[Prevalence of ocular lesions in children seropositive to Toxocara canis].

Intraocular invasion by Toxocara canis is one of the most commonly recognized etiologies of uveitis and blindness in children. In order to estimate the prevalence of ocular lesions caused by toxocariasis in a pediatric referral hospital, we conducted a retrospective analysis of clinical charts of all children seropositive to Toxocara canis, who also had an eye exam between the years 2005 and 2009 at the Calvo Mackenna Children's Hospital in Santiago, Chile. We identified 175 children [mean age 6 years (range 0.

[Systemic toxocariasis in the adult patient].

We report a retrospective review of eight patients (one male), aged 19 to 31 years old, with systemic toxocariasis (visceral larva migrans), seen at the Salvador Hospital of Santiago. Four cases had heart involvement, three had lung involvement and in two, several organs were affected. Seven cases had leukocytosis (range 14, 5 to 160 x 10(9)/l) and all had eosinophilia (35 to 90%).

[Familial seroepidemiology of toxocariasis].

With the objective of defining the intrafamiliar distribution pattern of the infection and illness caused by Toxocara sp., 78 infected families (356 people) were studied for 30 months. At the same time 28 families free of infection were studied, as a control group (97 people).