Skip to main content
An official website of the United States government

Infectious Agents

Viral and bacterial infections are known to cause a number of different malignancies in populations worldwide. DCEG carries out multidisciplinary studies of carefully selected populations in the United States and abroad, with the goal of clarifying the relationship of infectious agents, especially viruses, to human cancer and other conditions. DCEG has concentrated on HIV, human papillomaviruses (HPV), hepatitis viruses, and Epstein-Barr virus.

In response to the SARS-CoV-2 pandemic, a collaborative group of epidemiologists, geneticists, and data scientists accelerated the discovery of outcomes and risk factors for patients infected with SARS-CoV-2. Learn more about our COVID-19-related research.

Hepatitis Viruses

  • Hepatitis Viruses and Liver Cancer 
    DCEG investigators conduct interdisciplinary collaborative studies that integrate epidemiology, virology, and human genetics to study chronic hepatitis virus infection, the cause of most hepatocellular carcinoma (HCC), the third leading cause of cancer mortality worldwide.

Human Papillomavirus (HPV) Vaccines

  • Costa Rica HPV Vaccine Trial (CVT) and Long-Term Follow-up
    A randomized, controlled phase III trial of a vaccine to prevent human papillomavirus (HPV) 16 and 18 infections and their associated cervical lesions in Costa Rica.
  • ESCUDDO Efficacy Trial
    A study to determine if one dose of the HPV vaccines works as well as giving two doses of these vaccines to young women.
  • PRIMAVERA Immunobridging Trial
    A non-inferiority trial comparing immunogenicity from one dose of bivalent HPV vaccine in girls to three doses of quadrivalent vaccine in women.
  • PRISMA Efficacy Trial
    A study to determine if one dose of HPV vaccine is sufficient to reduce the risk of HPV infection in women, compared to no vaccine—the standard in the majority of the world.
  • Study of HPV Vaccine Efficacy at Extracervical sites
    A study to determine the impact of HPV vaccination in preventing infections in the oral, vulvar, and anal regions.

HPV Clinical Screening and Management

Human Immunodeficiency Virus (HIV)

  • HIV/AIDS Cancer Match Study
    HIV/AIDS cancer match study examines cancer risk among people living with HIV infection in the United States.

Epstein-Barr Virus (EBV)

SARS-CoV-2 (COVID-19)

DCEG investigators are applying their expertise to accelerate our understanding of the range of outcomes in patients with COVID-19 and identify those at greatest risk of adverse outcomes. Collaboration and a multidisciplinary approach are the hallmarks of COVID-related research, often with local, state, or federal organizations, as well as international research groups all working together to advance discovery.

COVID-Mortality Tracker

A collaboration of epidemiologists and data scientists to monitor weekly U.S. trends in overall and cause-specific mortality since the onset of the pandemic. COVID-Mortality Tracker displays publicly-available provisional vital statistics data from the National Center for Vital Statistics at the Centers for Disease Control and Prevention (CDC). Explore the COVID-Mortality Tracker. 

COVNET: Large-scale Genome-wide Association Study and Whole Genome Sequencing of COVID-19 Severity

A large genome-wide association study (GWAS) to identify common and rare germline genetic variants associated with susceptibility to severe or fatal COVID-19 disease. Learn more about COVNET.

The COVIDcode Study

A collaboration with the National Human Genome Research Institute and the National Institute of Allergy and Infectious Diseases to learn more about the genetic and immunologic contributions to the severity of disease of COVID-19. Distinct from COVNET, COVIDcode is actively enrolling study participants, including NIH Clinical Center patients and NIH staff. Learn more about COVIDcode.

The COV2Base Study

A collaboration with the National Heart, Lung, and Blood Institute to examine the effect of SARS-CoV2 infection on patients with rare diseases (e.g., Li-Fraumeni syndrome, DICER1-syndrome), quantifying the frequency and severity and looking for conditions that increase risk of severe outcomes. Additionally, this project will work to identify gene, tissue, or sociodemographic characteristics that increase risk of severe COVID outcomes that may inform future genetic modifier studies.

SeroHub: COVID-19 Seroprevalence Studies

The COVID-19 Seroprevalence Studies Hub (SeroHub) was developed by epidemiologists, data scientists, data engineers and other researchers at the Centers for Disease Control and Prevention (CDC), the NCI, and the National Institute of Allergy and Infectious Diseases (NIAID), parts of the National Institutes of Health, to compare COVID-19 seroprevalence studies across the country. Read more about SeroHub.

Email