Deksne Gunita, Kirjušina Muza
Institute of Food Safety, Animal Health and Environment BIOR, Lejupes Street 3, Riga, LV-1076 Latvia.
J Parasitol. 2013 Feb;99(1):44-7. doi: 10.1645/GE-3187.1. Epub 2012 Jul 5.
Consumption of undercooked pork products is considered a major risk factor for contracting toxoplasmosis in humans in several countries. In total, 803 pork samples and 606 wild boar meat samples were collected from different regions of Latvia during June 2010 and February 2011 were tested for Toxoplasma gondii antibodies using an in-house ELISA assay. Seroprevalence in wild boar (33.2%, P < 0.05) was significantly higher than in domestic pig (4.2%). The prevalence of T. gondii -specific antibodies was greater in free-ranging domestic pigs (6.2%, P < 0.05) than those that were intensively farmed (0.4%). Animals from free-range farms had 17.6 times higher odds ratio (OR) (95% confidence interval [CI]: 2.4-129.8) for the presence of specific T. gondii antibodies than animals from intensive farms. The OR (95% CI: 1.1-2.7) of feral wild boars for T. gondii -specific antibodies was 1.7 times higher than for farmed wild boars. Our findings indicate that the prevalence of T. gondii infection was higher for animals with open access to wildlife and direct contact with environment. This is the first report of T. gondii prevalence in pigs in Latvia.
在一些国家，食用未煮熟的猪肉制品被认为是人类感染弓形虫病的主要风险因素。2010年6月至2011年2月期间，从拉脱维亚不同地区共采集了803份猪肉样本和606份野猪肉样本，采用内部酶联免疫吸附测定法检测弓形虫抗体。野猪的血清阳性率（33.2%，P<0.05）显著高于家猪（4.2%）。散养的家猪中弓形虫特异性抗体的流行率（6.2%，P<0.05）高于集约化养殖的家猪（0.4%）。来自散养农场的动物存在特异性弓形虫抗体的比值比（OR）（95%置信区间[CI]：2.4-129.8）比来自集约化农场的动物高17.6倍。野猪中弓形虫特异性抗体的OR（95%CI：1.1-2.7）比养殖野猪高1.7倍。我们的研究结果表明，能够自由接触野生动物并直接接触环境的动物中弓形虫感染的流行率更高。这是拉脱维亚猪群中弓形虫流行率的首次报告。
