Kaufmann Christine, Meli Marina L, Hofmann-Lehmann Regina, Zanolari Patrik
Tierpraxis mondo a, Riehen, Schweiz.
Berl Munch Tierarztl Wochenschr. 2010 Nov-Dec;123(11-12):477-81.
Haemotrophic mycoplasmas (also known as haemoplasmas), small bacterias which parasite the surface of erythrocytes, have been described in several species. Recently, molecular methods were developed for the diagnosis of haemoplasma infection. The presented study describes the first detection and the investigation of prevalence of "Candidatus Mycoplasma haemolamae" in South American Camelids in Switzerland. A random sample of the latter population was tested for haemoplasma infections using real-time PCR. The infection was detected in 18.6% of the animals and was found both in indigenous and in imported camelids. Of the tested herds 39,1% harboured at least one animal positive for haemoplasmas in PCR. There was no difference in prevalence between male and female animals and llamas and alpacas, respectively. Furthermore, the prevalence of infection was not significantly different in diseased animals compared to healthy camelids. From the latter observation and the fact that the high prevalence was accompanied by an undetectable incidence, we concluded that the pathogenicity of "Candidatus Mycoplasma haemolamae" may be low.
血营养支原体（也称为血支原体）是寄生于红细胞表面的小型细菌，已在多个物种中被描述。最近，开发了用于诊断血支原体感染的分子方法。本研究描述了瑞士南美骆驼科动物中首次检测到“嗜血性羊支原体（暂定种）”并调查其流行情况。使用实时PCR对该种群的随机样本进行血支原体感染检测。在18.6%的动物中检测到感染，且在本地和进口的骆驼科动物中均有发现。在接受检测的畜群中，39.1%的畜群至少有一只动物在PCR检测中血支原体呈阳性。雄性和雌性动物以及美洲驼和羊驼之间的感染率没有差异。此外，患病动物与健康骆驼科动物相比，感染率没有显著差异。基于后一观察结果以及高感染率伴随着未检测到发病率这一事实，我们得出结论，“嗜血性羊支原体（暂定种）”的致病性可能较低。
