoiti from chronically infected cattle in Germany

Schares

Basso

Majzoub

et al. 2009

Veterinary Parasitology

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“…Investigators 25,26 have experienced some of these problems, specifically caused by the lack of a practical method for differentiation of T. gondii oocysts from oocysts of coccidia of similar morphology, when attempting to determine the rate of T. gondii oocyst shedding by cats.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Analysis of Coprologic Diagnostic Methods for Detection of Toxoplama gondii in Cats

Salant¹,

Spira²,

Hamburger³

2010

The American Society of Tropical Medicine and Hygiene

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Abstract. The relative role of transmission of Toxoplasma gondii infection from cats to humans appears to have recently increased in certain areas. Large-scale screening of oocyst shedding in cats cannot rely on microscopy because oocyst identification lacks sensitivity and specificity, or on bioassays, which require test animals and weeks before examination. We compared a sensitive and species-specific coprologic-polymerase chain reaction (copro-PCR) for detection of T. gondii infected cats with microscopy and a bioassay. In experimentally infected cats followed over time, microscopy was positive occasionally, and positive copro-PCR and bioassay results were obtained continuously from days 2 to 24 postinfection. The copro-PCR is at least as sensitive and specific as the bioassay and is capable of detecting infective oocysts during cat infection. Therefore, this procedure can be used as the new gold standard for determining potential cat infectivity. Its technologic advantages over the bioassay make it superior for large-scale screening of cats.

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Occurrence of Toxoplasma gondii and Hammondia hammondi oocysts in the faeces of cats from Germany and other European countries

Cited by 110 publications

References 31 publications

Feline patent Toxoplasma-like coccidiosis among feral cats (Felis catus) in Doha city, Qatar and its immediate surroundings

Feline patent Toxoplasma-like coccidiosis among feral cats (Felis catus) in Doha city, Qatar and its immediate surroundings

First in vitro isolation of Besnoitia besnoiti from chronically infected cattle in Germany

A Comparative Analysis of Coprologic Diagnostic Methods for Detection of Toxoplama gondii in Cats

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