The 2009 H1N1 vaccination campaign was one of the largest public health campaigns in U.S. history, vaccinating one-quarter of the population in the first three months. The Institute of Medicine held three workshops in Raleigh, NC; Austin, TX; and Seattle, WA, to learn from participants' experiences during the campaign and improve future emergency vaccination programs.
Since the beginning of the 20th century, the number of people in the world has:
Since the beginning of the 20th century the number of people in the world has more than quadrupled—from 1.6 billion to nearly 7 billion—and world population is expected to rise to well over 9 billion by 2050.
Since the beginning of the 20th century the number of people in the world has more than quadrupled—from 1.6 billion to nearly 7 billion—and world population is expected to rise to well over 9 billion by 2050.
Since the beginning of the 20th century the number of people in the world has more than quadrupled—from 1.6 billion to nearly 7 billion—and world population is expected to rise to well over 9 billion by 2050.
