[Outbreak of nephritis by Streptococcus equi subspecies zooepidemicus: case-control study in the municipality of Monte Santo de Minas, Minas Gerais, Brazil, 2013].

Objective: to investigate an outbreak of nephritis by Streptococcus zooepidemicus in Monte Santo de Minas, Minas Gerais State, Brazil.

Methods: a case-control study and attempt to isolate the bacterial agent were carried out from January to April 2013, using clinical and laboratory data, interviews and inspections.

Results: 417 suspected cases were reported, of which 175 (42.

[Data quality of dengue epidemiological surveillance in Belo Horizonte, Southeastern Brazil].

Objective: To evaluate the quality of data from the Brazilian information system for mandatory reporting diseases, for the detection of cases notified as suspected dengue fever and hospitalized in the public and private hospitals associated to the Public Health System.

Methods: The study was carried out in Belo Horizonte, Southeastern Brazil, during the years of 1996 to June 2002. The criterion of evaluation used were those recommended by the Guidelines for Evaluating Public Health Surveillance Systems.