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1. New Findings on Links between Urban Expansion and Viral Disease in Vietnam Offer Lessons for COVID-19

Author:
James H. Spencer, Sumeet Saksena, and Jefferson Fox
Publication Date:
04-2020
Content Type:
Commentary and Analysis
Institution:
East-West Center
Abstract:
The current COVID-19 pandemic, which started in Wuhan, China, underscores what the public health community has warned about for more than two decades—the risk of viral diseases capable of spreading from animal to human hosts. The first outbreaks of “bird flu” (highly pathogenic avian influenza—HPAI, subtype H5N1)—raised similar concerns 20 years ago, concerns that have persisted with the outbreak of SARS in 2002–2004 and COVID-19 today. A recent study compared information on infrastructure and other aspects of economic development in Vietnam with outbreaks of avian influenza. While this research focuses on avian influenza in Vietnam, the study of links between infrastructure characteristics and new and reemerging health risks has broad applicability, especially given the global importance of today’s rapidly expanding urban landscapes.
Topic:
Infectious Diseases, Urban, and COVID-19
Political Geography:
China, Asia, and Vietnam

2. Does Unplanned Urbanization Pose a Disease Risk in Asia? The Case of Avian Influenza in Vietnam

Author:
Sumeet Saksena
Publication Date:
01-2017
Content Type:
Special Report
Institution:
East-West Center
Abstract:
Cities are expanding very rapidly in Asia, often without adequate housing, transportation, water, or sanitation. ese new “peri-urban” areas may be hot spots for disease, both in humans and domestic animals. Research into the possible link between unplanned urban expansion and disease outbreaks compared patterns of land-use change with two major outbreaks in Vietnam of highly pathogenic avian in uenza (HPAI, subtype H5N1) that killed millions of chickens between 2003 and 2005. Work began by classifying communes into land-use categories: rural, peri-urban, urban, and urban core. e study found that peri-urban communes had at least a 150 percent higher risk of experiencing an H5N1 outbreak than did other types of commune, and that urbanization entails a spatial convergence of several key risk factors for H5N1 transmission. By focusing prevention programs on communes with these factors, the Vietnamese government can potentially improve disease prevention at lower cost. is research may also help explain the epidemi- ology of other infectious diseases, both in humans and livestock.
Topic:
Health, Urbanization, and International Development
Political Geography:
Asia