The municipal secretary of Health confirmed on March 20 2012 that a 49 year old woman who lived in the Méier, northern area of the city, died on March 4 of dengue in a private hospital. The secretariat went on to report that she died of dengue virus type 4 (DEN4), which has become the dominant type, appearing in slightly over 76% of all registered cases of dengue so far this year in Rio de Janeiro.
There is concern among health authorities because the height of the dengue season is usually in March, April and May, but the infection rate in recent weeks has already been running at around 70% above last year. Since January 2012, there have been 16,323 cases of dengue reported and, for the year, 24,950. (Government of Brazil, 21 Mar 2012).