Cruz Marúcia de Andrade, Ullmann Leila Sabrina, Montaño Patrícia Yukiko, Hoffmann Juliano Leônidas, Langoni Helio, Biondo Alexander Welker
Departamento de Medicina Veterinaria, Universidade Federal do Paraná--UFPR, Brazil.
Rev Bras Parasitol Vet. 2011 Jul-Sep;20(3):256-8. doi: 10.1590/s1984-29612011000300016.
Toxoplasmosis is a worldwide zoonosis caused by the protozoa Toxoplasma gondii which infects all warm-blood vertebrates. This study aimed to assess the seroprevalence of anti-Toxoplasma gondii antibodies in a population of domestic cats seen at a major cat-only veterinary clinic in Curitiba, Paraná State, Southern Brazil. Serum samples were processed by indirect immunofluorescence assay (IIFA) for the detection of IgG. Antibody titers were found in 16.3% (46/282) of sera analyzed, with titers to T. gondii of 16 in eight cats, 64 in 23 cats, 256 in 14 cats and 1024 in one cat. Statistical differences were not found regarding the association with age, gender and different areas of the city (p > 0.05). No significant differences were found in any variable when comparing seropositivity with potential risk factors. The seroprevalence was relatively lower when compared to other Brazilian regions, probably due to the fact that the cats studied were owned, domiciled with restricted dietary habits based on processed foods, restricted access to the street and no prey access. In conclusion, low feline toxoplasmosis seroprevalence may be associated to owned cats due to adequate dietary care and restricted outdoor access, as well as low local environmental exposure.
弓形虫病是一种由刚地弓形虫原虫引起的全球性人畜共患病，该原虫可感染所有温血脊椎动物。本研究旨在评估巴西南部巴拉那州库里蒂巴一家大型只诊治猫的兽医诊所收治的家猫群体中抗刚地弓形虫抗体的血清流行率。血清样本通过间接免疫荧光法（IIFA）进行处理以检测IgG。在分析的282份血清中，16.3%（46/282）检测到抗体滴度，其中8只猫的弓形虫抗体滴度为16，23只猫为64，14只猫为256，1只猫为1024。在与年龄、性别和城市不同区域的关联方面未发现统计学差异（p>0.05）。将血清阳性与潜在风险因素进行比较时，在任何变量中均未发现显著差异。与巴西其他地区相比，该血清流行率相对较低，这可能是由于所研究的猫均有主人，以加工食品为主食，饮食习惯受限，很少外出且无法捕食。总之，由于饮食照料得当、户外活动受限以及当地环境暴露较少，家猫的弓形虫病血清流行率较低。
