Feb 27, 2016
Here’s where the Zika virus came from and why it’s a problem in Brazil
Brazil
El Salvador
Colombia
Ecuador
by
,
The Conversation

Municipal agents spray anti Zika mosquitos chimical product at the sambadrome in Rio de Janeiro, on Jan. 26, 2016. Photo: Christophe Simon, Agence France-Presse
Increasing urbanization and poverty create a fertile environment for the mosquitoes that spread dengue by creating ample breeding sites. In addition, climate change may raise the temperature and/or humidity in areas that previously have been below the threshold required for the mosquitoes to thrive