A municipal health worker sprays insecticide to combat the Aedes aegypti mosquito, Joao Pessoa, Brazil, Feb. 22, 2016 (AP photo by Andre Penner).

The Zika virus is not new, but its spread and possible connections to microcephaly—a birth defect in which a baby has an abnormally small head—have caught the international community’s attention. Zika is not the same kind of challenge as Ebola, but it will require some similar measure of international cooperation to adequately address. While the World Health Organization’s declaration of a Public Health Emergency of International Concern on Feb. 1 is a good start, there are still fundamental questions that could complicate the international community’s response. Why is Zika spreading now? The virus, which emerged out of its relative geographic […]

President Barack Obama and Cuban President Raul Castro before a bilateral meeting, United Nations headquarters, New York, Sept. 29, 2015 (AP photo by Andrew Harnik).

On Thursday, the White House announced that President Barack Obama will visit Cuba next month, the first trip there by an American president since 1928. Obama will meet with Cuban President Raul Castro and members of civil society, including dissidents who have criticized Cuba’s human rights record. U.S.-Cuba relations began to thaw in December 2014, when Obama and Castro announced the launch of a normalization process that would break decades of hostility. Last April, the Obama administration removed Cuba from the U.S. State Sponsors of Terrorism List, and in July, the Cuban flag was raised over the embassy in Washington […]