| Literature DB >> 14533703 |
J P Dubey1, D H Graham, Daniele Seipel da Silva, T Lehmann, Lilian M G Bahia-Oliveira.
Abstract
Most isolates of Toxoplasma gondii can be grouped into 3 genetic lineages. In the present study, 67 isolates of T. gondii were obtained by bioassay in mice inoculated with brains and hearts of 96 asymptomatic chickens from an area highly endemic to human infection in Rio de Janeiro, Brazil. Of the 48 isolates genotyped using the SAG2 locus, 34 (70%) were of type I and 13 (27%) were of type III. No isolate of type II was recovered. Isolates from 1 chicken contained a type I and type III mixed infection, indicating natural multiparasite infection in the same animal. Cats fed mice infected with 11 type I strains shed 19-535 million oocysts in their feces, indicating that type I isolates can circulate in the environment.Entities:
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Year: 2003 PMID： 14533703 DOI： 10.1645/GE-60R
Source DB: PubMed Journal: J Parasitol ISSN： 0022-3395 Impact factor: 1.276