Water and sanitation play a crucial role in the transmission of diarrheal disease. These environmental factors contribute to approximately 94 percent of the 4 billion cases of diarrhea that the World Health Organization (WHO) estimates to occur globally each year.
(1999) The 20th century has witnessed the transformation of the United States from a predominately white population rooted in Western culture to a society with a rich array of racial and ethnic minorities.
(1999) The 20th century has witnessed the transformation of the United States from a predominately white population rooted in Western culture to a society with a rich array of racial and ethnic minorities.
(2007) New population estimates from the U.S. Census Bureau show that Hispanics continue to fuel rapid population growth in the United States. Between 2000 and 2006, the Hispanic population grew from 35.3 million to 44.3 million, a 26 percent increase.
(2008) Fertility has declined significantly throughout the developing world, and in Latin America total fertility rates (TFRs) have declined by 50 percent over the last three decades, from 5.0 births per woman in 1970 to only 2.5 today.1
(2009) Family planning reduces infant and maternal mortality rates by allowing women to plan and space their pregnancies and avoid unintended pregnancies.
(2004) Over the last 100 years, few racial or ethnic groups have had as great an impact on the demography of the United States as Latinos. In 1900, there were only slightly more than 500,000 Latinos.1