Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted. The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit 
         cc.nih.gov. Updates regarding government operating status and resumption of normal operations can be found at 
         opm.gov.
                
		
		            Division of International Epidemiology and Population Studies (DIEPS)
	            
	
	    
	            
		            
			            
			            The 
   Division of International Epidemiology and Population Studies (DIEPS) conducts original research in epidemiology and mathematical modeling of diseases, genomic evolution of pathogens, implementation sciences and population studies while seeking to enhance the scientific underpinnings of policies related to international health. DIEPS works to build research capacity in low- and middle-income countries through training and collaborative research in mathematical modeling, genomic epidemiology, biorisk management, implementation sciences and studies in childhood health and development.
 
   David J. Spiro, PhD, Director
 
 
    
       
  
Research Roundup
  
Read summaries of recently published studies from Fogarty's Division of International Epidemiology & Population Studies (DIEPS).
			            
			            
				            
			            
			            
			            
			            
			            
				            
					             
Publications & News
- 
      Repeated introductions and widespread transmission of human metapneumovirus in Côte d’Ivoire, co-authored by Fogarty’s Nidia Trovão
 BMC Infectious Diseases, September 2, 2025
- 
      Molecular evolutionary insights into the repeated introductions and cryptic transmission of dengue virus in Saudi Arabia, co-authored by Fogarty’s Nidia Trovão
 Journal of Infection, September 2025
-  
      Differential impact of COVID-19 non-pharmaceutical interventions on the epidemiological dynamics of respiratory syncytial virus subtypes A and B, co-authored by Fogarty’s Samantha Bents, Nídia Trovão, and Cécile Viboud
 Scientific Reports, June 24, 2024
-  
      Impacts of human mobility on the citywide transmission dynamics of 18 respiratory viruses in pre- and post-COVID-19 pandemic years, co-authored by Fogarty’s Amanda C. Perofsky, Chelsea L. Hansen, and Cécile Viboud
 Nature Communications, May 16, 2024
-  
      Charting the evolutionary course of influenza: Insights into epidemic dynamics
 Global Health Matters, March/April 2024
 
-  
      The risk of mpox importation and subsequent outbreak potential in Chinese mainland: a retrospective statistical modelling study, co-authored by Fogarty’s Kaiyuan Sun
 Infectious Diseases of Poverty, February 29, 2024
- 
      Synchrony of Bird Migration with Global Dispersal of Avian Influenza Reveals Exposed Bird Orders, co-authored by Fogarty’s Nidia Trovão
 Nature Communications, February 6, 2024
-  
      Comparative evolution of influenza A virus H1 and H3 head and stalk domains across host species, co-authored by Fogarty’s Nidia Trovão and Joshua Cherry
 mBio, January 16, 2024
- 
      Effects of Cooking with Liquefied Petroleum Gas or Biomass on Stunting in Infants, authored by HAPIN Trial investigators, supported by Fogarty and other NIH Institutes and Centers
 New 
      England Journal of Medicine, January 4, 2024
- 
      Liquefied Petroleum Gas or Biomass Cooking and Severe Infant Pneumonia, authored by HAPIN Trial investigators, supported by Fogarty and other NIH Institutes and Centers
 New England Journal of Medicine, January 4, 2024
Evaluations
 
More Information
 
Updated September 4, 2025