Laurie Garrett is a columnist at Foreign Policy, a former senior fellow for global health at the Council on Foreign Relations, and a Pulitzer Prize-winning science writer.
Aedes aegypti mosquitos are seen in containers at a lab of the Institute of Biomedical Sciences of the Sao Paulo University, on January 8, 2016 in Sao Paulo, Brazil. Researchers at the Pasteur Institute in Dakar, Senegal are in Brazil to train local researchers to combat the Zika virus epidemic. / AFP / NELSON ALMEIDA (Photo credit should read NELSON ALMEIDA/AFP/Getty Images)
An Iraqi man receives a dose of cholera vaccine at the jamiyah district in Baghdad, on November 1, 2015. The number of cholera cases in Iraq has risen to more than 1,800 and authorities have blamed the cholera outbreak mostly on the poor quality of water caused by the low level of the Euphrates. AFP PHOTO / SABAH ARAR (Photo credit should read SABAH ARAR/AFP/Getty Images)
Sierra Leonese government burial team members close the lid of a coffin over the body of Dr Modupeh Cole, Sierra Leone's second senior physician to die of Ebola, on a truck at the MSF facility in Kailahun, on August 14, 2014. Kailahun along with the Kenema district is at the epicentre of the worst epidemic of Ebola since its discovery four decades ago. The death toll stands at more than 1,000. The Ebola epidemic in West Africa claimed a fourth victim in Nigeria on August 14 while the United States ordered the evacuation of diplomats' families from Sierra Leone and analysts warned of a heavy economic toll on the stricken region. AFP PHOTO / CARL DE SOUZA (Photo credit should read CARL DE SOUZA/AFP/Getty Images)
View Of Cape Coast Castle. Cape Coast Castle Is A Fortification In Ghana Built By Swedish Traders For Trade In Timber And Gold. Later The Structure Was Used In The Trans-atlantic Slave Trade. . (Photo by: Universal History Archive/UIG via Getty Images)
German Chancellor Angela Merkel addresses the World Health Organization (WHO) general assembly on May 18, 2015 in Geneva. AFP PHOTO / FABRICE COFFRINI (Photo credit should read FABRICE COFFRINI/AFP/Getty Images)
Indian Minister of Health and Family Welfare and President of the assembly, Jagat Prakash Nadda lights a candle in memory of the deceased health workers at the World Health Organization (WHO) assembly on May 18, 2015 in Geneva. AFP PHOTO / FABRICE COFFRINI (Photo credit should read FABRICE COFFRINI/AFP/Getty Images)