The aim of this study was to evaluate the occurrence of Toxoplasma gondii in backyard pigs destined for human consumption in Pernambuco state, Brazil. Blood and tissue samples (liver, heart, brain, lung and diaphragm) were collected from 224 pigs from legal slaughterhouses and tested for T. gondii infection. Antibodies to T. gondii were found in the sera of 37.9% (85/224) by using the immunofluorescence antibody test (cut-off–1:64). Tissue samples from seropositive pigs were bioassayed in mice. Tissue samples from seropositive pigs and from mice of the bioassay were submitted to histopathology, immunohistochemistry, polymerase chain reaction (PCR) and sequencing; 14.1% of pig tissue samples and 27.7% of bioassayed mouse samples were positive for T. gondii DNA, but all pig and mouse tissues were negative in histopathology analysis and immunochemistry. By using a risk assessment questionnaire, there was significant difference (p<0.001) in seroprevalence of 21.2% (reproducer) and 3.1% (finishing pig). These data serve as indicative of the sanitary conditions and risk of T. gondii infection for backyard pigs. Preventive measures must be implemented by health services to avoid toxoplasmosis human cases due to ingestion of pig meat.

Erika Fernanda Torres Samico-Fernandes

Marcela Fernanda Torres Samico-Fernandes

Pedro Paulo Feitosa de Albuquerque

Jonatas Campos de Almeida

André de Souza Santos

André da Rocha Mota

Orestes Luiz de Souza Neto

Rinaldo Aparecido Mota

Acta Parasitologica

ACTA PARASITOLOGICA 是一本涵盖该学科最新进展的国际期刊。ACTA PARASITOLOGICA 发表关于寄生虫学和宿主-寄生虫关系各个方面的原创论文，包括寄生虫的生化和分子生物学、其生理学、形态学、分类学和生态学的最新发现，以及医学、兽医和生物科学背景下关于寄生虫病的免疫学、病理学和流行病学的原创研究论文。该杂志还出版简短的研究笔记、特邀评论文章、书评。该杂志于 1953 年由波兰寄生虫学会创办，当时名为“ACTA PARASITOLOGICA POLONICA”，自 1954 年起由波兰寄生虫学会 W. STEFANSKI 研究所出版。华沙的科学。自 1992 年以来，每年四期以 ACTA PARASITOLOGICA 的形式出现。

Acta Parasitologica is an international journal that covers the latest advancements in the field of parasitology. The journal publishes original research papers on various aspects of parasitology and host-parasite relationships, including the latest findings in the biochemistry and molecular biology of parasites, their physiology, morphology, taxonomy, and ecology, as well as original research on the immunology, pathology, and epidemiology of parasitic diseases in the context of medicine, veterinary science, and biological sciences. The journal also publishes brief research notes, invited reviews, and book reviews. Acta Parasitologica was founded in 1953, initially named 'Acta Parasitologica Polonica', and has been published by the W. Stefanski Institute of Parasitology of the Polish Parasitological Society since 1954. Since 1992, it has been published quarterly under the name Acta Parasitologica.

《Acta Parasitologica》是一本国际期刊，涵盖寄生虫学领域的最新进展。该期刊发表关于寄生虫及其宿主关系的原创研究论文，内容包括寄生虫的生化与分子生物学、其生理学、形态学、分类学和生态学的最新发现，以及在医学、兽医和生物科学背景下关于寄生虫病的免疫学、病理学和流行病学的研究。期刊还刊登简短的研究笔记、特邀评论和书评。《Acta Parasitologica》创办于1953年，最初名为“Acta Parasitologica Polonica”，自1954年起由波兰寄生虫学会W. Stefanski研究所出版，至1992年起以《Acta Parasitologica》名义每年出版四期。

Toxoplasma gondii in backyard pigs: seroepidemiology and mouse bioassay

Evaluating the occurrence of Toxoplasma gondii in backyard pigs destined for human consumption in Pernambuco state, Brazil found that preventive measures must be implemented by health services to avoid toxoplasmosis human cases due to ingestion of pig meat.

Category	Quartile
农林科学	3
农林科学, 兽医学	3
农林科学, 动物学	3
农林科学, 寄生虫学	4

Toxoplasma gondii in backyard pigs: seroepidemiology and mouse bioassay

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