Luciano Daniela Martins, Menezes Rodrigo Caldas, Ferreira Luiz Cláudio, Nicolau José Leonardo, das Neves Leandro Batista, Luciano Raquel Martins, Dahroug Magyda Arabia Araji, Amendoeira Maria Regina Reis
Toxoplasmosis Laboratory, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz-FIOCRUZ, Rio de Janeiro, RJ, Brazil.
Rev Bras Parasitol Vet. 2011 Oct-Dec;20(4):351-3. doi: 10.1590/s1984-29612011000400018.
This study aimed to estimate the occurrence of anti-Toxoplasma gondii antibodies by means of the Indirect Immunufluorescent Antibody Assay (IFAT) in cattle and pigs from slaughterhouses in two municipalities in the State of Rio de Janeiro. IgG anti-T. gondii antibodies was found in 1.96% (9/459) of the cattle and 7.64% (31/406) of the pigs, without any positive association (p > 0.05) with risk factors for transmission and seropositivity. Taking the cutoff point of IFAT ³ 1:64, titers of 64 and 256 were detected, suggesting chronic infection. Despite the low prevalence rates found for cattle and pigs, these indicated environmental contamination in the municipalities investigated, biosafety failures at the technified pig farm evaluated and the possibility of human and animal infection through eating raw or undercooked meat from these animals.
本研究旨在通过间接免疫荧光抗体试验（IFAT）估算里约热内卢州两个市屠宰场的牛和猪中抗弓形虫抗体的出现情况。在1.96%（9/459）的牛和7.64%（31/406）的猪中发现了抗弓形虫IgG抗体，与传播风险因素和血清阳性之间没有任何正相关（p>0.05）。以IFAT≥1:64为临界值，检测到64和256的滴度，提示慢性感染。尽管牛和猪的患病率较低，但这些表明在所调查的市存在环境污染、所评估的技术化养猪场存在生物安全故障，以及通过食用这些动物的生肉或未煮熟的肉而导致人和动物感染的可能性。
