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. 2016 Apr;22(4):691-3.
doi: 10.3201/eid2204.141819.

Elevated Toxoplasma gondii Infection Rates for Retinas from Eye Banks, Southern Brazil

Alessandra G Commodaro, Melissa Chiasson, Natarajan Sundar, Luiz Vicente Rizzo, Rubens Belfort Jr, Michael E Grigg

Elevated Toxoplasma gondii Infection Rates for Retinas from Eye Banks, Southern Brazil

Alessandra G Commodaro et al. Emerg Infect Dis. 2016 Apr.

Abstract

We found significantly higher incidence of Toxoplasma gondii DNA in eye bank specimens from Joinville in southern Brazil (13/15, 87%) than in São Paulo (3/42, 7%; p = 2.1 × 10E-8). PCR DNA sequence analysis was more sensitive at locus NTS2 than at locus B1; a high frequency of mixed co-infections was detected.

Keywords: Toxoplasma gondii; genotype; ocular toxoplasmosis; parasites; retina; serotype.

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Figures

Figure 1
Figure 1
Representative retinochoroidal lesions depicted for 3 of 18 archived eyes examined by optical microscopy for evidence of Toxoplasma gondii infection; 270 single eyes were examined, each from a different donor, obtained during 1985 and 2009 in São Paulo, São Paulo State, Brazil. Original magnification (left to right): ×20,
Figure 2
Figure 2
Cities where retinochoroidal scars consistent with Toxoplasma gondii infection were found on eyes donated to eye banks in Brazil during 1985 and 2009: São Paulo, São Paulo State, and its relative position in southern Brazil to Joinville, Santa Catarina State; 522 km separates the 2 cities.
See this image and copyright information in PMC

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