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Mem Inst Oswaldo Cruz. 2004 Oct;99(6):627-8. Epub 2004 Nov 18.

Larval recovery of Toxocara canis in organs and tissues of experimentally infected Rattus norvegicus.

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Instituto de Medicina Tropical, Av. Dr. Enéas de Carvalho Aguiar 500, 05403-000 São Paulo, SP, Brazil.


The aim of this note was to record for the first time the recovery of Toxocara canis larvae from tissues and organs of Rattus norvegicus (Berkenhout, 1769), Wistar strain, until the 60th day after experimental infection. Rats were orally infected with embryonated T. canis eggs, killed on days 3, 5, 8, 10, 15, 30, and 60 after inoculation and larvae were recovered from liver, lungs, kidneys, brain, and carcass after acid digestion, showing a pattern of migration similar of that previously observed in mice.

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