Genotyping of Toxoplasma gondii isolated from pigs for human consumption.

Abstract:

:The present study aimed to isolate and genotype strains of T. gondii from pigs slaughtered for human consumption in South Brazil. Blood and tissues (heart, diaphragm, liver, tongue, and masseter) from 400 animals were collected at two slaughterhouses. Sera were obtained, and antibodies against T. gondii were detected by both indirect fluorescence antibody test (IFAT) and modified agglutination test (MAT). The tissues of animals that tested positive in MAT, IFAT, or both (cut-off ≥ 64) were bioassayed. Twenty-six (6.5%) of the 400 animals were positive by serology. A total of 18 (69.2%) out of those 26 were positive in the mouse bioassay. The isolates were characterized by using 10 PCR-RFLP genetic markers. Fourteen isolates were fully genotyped, and four isolates were genotyped using nine of the 10 markers. All isolates belonged to ToxoDB PCR-RFLP genotype #206. The present study reports on genotype #206 in pigs for the first time, and it confirms the atypical nature of the Brazilian T. gondii isolates. Additionally, even with low levels of antibodies detected in pig herds, pork presents a T. gondii infection risk for humans.

journal_name

Parasitol Res

journal_title

Parasitology research

authors

Miura AC,de Barros LD,Ferreira FP,Neto JMF,Sicupira Franco PML,Su C,Vidotto O,Garcia JL

doi

10.1007/s00436-019-06274-1

subject

Has Abstract

pub_date

2019-05-01 00:00:00

pages

1593-1599

issue

5

eissn

0932-0113

issn

1432-1955

pii

10.1007/s00436-019-06274-1

journal_volume

118

pub_type

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