Dengue, chikungunya and zika are three viruses that are circulating at the same time in Brazil. The three viruses are transmitted by the same vector, a mosquito called Aedes aegypti. The history of chikungunya and zika viruses in Brazil is relatively recent. The first autochthonous case of chikungunya was registered in 2014 in the northern region and zika virus in the northeast region of Brazil in 2015. All those viruses usually have limited symptoms, such as fever, malaise, join pains, itching and maculopapulous exanthem. Most of cases does not have any other complication and recovers in a week. Rarely severe complications can occur, such as sepsis and hemorrhage. Recently, zika virus was possibly associated with neurological symptoms (Guillain-Barré syndrome) and birth defects such as microcephaly. Nevertheless, this relationship is still under debate.
The Panamerican Health Organization recommends the following to prevent dengue, chikungunya and zika fever:
. All people living in or visiting areas with Aedes mosquitoes should protect themselves from mosquito bites by using insect repellent; wearing clothes (preferably light-colored) that cover as much of the body as possible; using physical barriers such as screens, closed doors and windows;
. Pregnant women should be especially careful to avoid mosquito bites.
We also provide you the links below to clarify the situation from credible medical and public health perspectives.