7,000 in 2015. Health Venezuela has a national universal health care system. The current government has created a program to expand access to health care known as Misión Barrio Adentro, although its efficiency and work conditions have been criticized. It has been reported that many Misión Barrio Adentro clinics have been closed, and (as of December 2014) it is estimated that 80% of Barrio Adentro establishments in Venezuela are abandoned. Infant mortality in Venezuela was 19 deaths per 1,000 births for 2014 which was lower than the South American average (To compare: The U.S. figure was 6 deaths per 1,000 births in 2013 and the Canadian figure was 4.5 deaths per 1,000 live births). Child malnutrition (defined as stunting or wasting in children under the age of five) was 17%. Delta Amacuro and Amazonas had the nation's highest rates. According to the United Nations, 32% of Venezuelans lacked adequate sanitation, primarily those living in rural areas. Diseases ranging from diphtheria, plague, malaria, typhoid fever, yellow fever, cholera, hepatitis A, hepatitis B, and hepatitis D were present in the country. Obesity was prevalent in approximately 30% of the adult population in Venezuela. Venezuela had a total of 150 sewage treatment plants; however, 13% of the population lacked access to drinking water, but this number had been dropping. During the economic crisis observed under President Maduro's presidency, medical professionals were forced to perform outdated treatments on patients. Education The literacy rate of the adult population was already at 91.1% by 1998. In 2008, 95.2% of the adult population was literate. The net primary school enrollment rate was at 91% and the net secondary school enrollment rate was at 63% in 2005. Venezuela has a number of universities, of which the most prestigious are the Central University of Venezuela (UCV) founded in Caracas in 1721, the University of Zulia (LUZ) founded in 1891, the University of the Andes (ULA) founded in Mérida State in 1810, the Simón Bolívar University (USB) founded in Miranda State in 1967, and the University of the East (UDO) founded in Sucre State in 1958. Currently, many Venezuelan graduates seek a future abroad because of the country's troubled economy and heavy crime rate. In a study titled "Venezolana Community Abroad: A New Method of Exile" by Thomas Páez, Mercedes Vivas, and Juan Rafael Pulido of the Central University of Venezuela, over 1.35 million Venezuelan college graduates have left the