| Literature DB >> 32518965 |
Renata Pimentel Bandeira de Melo1, Flaviana Santos Wanderley2, Wagnner José Nascimento Porto3, Camila de Morais Pedrosa4, Clare M Hamilton5, Maria Heloísa Gomes Silva de Oliveira4, Müller Ribeiro-Andrade6, Renata Camila da Silva Rêgo2, Frank Katzer5, Rinaldo A Mota6.
Abstract
We report a case of severe congenital toxoplasmosis that involved an atypical T. gondii genotype in a newborn baby from Alagoas state in Northeastern Brazil. A pregnant woman presented IgM and IgG anti-T. gondii antibodies, as detected by the chemiluminescence immunoassay on the second trimester of pregnancy. A mouse bioassay was performed using umbilical cord blood and one isolate was obtained. The isolate was designated TgCTBrAL1 and genetic characterization revealed genotype ToxoDB #162. Genotype results of the rhoptry genes, ROP5 and ROP18, could predict the high virulence of the isolate in mice, which was confirmed by an in vivo virulence assay. This is the first report of generating a T. gondii isolate from a newborn baby with congenital toxoplasmosis in Northeastern Brazil.Entities:
Keywords: Genotyping; Mouse bioassay; Newborn; Virulence
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Year: 2020 PMID: 32518965 DOI: 10.1007/s00436-020-06746-9
Source DB: PubMed Journal: Parasitol Res ISSN: 0932-0113 Impact factor: 2.289