We are gaining speed and strength in the poorest parts of the world," said Mickey Chopra, head of UNICEF's global programs. The challenge is to disseminate what works. India and Nigeria represent, between them, more than a third of all deaths due to their large populations. The higher mortality rate in Angola is the world, with 167 deaths per 1,000 births. Regionally, the most serious situation is in sub-Saharan Africa, with a rate of 92 deaths per 1,000 children born. In comparison, the rate in the United States is 7 deaths per 1,000 births.

But the economic situation of a country does not mean you can not move forward, the report said. All regions have made significant progress since 1990 The document explains that eight of the 60 countries with the highest rate of infant mortality have reduced their numbers by more than two-thirds since then: Malawi Bangladesh, Liberia, Tanzania, Ethiopia, Timor Oriental, Niger and Eritrea. The figure of 6.3 million dead children means about 200,000 fewer deaths than in 2012. Pneumonia, diarrhea and malaria are to blame for about a third of all deaths of children under 5 years, the report said. Chopra told the Associated Press that pneumonia and diarrhea are widespread because they are very easily transmitted. But he added that these diseases, along with malaria, are easily prevented with relatively inexpensive antibiotics. "It's very, very easy to prevent these diseases kill children," Chopra said. "An antibiotic costs 10 or 20 cents and basically saves lives."  Infants in their first month of life, accounting for 44% of deaths. "We are making much faster progress with older children," Chopra said. But some simple interventions can help it, he added, including new vaccines against childhood diarrhea and pneumonia.