Summary: Severe acute respiratory syndrome (SARS) emerged in southern China in November 2002 and spread rapidly along international air routes in early 2003. Asian countries had the most cases (7,782) and deaths (729). SARS challenged Asian health care systems, disrupted Asian economies, and tested the effectiveness of the International Health Regulations. GAO was asked to examine the roles of the World Health Organization (WHO), the U.S. government, and Asian governments (China, Hong Kong, and Taiwan) in responding to SARS; the estimated economic impact of SARS in Asia; and efforts to update the International Health Regulations.
WHO implemented extensive actions to respond to SARS, but its response was delayed by an initial lack of cooperation from officials in China and challenged by limited resources for infectious disease control. WHO activated its global infectious disease network and deployed public health specialists to affected areas in Asia to provide technical assistance. WHO also established international teams to identify the cause of SARS and provide guidance for managing the outbreak. WHO's ability to respond to SARS in Asia was limited by its authority under the current International Health Regulations and dependent on cooperation from affected areas. U.S. government agencies played key roles in responding to SARS in Asia and controlling its spread into the United States, but these efforts revealed limitations. The Centers for Disease Control and Prevention supplied public health experts to WHO for deployment to Asia and gave direct assistance to Taiwan. It also tried to contact passengers from flights and ships on which a traveler was diagnosed with SARS after arriving in the United States. However, these efforts were hampered by airline concerns and procedural issues. The State Department helped facilitate the U.S. government's response to SARS but encountered multiple difficulties when it tried to arrange medical evacuations for U.S. citizens infected with SARS overseas. Although the Asian governments we studied initially struggled to recognize the SARS emergency and organize an appropriate response, they ultimately established control. As the governments have acknowledged, their initial response to SARS was hindered by poor communication, ineffective leadership, inadequate disease surveillance systems, and insufficient public health capacity. Improved screening, rapid isolation of suspected cases, enhanced hospital infection control, and quarantine of close contacts ultimately helped end the outbreak. The SARS crisis temporarily dampened consumer confidence in Asia, costing Asian economies $11 billion to $18 billion and resulting in estimated losses of 0.5 percent to 2 percent of total output, according to official and academic estimates. SARS had significant, but temporary, negative impacts on a variety of economic activities, especially travel and tourism. The SARS outbreak added impetus to the revision of the International Health Regulations. WHO and its member states are considering expanding the scope of required disease reporting to include all public health emergencies of international concern and devising a system for better cooperation with WHO and other countries. Some questions are not yet resolved, including WHO's authority to conduct investigations in countries absent their consent, the enforcement mechanism to resolve compliance issues, and how to ensure public health security without unduly interfering with travel and trade.
