[Autochthonous malaria notified in the State of São Paulo: clinical and epidemiological characteristics from 1980 to 2007].

Introduction: Autochthonous malaria in the State of São Paulo is characterized by sporadic outbreaks in the western region and by persistent transmission in the eastern region, where oligosymptomatic cases with low parasitemia due to Plasmodium vivax occur. The objectives of this study were to assess the completeness of autochthonous malaria notification forms; to estimate the incidence trends of autochthonous cases in the State of São Paulo from 1980 to 2007; and to analyze the clinical and epidemiological patterns of cases in two autochthonous regions over this period.

Methods: This was a descriptive study that analyzed 18 variables on the notification form for malaria in the State of São Paulo, comparing these two regions over two periods (1980-1993 and 1994-2007).