Carol Liu

PhD Student




I am interested in understanding the impact of social mixing and human mobility on dynamics of infection transmission in the context of global health and humanitarian emergencies. During my PhD, I have been involved in profiling changes in social contact patterns and human mobility during COVID-19 and modelling SARS-CoV-2 transmission on college campuses.

Preferred Pronouns


Personal Academic Website

Research/Topics of Interest

Apply models to public health
Compartmental models
Geospatial models
Network models
Outbreak science
Public health application of models
Social networks/contact patterns
Spatial transmission patterns
Statistical models
Surveillance/case detection
social mixing

Pathogens/Diseases of Main Interest/Expertise

Diarrheal diseases
Respiratory diseases
Season influenza
Vaccine-preventable diseases

Countries of Work/Collaboration

United States



Aguolu OG, Willebrand K, Elharake JA, Qureshi HM, Kiti MC, Liu CY, Restrepo Mesa A, Nelson K, Jenness S, Melegaro A, Ahmed F, Yildirim I, Malik FA, Lopman B, Omer SB. (2022). Factors influencing the decision to receive seasonal influenza vaccination among US corporate non-healthcare workers. Human vaccines & immunotherapeutics

Lau MSY, Liu C, Siegler AJ, Sullivan PS, Waller LA, Shioda K, Lopman BA. (2022). Post-lockdown changes of age-specific susceptibility and its correlation with adherence to social distancing measures. Scientific reports, 12(1)

Liu CY, Smith S, Chamberlain AT, Gandhi NR, Khan F, Williams S, Shah S. (2022). Use of surveillance data to elucidate household clustering of SARS-CoV-2 in Fulton County, Georgia a major metropolitan area. Annals of epidemiology

Kiti MC, Aguolu OG, Liu CY, Mesa AR, Regina R, Woody M, Willebrand K, Couzens C, Bartelsmeyer T, Nelson KN, Jenness S, Riley S, Melegaro A, Ahmed F, Malik F, Lopman BA, Omer SB. (2021). Social contact patterns among employees in 3 U.S. companies during early phases of the COVID-19 pandemic, April to June 2020. Epidemics, (36)

Lopman B, Liu CY, Le Guillou A, Handel A, Lash TL, Isakov AP, Jenness SM. (2021). A modeling study to inform screening and testing interventions for the control of SARS-CoV-2 on university campuses. Scientific reports, 11(1)

Carol Y. Liu, Juliette Berlin, Moses C. Kiti, Emanuele Del Fava, André Grow, Emilio Zagheni, Alessia Melegaro, Samuel M. Jenness, Saad Omer, Benjamin Lopman, Kristin Nelson. (2021). Rapid review of social contact patterns during the COVID-19 pandemic. medRxiv

Liu CY, Berlin J, Kiti MC, Del Fava E, Grow A, Zagheni E, Melegaro A, Jenness SM, Omer SB, Lopman B, Nelson K. (2021). Rapid review of social contact patterns during the COVID-19 pandemic. Epidemiology (Cambridge, Mass.)

Barrera CM, Hazell M, Chamberlain AT, Gandhi NR, Onwubiko U, Liu CY, Prieto J, Khan F, Shah S. (2021). Retrospective cohort study of COVID-19 among children in Fulton County, Georgia, March 2020-June 2021. BMJ paediatrics open, 5(1)

Moses C. Kiti, Obianuju G. Aguolu, Carol Y. Liu, Ana R. Mesa, Rachel Regina, Kathryn Willebrand, Chandra Couzens, Tilman Bartelsmeyer, Kristin Nelson, Samuel Jenness, Steven Riley, Alessia Melegaro, Faruque Ahmed, Fauzia Malik, Ben Lopman, Saad B. Omer. (2020). Social contact patterns among employees in 3 U.S. companies during early phases of the COVID-19 pandemic, April to June 2020. medRxiv

Sabin Nsanzimana, Michael J Penkunas, Carol Y Liu, Dieudonne Sebuhoro, Alida Ngwije, Eric Remera, Justine Umutesi, Cyprien Ntirenganya, Soline D Mugeni, Janvier Serumondo. (2020). Effectiveness of Direct-Acting Antivirals for the treatment of chronic hepatitis C in Rwanda: A retrospective study. Clinical Infectious Diseases

Jean Damascene Makuza, Carol Y. Liu, Corneille Killy Ntihabose, Donatha Dushimiyimana, Sabine Umuraza, Marie Paul Nisingizwe, Justine Umutesi, Janvier Serumondo, Soline Dusabeyesu Mugeni, Muhamed Semakula, Neil Gupta, Margaret Hellard & Sabin Nsanzimana. (2019). Risk factors for viral hepatitis C infection in Rwanda: results from a nationwide screening program. BMC Infectious Diseases, 688(19)

Justine Umutesi, Carol Yingkai Liu, Michael J Penkunas, Jean Damascene Makuza, Corneille K Ntihabose, Sabine Umuraza, Julienne Niyikora, Janvier Serumondo, Neil Gupta, Sabin Nsanzimana. (2019). Screening a nation for hepatitis C virus elimination: a cross-sectional study on prevalence of hepatitis C and associated risk factors in the Rwandan general population. BMJ Open

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