Peer-reviewed veterinary case report
Hemoplasma infections in Swiss cats and their risk factors
By Willi, Barbara et al.·Published in Journal of clinical microbiology·2006·Vetsuisse Faculty·View original on PubMed →
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Original publication title: Prevalence, risk factor analysis, and follow-up of infections caused by three feline hemoplasma species in cats in Switzerland.
- Species:
- cat
Plain-English summary
A group of cats in Switzerland was studied for infections caused by three types of hemoplasma, which can lead to serious health issues like anemia. The researchers found that about 7% of healthy cats and 9% of sick cats had "Candidatus Mycoplasma haemominutum," while a newer type, "Candidatus Mycoplasma turicensis," was found in a few sick cats. Male cats, older cats, and those that spent time outdoors were more likely to be infected. Some infected cats showed signs of kidney problems, and while antibiotics helped some, the effectiveness varied by species. Overall, the study highlighted the importance of monitoring these infections in cats.
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Abstract
Recently, a third novel feline hemotropic Mycoplasma sp. (aka hemoplasma), "Candidatus Mycoplasma turicensis," in a cat with hemolytic anemia has been described. This is the first study to investigate the prevalence, clinical manifestations, and risk factors for all three feline hemoplasma infections in a sample of 713 healthy and ill Swiss cats using newly designed quantitative real-time PCR assays. "Candidatus Mycoplasma haemominutum" infection was detected in 7.0% and 8.7% and Mycoplasma haemofelis was detected in 2.3% and 0.2% of healthy and ill cats, respectively. "Candidatus Mycoplasma turicensis" was only detected in six ill cats (1.1%); three of them were coinfected with "Candidatus Mycoplasma haemominutum." The 16S rRNA gene sequence of 12 Swiss hemoplasma isolates revealed >98% similarity with previously published sequences. Hemoplasma infection was associated with male gender, outdoor access, and old age but not with retrovirus infection and was more frequent in certain areas of Switzerland. "Candidatus Mycoplasma haemominutum"-infected ill cats were more frequently diagnosed with renal insufficiency and exhibited higher renal blood parameters than uninfected ill cats. No correlation between hemoplasma load and packed cell volume was found, although several hemoplasma-infected cats, some coinfected with feline immunodeficiency virus or feline leukemia virus, showed hemolytic anemia. High M. haemofelis loads (>9 x 10(5) copies/ml blood) seem to lead to anemia in acutely infected cats but not in recovered long-term carriers. A repeated evaluation of 17 cats documented that the infection was acquired in one case by blood transfusion and that there were important differences among species regarding whether or not antibiotic administration led to the resolution of bacteremia.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/16517884/