From Yale School of Public Health, Global Health Justice Partnership, and Yale Law School, Yale University, New Haven, Connecticut, and Ministério da Saúde, Salvador, Brazil.

From Yale School of Public Health, Global Health Justice Partnership, and Yale Law School, Yale University, New Haven, Connecticut, and Ministério da Saúde, Salvador, Brazil.

From Yale School of Public Health, Global Health Justice Partnership, and Yale Law School, Yale University, New Haven, Connecticut, and Ministério da Saúde, Salvador, Brazil.

Brazil is the most severely affected country in Latin America's ongoing Zika virus (ZIKV) epidemic, which was declared a Public Health Emergency of International Concern by the World Health Organization (WHO) amid recognition of ZIKV as a cause of microcephaly and other congenital disorders, as well as Guillain–Barré syndrome. The Brazilian city of Rio de Janeiro is scheduled to host the Olympic and Paralympic Games from August to September 2016, with a projected attendance of 350 000 to 500 000 visitors.

Considerable attention is being focused on potential ZIKV exposure among travelers attending the Olympics and the possibility that they will contribute ...