Repercussions of Zika virus emergency on the health of the population of Tocantins state, Brazil, 2015 and 2016: a descriptive study.

Abstract

Objective To describe the occurrence of Zika virus disease and its complications in the state of Tocantins and in its capital, the city of Palmas. Methods This was a descriptive study using data from health information systems. Results Incidence of reported Zika virus disease cases in 2015 and 2016 was 295.2/100,000 inhabitants and 411.1/100,000 inhab. in the general population, and 5.9/1,000 and 27.8/1,000 live births, respectively. Higher risks occurred in women, the 20-39 year age group, municipalities in the central and northwestern regions of the state and in hotter months (February and March). Incidence of Zika-related microcephaly during pregnancy was 0.06/1,000 live births. One case of Guillain-Barré Syndrome resulting from Zika virus infection was confirmed. Conclusion Zika virus disease hit Tocantins intensely, although its adverse outcomes were less frequent than in other states.