[Frequency of lesions suggestive of ocular toxoplasmosis among a rural population in the State of Rio de Janeiro].

To determine the prevalence of ocular toxoplasmosis among the general population of the district of Santa Rita de Cassia, Barra Mansa, State of Rio de Janeiro, a cross-sectional study on 1,071 individuals was performed. These subjects underwent serological tests (anti-Toxoplasma IgG and IgM) and physical and ophthalmological examinations. The diagnosis of presumed ocular toxoplasmosis was based on clinical and serological criteria and the appearance of the retinochoroidal lesion.

[Dengue prevention: focus on information].

The first three months of 2002 witnessed a dengue epidemic in the State of Rio de Janeiro. At that time, health authorities encouraged community participation in the elimination of vector breeding sites. For this campaign, a great quantity of information about the disease was extensively publicized in order to guide the population's preventive action.

[Prospective study of pregnants and babies with risk of congenital toxoplasmosis in municipal district of Rio Grande do Sul].

This study followed up 2,126 pregnant women cared for at SUS day-care clinics (Public Health Insurance System) of the northwest of the State of Rio Grande do Sul, Brazil. After serological screening we performed a follow up of all pregnant women and their babies. Serologic tests included: IgG, IgM, IgA and IgG avidity levels, mice inoculation and polymerase chain reaction (PCR) also placentas and umbilical materials were tested using immunoperoxidase as well as clinical evaluation.