Since human migrations began, germs have traveled with people, animals and traded goods. In an interconnected and mobile world, diseases such as HIV/AIDS and SARS can spread rapidly. Yet international cooperation through agencies such as the World Health Organization also allows for a collective response to global health threats and faster response times. Nations have developed diverse health care systems, aiming for cost-effective treatment. Yet the diverse systems contribute to disparities in global health, including availability of technology, pharmaceutical companies targeting innovations to maximize profits, and providers abandoning areas of need for higher salaries in the West, just to name a few.

Muslim Pilgrims Begin Hajj Pilgrimage

Saudi Arabia on alert for Ebola, MERS and Islamic State extremists
October 8, 2014

Health Care Gaps Increase Vulnerability to Ebola

US hospitals avoid uninsured, and the poor avoid care
Laurie Garrett
October 6, 2014

Heading Off a Bigger Ebola Catastrophe

Paradoxically, open borders combined with screening reduces fear and prevents spread
Scott Gottlieb and Tevi Troy
September 15, 2014

Desperate Chinese Seek Medical Care Abroad

Spending on health care in China anticipated to rise sevenfold by 2020
Fanfan Wang
September 10, 2014

Ebola Is Rapidly Mutating As It Spreads Across West Africa

International researchers worked around clock to sequence DNA
Michaeleen Doucleff
September 1, 2014