Background
Parra, William was born on September 15, 1942 in San Diego, California, United States.
Parra, William was born on September 15, 1942 in San Diego, California, United States.
Bachelor of Science, Santa Clara U., 1964; Master of Science, Georgia State University, 1979.
Centers for Disease Control and Prevention public health advisor, United States Agency for International Development, Washington, 1971-1973; Centers for Disease Control and Prevention senior public health advisor, Commonwealth of Puerto Rico Department Public Health, San Juan, 1973-1976; chief training education, division sexually transmitted diseases, Centers for Disease Control and Prevention, Atlanta, 1976-1984; program management officer division communicable diseases, World Health Organization, Geneva, 1984-1988; deputy director Office of Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome, Centers for Disease Control and Prevention, Atlanta, 1988-1995; acting deputy director National Center for Human Immunodeficiency Virus, STD and Tuberculosis prevention, Centers for Disease Control and Prevention, Atlanta, ', 1995; deputy director National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, since 1996.