title: Reply to Wallon and Peyron.
authors.affiliation: Ophthalmology and Visual Sciences, Pediatrics (Division of Infectious Diseases) Toxoplasmosis Center, University of Chicago.
authors.forename: Rima
authors.initials: R
authors.lastname: McLeod
authors.affiliation: Ophthalmology and Visual Sciences, Pediatrics (Division of Infectious Diseases) Toxoplasmosis Center, University of Chicago.
authors.forename: Kelsey M
authors.initials: KM
authors.lastname: Wheeler
authors.affiliation: Department of Pediatrics (Division of Infectious Diseases), Rush-Presbyterian-St Luke's Hospital and Rush University School of Medicine, Chicago, Illinois.
authors.forename: Kenneth
authors.initials: K
authors.lastname: Boyer