The Asian Liver Center conducts collaborative research to identify the gaps in hepatitis B knowledge, healthcare providers’ training, preventive practices, screening and chronic hepatitis B care continuum in the United States and in countries with a high prevalence of chronic hepatitis B infection.  We also conduct modeling research to estimate the population level health and economic impact if new national policies are implemented to increase hepatitis B prevention, screening and treatment. An example is research in collaboration with the Stanford Prevention Policy Modeling Lab and US CDC that provided the cost-effectiveness evidence for the 2023 CDC recommendation to screen every adult in the United States at least once in their lifetime for hepatitis B.  

In collaboration with the World Health Organization, we have also developed Hep B Calculator, a free mathematical research tool to help countries determine the economic and population health impact of chronic hepatitis B treatment.  

Publications By Year

Pham TTH, Nguyen TTL, So S, Hoang THV, Nguyen TTU, Ngo TB, Nguyen MP, Thai QH, Nguyen NK, Ho TQAL, Tran QP, Mai TS, Toy M, Pham MK. Knowledge and Attitude Related to Hepatitis C among Medical Students in the Oral Direct Acting Antiviral Agents Era in Vietnam. Int J Environ Res Public Health. 2022 Sep 28;19(19):12298. doi: 10.3390/ijerph191912298.

Toy M, Hutton D, Jia J, So S. Costs and Health Impact of Delayed Implementation of a National Hepatitis B Treatment Program in China. J Glob Health 2022 Jul 8;12:04043. doi: 10.7189/jogh.12.04043.

Hutton DW, Toy M, Salomon JA, Conners EE, Nelson NP, Harris AM, So S. Cost-Effectiveness of Hepatitis B Testing and Vaccination of Adults Seeking Care for Sexually Transmitted Infections. Sex Transm Dis. 2022 Jul 1;49(7):517-525. doi: 10.1097/OLQ.0000000000001632.

Toy M, Hutton D, Harris A, Nelson N, Salomon J, So S. Cost-Effectiveness of One-Time Universal Screening for Chronic Hepatitis B Infection in Adults in the United States. Clin Infect Dis 2022 Jan 29;74(2):210-217. doi: 10.1093/cid/ciab405.

Cohen C, Moraras K, Jackson M, Kamischke M, Gish RG, Brosgart CL, Toy M, Hutton D, Block TM, Wang S, So S. Letter to the editor: Importance of universal screening for chronic hepatitis B infection in adults in the United States. Hepatology. 2022 Apr;75(4):1062-1063. doi: 10.1002/hep.32304.

Toy M, Hutton D, McCulloch K, Romero N, So SK, Cowie B. The Price Tag of a Potential Cure for Chronic Hepatitis B Infection: A Cost Threshold Analysis for USA, China, and Australia. Liver Int. 2022 Jan;42(1):16-25. doi: 10.1111/liv.15027.