Haitians protest against United Nations peacekeepers in Port-au-Prince in 2010. Hector Retamal/AFP/Getty Images hide caption

itoggle caption Hector Retamal/AFP/Getty Images

Boys at the L'Ecole Les Freres Clement elementary school in Jacmel, Haiti, line up to take deworming pills that protect against elephantiasis. Maggie Steber for The Washington Post/Getty Images hide caption

itoggle caption Maggie Steber for The Washington Post/Getty Images

Many homes that were rebuilt after the earthquake in 2010 are even more dangerous than the original ones. This three-story home was put up after the quake but is already slated for demolition to make way for an 18-unit housing project. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

Haitians protest against the United Nations peacekeepers in Port-au-Prince in November 2010. Hector Retamal/AFP/Getty Images hide caption

itoggle caption Hector Retamal/AFP/Getty Images

Jacqueline Syra has been living in the La Piste camp for three years. She says she has no idea when she will be able to leave. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

Hurricane Sandy's tear across the Caribbean left at least 54 dead in Haiti, where many people still live in tents because of damage from the 2010 earthquake. Thony Belizaire/AFP/Getty Images hide caption

itoggle caption Thony Belizaire/AFP/Getty Images

Many Haitian children suffer from "stunting" due to inadequate nutrition. Health experts now are trying to prevent this with snacks made from peanut butter, fortified with vitamins and minerals. Alex E. Proimos/via flickr hide caption

itoggle caption Alex E. Proimos/via flickr

Thousands of doses of cholera vaccine sit in a refrigerated trailer in a United Nations compound in Saint-Marc, Haiti, in March. After some delays, a vaccination project proved successful. John Poole/NPR hide caption

itoggle caption John Poole/NPR

Haitians celebrate their independence from France on Jan. 1 each year with a traditional squash soup called soup joumou. Courtesy of Whole Foods hide caption

itoggle caption Courtesy of Whole Foods

Fires also burned overnight up and down the streets of Petionville, outside the capital Port-au-Prince. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR