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Department of

Environmental Health

Photo of  Jason Blackard, PhD

Jason Blackard, PhD

Associate Professor of Medicine (Digestive Diseases); Director, Office of Global Health

Education/Credentials
  • Bachelor's Degree: University of Arkansas
  • Doctoral Degree: Harvard University
  • Fellowship: Gastrointestinal Unit Harvard Medical School/Massachusetts General Hospital

Research/Clinical Interests

Dr. Blackard directs a basic and translational research laboratory that focuses on human and mechanistic studies to understand the interactions between various viral pathogens. Current work in the laboratory involves studies of several hepatitis viruses, including hepatitis B (HBV), hepatitis E (HEV), and GB virus C (GBV-C), as well as HIV.

Contact Information
  • Office 7210 Medical Sciences Building
  • 231 Albert Sabin Way
  • PO Box 670595
  • Cincinnati, Ohio 45267-0595
  • Office 513-558-4389
  • Fax 513-558-1744
  • Email jason.blackard@uc.edu

Peer Reviewed Publications

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Bari, Khurram; Luckett, Keith; Kaiser, Tiffany; Diwan, Tayyab; Cuffy, Madison; Schoech, Michael R; Safdar, Kamran; Blackard, Jason T; Apewokin, Senu; Paterno, Flavio; Sherman, Kenneth E; Zucker, Stephen D; Anwar, Nadeem; Shah, Shimul A 2018. Hepatitis C transmission from seropositive, nonviremic donors to non-hepatitis C liver transplant recipients. Hepatology (Baltimore, Md.), 67 5, 1673-1682

Blackard, Jason T; Sherman, Kenneth E 2018. Hepatitis B virus (HBV) reactivation-The potential role of direct-acting agents for hepatitis C virus (HCV). Reviews in medical virology, , e1984

Gededzha, Maemu P; Sondlane, Tsakani H; Malinga, Lesibana A; Burnett, Rosemary J; Lebelo, Ramokone L; Blackard, Jason T; Mphahlele, M Jeffrey; Selabe, Selokela G 2018. Molecular characterization of hepatitis B virus X gene in HIV-positive South Africans. Virus genes, 54 2, 190-198

Mbangiwa, Tshepiso; Kasvosve, Ishmael; Anderson, Motswedi; Thami, Prisca K; Choga, Wonderful T; Needleman, Austen; Phinius, Bonolo B; Moyo, Sikhulile; Leteane, Melvin; Leidner, Jean; Blackard, Jason T; Mayondi, Gloria; Kammerer, Betsy; Musonda, Rosemary M; Essex, Max; Lockman, Shahin; Gaseitsiwe, Simani 2018. Chronic and Occult Hepatitis B Virus Infection in Pregnant Women in Botswana. Genes, 9 5,

N'Guessan, Kombo F; Boyce, Ceejay; Kwara, Awewura; Archampong, Timothy N A; Lartey, Margaret; Sagoe, Kwamena W; Kenu, Ernest; Obo-Akwa, Adjoa; Blackard, Jason T 2018. Human pegivirus (HPgV) infection in Ghanaians co-infected with human immunodeficiency virus (HIV) and hepatitis B virus (HBV). Virus genes, 54 3, 361-367

White, Mary T; Satterfield, Caley A; Blackard, Jason T 2018. Response to: Comment on: Essential competencies in global health research for medical trainees: A narrative review. Medical teacher, 40 3, 319-320

Archampong, Timothy Na; Boyce, Ceejay L; Lartey, Margaret; Sagoe, Kwamena W; Obo-Akwa, Adjoa; Kenu, Ernest; Blackard, Jason T; Kwara, Awewura 2017. HBV genotypes and drug resistance mutations in antiretroviral treatment-naive and treatment-experienced HBV-HIV-coinfected patients. Antiviral therapy, 22 1, 13-20

Blackard, Jason T; Kong, Ling; Lombardi, Angela; Homann, Dirk; Hammerstad, Sara Salehi; Tomer, Yaron 2017. A preliminary analysis of hepatitis C virus in pancreatic islet cells. Virology journal, 14 1, 237

Blackard, Jason T; Ma, Gang; Welge, Jeffrey A; Taylor, Lynn E; Mayer, Kenneth H; Klein, Robert S; Celentano, David D; Sobel, Jack D; Jamieson, Denise J; King, Caroline C 2017. Cytokine/chemokine expression associated with Human Pegivirus (HPgV) infection in women with HIV. Journal of medical virology, ,

Boyce, Ceejay L; Ganova-Raeva, Lilia; Archampong, Timothy N A; Lartey, Margaret; Sagoe, Kwamena W; Obo-Akwa, Adjoa; Kenu, Ernest; Kwara, Awewura; Blackard, Jason T 2017. Identification and comparative analysis of hepatitis B virus genotype D/E recombinants in Africa. Virus genes, ,

Hammerstad, Sara Salehi; Stefan, Mihaela; Blackard, Jason; Owen, Randall P; Lee, Hanna J; Concepcion, Erlinda; Yi, Zhengzi; Zhang, Weijia; Tomer, Yaron 2017. Hepatitis C Virus E2 Protein Induces Upregulation of IL-8 Pathways and Production of Heat Shock Proteins in Human Thyroid Cells. The Journal of clinical endocrinology and metabolism, 102 2, 689-697

N'Guessan, Kombo F; Anderson, Motswedi; Phinius, Bonolo; Moyo, Sikhulile; Malick, Alyyah; Mbangiwa, Tshepiso; Choga, Wonderful T; Makhema, Joseph; Marlink, Richard; Essex, Max; Musonda, Rosemary; Gaseitsiwe, Simani; Blackard, Jason T 2017. The Impact of Human Pegivirus on CD4 Cell Count in HIV-Positive Persons in Botswana. Open forum infectious diseases, 4 4, ofx222

Ryan, Kathleen; Anderson, Motswedi; Gyurova, Ivayla; Ambroggio, Lilliam; Moyo, Sikhulile; Sebunya, Teresa; Makhema, Joseph; Marlink, Richard; Essex, Max; Musonda, Rosemary; Gaseitsiwe, Simani; Blackard, Jason T 2017. High Rates of Occult Hepatitis B Virus Infection in HIV-Positive Individuals Initiating Antiretroviral Therapy in Botswana. Open forum infectious diseases, 4 4, ofx195

Saha, Debraj; Pal, Ananya; Sarkar, Neelakshi; Das, Dipanwita; Blackard, Jason T; Guha, Subhasish Kamal; Saha, Bibhuti; Chakravarty, Runu 2017. Occult hepatitis B virus infection in HIV positive patients at a tertiary healthcare unit in eastern India. PloS one, 12 6, e0179035

Singh, Shivank; Blackard, Jason T 2017. Human pegivirus (HPgV) infection in sub-Saharan Africa-A call for a renewed research agenda. Reviews in medical virology, 27 6,

White, Mary T; Satterfield, Caley A; Blackard, Jason T 2017. Essential competencies in global health research for medical trainees: A narrative review. Medical teacher, , 1-9

Amponsah-Dacosta, Edina; Rakgole, J Nare; Gededzha, Maemu P; Lukhwareni, Azwidowi; Blackard, Jason T; Selabe, Selokela G; Mphahlele, M Jeffrey 2016. Evidence of susceptibility to lamivudine-based HAART and genetic stability of hepatitis B virus (HBV) in HIV co-infected patients: A South African longitudinal HBV whole genome study. Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases, 43 , 232-8

Anderson, Motswedi; Gaseitsiwe, Simani; Moyo, Sikhulile; Thami, Kerapetse P; Mohammed, Terence; Setlhare, Ditiro; Sebunya, Theresa K; Powell, Eleanor A; Makhema, Joseph; Blackard, Jason T; Marlink, Richard; Essex, Max; Musonda, Rosemary M 2016. Slow CD4(+) T-Cell Recovery in Human Immunodeficiency Virus/Hepatitis B Virus-Coinfected Patients Initiating Truvada-Based Combination Antiretroviral Therapy in Botswana. Open forum infectious diseases, 3 3, ofw140

Blackard, Jason T; Ma, Gang; Polen, Clarissa; DuBois, Juwen C; Gast, Jonathon; Radens, Caleb M; Sterling, Richard K; Sherman, Kenneth E 2016. Recombination among GB virus C (GBV-C) isolates in the United States. The Journal of general virology, 97 7, 1537-44

Powell, Eleanor A; Boyce, Ceejay L; Gededzha, Maemu P; Selabe, Selokela G; Mphahlele, M Jeffrey; Blackard, Jason T 2016. Functional analysis of 'a' determinant mutations associated with occult HBV in HIV-positive South Africans. The Journal of general virology, 97 7, 1615-24

Powell, Eleanor A; Razeghi, Sanam; Zucker, Stephen; Blackard, Jason T 2016. Occult Hepatitis B Virus Infection in a Previously Vaccinated Injection Drug User. Hepatitis monthly, 16 2, e34758

Woltmann, Jon; Burke, Patrick; Brady, Rebecca; Blackard, Jason T 2016. Demographics of Hepatitis C in Southwest Ohio (2010 to 2015). Hepatitis monthly, 16 8, e37904

Amponsah-Dacosta, Edina; Lebelo, Ramokone L; Rakgole, J Nare; Selabe, Selokela G; Gededzha, Maemu P; Mayaphi, Simnikiwe H; Powell, Eleanor A; Blackard, Jason T; Mphahlele, M Jeffrey 2015. Hepatitis B virus infection in post-vaccination South Africa: occult HBV infection and circulating surface gene variants. Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology, 63 , 12-7

Anderson, Motswedi; Gaseitsiwe, Simani; Moyo, Sikhulile; Wessels, Matthijs J C; Mohammed, Terence; Sebunya, Theresa K; Powell, Eleanor A; Makhema, Joseph; Blackard, Jason T; Marlink, Richard; Essex, Max; Musonda, Rosemary M 2015. Molecular characterisation of hepatitis B virus in HIV-1 subtype C infected patients in Botswana. BMC infectious diseases, 15 , 335

Powell, Eleanor A; Gededzha, Maemu P; Rentz, Michael; Rakgole, Nare J; Selabe, Selokela G; Seleise, Tebogo A; Mphahlele, M Jeffrey; Blackard, Jason T 2015. Mutations associated with occult hepatitis B in HIV-positive South Africans. Journal of medical virology, 87 3, 388-400

Blackard, Jason T; Ma, Gang; Sengupta, Satarupa; Martin, Christina M; Powell, Eleanor A; Shata, M Tarek; Sherman, Kenneth E 2014. Evidence of distinct populations of hepatitis C virus in the liver and plasma of patients co-infected with HIV and HCV. Journal of medical virology, 86 8, 1332-41

Blackard, Jason T; Ma, Gang; Welge, Jeffrey A; King, Caroline C; Taylor, Lynn E; Mayer, Kenneth H; Klein, Robert S; Celentano, David D; Sobel, Jack D; Jamieson, Denise J; Gardner, Lytt 2014. GB Virus C (GBV-C) Infection in Hepatitis C Virus (HCV) Seropositive Women with or at Risk for HIV Infection. PloS one, 9 12, e114467

Kong, Ling; Welge, Jeffrey A; Powell, Eleanor A; Blackard, Jason T 2014. HIV infection of hepatocytes results in a modest increase in hepatitis C virus expression in vitro. PloS one, 9 2, e83728

Sherman, Kenneth E; Guedj, Jeremie; Shata, Mohamed Tarek; Blackard, Jason T; Rouster, Susan D; Castro, Mario; Feinberg, Judith; Sterling, Richard K; Goodman, Zachary; Aronow, Bruce J; Perelson, Alan S 2014. Modulation of HCV replication after combination antiretroviral therapy in HCV/HIV co-infected patients. Science translational medicine, 6 246, 246ra98

Blackard, Jason T; Kong, Ling; Huber, Amanda K; Tomer, Yaron 2013. Hepatitis C virus infection of a thyroid cell line: implications for pathogenesis of hepatitis C virus and thyroiditis. Thyroid : official journal of the American Thyroid Association, 23 7, 863-70

Blackard, Jason T; Martin, Christina M; Sengupta, Satarupa; Forrester, Janet 2013. Limited infection with occult hepatitis B virus in drug users in the USA. Hepatology research : the official journal of the Japan Society of Hepatology, 43 4, 413-7

Gededzha, Maemu P; Selabe, Selokela G; Blackard, Jason T; Kyaw, Thanda; Mphahlele, M Jeffrey 2013. Near full-length genome analysis of HCV genotype 5 strains from South Africa. Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases, 21C , 118-123

Kong, Ling; Blackard, Jason T 2013. Interferon alfa partially inhibits HIV replication in hepatocytes in vitro. The Journal of infectious diseases, 208 5, 865-6

Mayaphi, Simnikiwe H; Martin, Desmond J; Mphahlele, M Jeffrey; Blackard, Jason T; Bowyer, Sheila M 2013. Variability of the preC/C region of hepatitis B virus genotype A from a South African cohort predominantly infected with HIV. Journal of medical virology, 85 11, 1883-92

Penton, Patricia K; Blackard, Jason T 2013. Analysis of HIV Quasispecies Suggests Compartmentalization in the Liver. AIDS research and human retroviruses, ,

Sengupta, Satarupa; Powell, Eleanor; Kong, Ling; Blackard, Jason T 2013. Effects of HCV on basal and tat-induced HIV LTR activation. PloS one, 8 6, e64956

Blackard, Jason T 2012. HIV compartmentalization: a review on a clinically important phenomenon. Current HIV research, 10 2, 133-42

Blackard, Jason T 2012. HCV superinfection and reinfection. Antiviral therapy, 17 7 Pt B, 1443-8

Blackard, Jason T; Ma, Gang; Welge, Jeffrey A; Martin, Christina M; Sherman, Kenneth E; Taylor, Lynn E; Mayer, Kenneth H; Jamieson, Denise J 2012. Analysis of a non-structural gene reveals evidence of possible hepatitis C virus (HCV) compartmentalization. Journal of medical virology, 84 2, 242-52

Gededzha, Maemu P; Selabe, Selokela G; Kyaw, Thanda; Rakgole, J Nare; Blackard, Jason T; Mphahlele, M Jeffery 2012. Introduction of new subtypes and variants of hepatitis C virus genotype 4 in South Africa. Journal of medical virology, 84 4, 601-7

Kong, Ling; Cardona Maya, Walter; Moreno-Fernandez, Maria E; Ma, Gang; Shata, Mohamed T; Sherman, Kenneth E; Chougnet, Claire; Blackard, Jason T 2012. Low-level HIV infection of hepatocytes. Virology journal, 9 , 157

Martin, C M; Welge, J A; Rouster, S D; Shata, M T; Sherman, K E; Blackard, J T 2012. Mutations associated with occult hepatitis B virus infection result in decreased surface antigen expression in vitro. Journal of viral hepatitis, 19 10, 716-23

Schwarze-Zander, Carolynne; Blackard, Jason T; Rockstroh, Juergen K 2012. Role of GB virus C in modulating HIV disease. Expert review of anti-infective therapy, 10 5, 563-72

Blackard, Jason T; Ma, Gang; Martin, Christina M; Rouster, Susan D; Shata, M Tarek; Sherman, Kenneth E 2011. HIV Variability in the Liver and Evidence of Possible Compartmentalization. AIDS research and human retroviruses, ,

Blackard, Jason T; Welge, Jeffrey A; Taylor, Lynn E; Mayer, Kenneth H; Klein, Robert S; Celentano, David D; Jamieson, Denise J; Gardner, Lytt; Sherman, Kenneth E 2011. HIV mono-infection is associated with FIB-4 - A noninvasive index of liver fibrosis - in women. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 52 5, 674-80

Martin, Christina M; Welge, Jeffrey A; Blackard, Jason T 2011. Hepatitis B virus (HBV) X gene diversity and evidence of recombination in HBV/HIV co-infected persons. Journal of medical virology, 83 7, 1142-50

Neibecker, Markus; Schwarze-Zander, Carolynne; Rockstroh, Jürgen K; Spengler, Ulrich; Blackard, Jason T 2011. Evidence for extensive genotypic diversity and recombination of GB virus C (GBV-C) in Germany. Journal of medical virology, 83 4, 685-94

Taylor, L E; DeLong, A K; Maynard, M A; Chapman, S; Gholam, P; Blackard, J T; Rich, J; Mayer, K H 2011. Acute hepatitis C virus in an HIV clinic: a screening strategy, risk factors, and perception of risk. AIDS patient care and STDs, 25 10, 571-7

Blackard, Jason T; Ma, Gang; Limketkai, Berkeley N; Welge, Jeffrey A; Dryer, Peter D; Martin, Christina M; Hiasa, Yoichi; Taylor, Lynn E; Mayer, Kenneth H; Jamieson, Denise J; Sherman, Kenneth E 2010. Variability of the polymerase gene (NS5B) in hepatitis C virus-infected women. Journal of clinical microbiology, 48 11, 4256-9

Martin, C M; Welge, J A; Shire, N J; Rouster, S D; Shata, M T; Sherman, K E; Blackard, J T 2010. Genomic variability associated with the presence of occult hepatitis B virus in HIV co-infected individuals. Journal of viral hepatitis, 17 8, 588-97

Schwarze-Zander, Carolynne; Neibecker, Markus; Othman, Sabrina; Tural, Cristina; Clotet, Bonaventura; Blackard, Jason T; Kupfer, Bernd; Luechters, Guido; Chung, Ray T; Rockstroh, Jürgen K; Spengler, Ulrich 2010. GB virus C coinfection in advanced HIV type-1 disease is associated with low CCR5 and CXCR4 surface expression on CD4(+) T-cells. Antiviral therapy, 15 5, 745-52

Sherman, Kenneth E; Rouster, Susan D; Stanford, Sandra; Blackard, Jason T; Shire, Norah; Koziel, Margaret; Peters, Marion; Chung, Raymond T 2010. Hepatitis C virus (HCV) quasispecies complexity and selection in HCV/HIV-coinfected subjects treated with interferon-based regimens. The Journal of infectious diseases, 201 5, 712-9

Blackard, Jason T; Rouster, Susan D; Nady, Soad; Galal, Gehan; Marzuuk, Naglaa; Rafaat, Marwaa M; Daef, Enas; El Din, Salwa Seif; Purcell, Robert H; Emerson, Suzanne U; Sherman, Kenneth E; Shata, M Tarek 2009. Genotypic characterization of symptomatic hepatitis E virus (HEV) infections in Egypt. Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology, 46 2, 140-4

Dryer, Peter D; Limketkai, Berkeley N; Martin, Christina M; Ma, Gang; Sherman, Kenneth E; Taylor, Lynn E; Mayer, Kenneth H; Jamieson, Denise J; Blackard, Jason T 2009. Screening for hepatitis C virus non-nucleotide resistance mutations in treatment-naive women. The Journal of antimicrobial chemotherapy, 64 5, 945-8

Martin, Christina M; Welge, Jeffrey A; Shire, Norah J; Shata, Mohamed T; Sherman, Kenneth E; Blackard, Jason T 2009. Cytokine expression during chronic versus occult hepatitis B virus infection in HIV co-infected individuals. Cytokine, 47 3, 194-8

Moreno-Fernandez, Maria E; Zapata, Wildeman; Blackard, Jason T; Franchini, Genoveffa; Chougnet, Claire A 2009. Human regulatory T cells are targets for human immunodeficiency Virus (HIV) infection, and their susceptibility differs depending on the HIV type 1 strain. Journal of virology, 83 24, 12925-33

Akeno, Nagako; Blackard, Jason T; Tomer, Yaron 2008. HCV E2 protein binds directly to thyroid cells and induces IL-8 production: a new mechanism for HCV induced thyroid autoimmunity. Journal of autoimmunity, 31 4, 339-44

Blackard, J T; Sherman, K E 2008. HCV/ HIV co-infection: time to re-evaluate the role of HIV in the liver? Journal of viral hepatitis, 15 5, 323-30

Blackard, Jason T; Shata, M Tarek; Shire, Norah J; Sherman, Kenneth E 2008. Acute hepatitis C virus infection: a chronic problem. Hepatology (Baltimore, Md.), 47 1, 321-31

Blackard, Jason T; Welles, Seth L; Ackerman, Avra; Kalia, Nimisha; Cohen, Daniel E; Mayer, Kenneth H 2008. Immunological rebound after initiation of highly active antiretroviral therapy in treatment-naive patients. AIDS research and human retroviruses, 24 3, 499-504

Blackard, Jason T; Hiasa, Yoichi; Smeaton, Laura; Jamieson, Denise J; Rodriguez, Irma; Mayer, Kenneth H; Chung, Raymond T 2007. Compartmentalization of hepatitis C virus (HCV) during HCV/HIV coinfection. The Journal of infectious diseases, 195 12, 1765-73

Blackard, Jason T; Kang, Minhee; St Clair, J Benjamin; Lin, Wenyu; Kamegaya, Yoshitaka; Sherman, Kenneth E; Koziel, Margaret James; Peters, Marion G; Andersen, Janet; Chung, Raymond T 2007. Viral factors associated with cytokine expression during HCV/HIV co-infection. Journal of interferon & cytokine research : the official journal of the International Society for Interferon and Cytokine Research, 27 4, 263-9

Blackard, Jason T; Sherman, Kenneth E 2007. Hepatitis C virus coinfection and superinfection. The Journal of infectious diseases, 195 4, 519-24

Rutherford, Anna E; Hynan, Linda S; Borges, Carolina B S; Forcione, David G; Blackard, Jason T; Lin, Wenyu; Gorman, April R; Shaikh, Obaid Shakil; Reuben, Adrian; Harrison, Edwyn; Reddy, K Rajender; Le, William M; Chung, Raymond T 2007. Serum apoptosis markers in acute liver failure: a pilot study. Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association, 5 12, 1477-83

Shire, Norah J; Rouster, Susan D; Stanford, Sandra D; Blackard, Jason T; Martin, Christina M; Fichtenbaum, Carl J; Sherman, Kenneth E 2007. The prevalence and significance of occult hepatitis B virus in a prospective cohort of HIV-infected patients. Journal of acquired immune deficiency syndromes (1999), 44 3, 309-14

Tomer, Yaron; Blackard, Jason T; Akeno, Nagako 2007. Interferon alpha treatment and thyroid dysfunction. Endocrinology and metabolism clinics of North America, 36 4, 1051-66; x-xi

Blackard, Jason T; Kang, Minhee; Sherman, Kenneth E; Koziel, Margaret James; Peters, Marion G; Chung, Raymond T 2006. Effects of HCV treatment on cytokine expression during HCV/HIV coinfection. Journal of interferon & cytokine research : the official journal of the International Society for Interferon and Cytokine Research, 26 11, 834-8

Blackard, Jason T; Kemmer, Nyingi; Sherman, Kenneth E 2006. Extrahepatic replication of HCV: insights into clinical manifestations and biological consequences. Hepatology (Baltimore, Md.), 44 1, 15-22

Blackard, Jason T; Komurian-Pradel, Florence; Perret, Magali; Sodoyer, Mireille; Smeaton, Laura; St Clair, J Benjamin; Chapman, Stacey; Taylor, Lynn E; Paranhos-Baccalà, Glaucia; Chung, Raymond T 2006. Intrahepatic cytokine expression is downregulated during HCV/HIV co-infection. Journal of medical virology, 78 2, 202-7

Hiasa, Yoichi; Blackard, Jason T; Lin, Wenyu; Kamegaya, Yoshitaka; Horiike, Norio; Onji, Morikazu; Schmidt, Emmett V; Chung, Raymond T 2006. Cell-based models of sustained, interferon-sensitive hepatitis C virus genotype 1 replication. Journal of virological methods, 132 1-2, 195-203

Koulinska, Irene N; Villamor, Eduardo; Msamanga, Gernard; Fawzi, Wafaie; Blackard, Jason; Renjifo, Boris; Essex, Max 2006. Risk of HIV-1 transmission by breastfeeding among mothers infected with recombinant and non-recombinant HIV-1 genotypes. Virus research, 120 1-2, 191-8

Lin, Wenyu; Kim, Sun Suk; Yeung, Elaine; Kamegaya, Yoshitaka; Blackard, Jason T; Kim, Kyung Ah; Holtzman, Michael J; Chung, Raymond T 2006. Hepatitis C virus core protein blocks interferon signaling by interaction with the STAT1 SH2 domain. Journal of virology, 80 18, 9226-35

Schwarze-Zander, Carolynne; Blackard, Jason T; Zheng, Hui; Addo, Marylyn M; Lin, Wenyu; Robbins, Gregory K; Sherman, Kenneth E; Zdunek, Dietmar; Hess, Georg; Chung, Raymond T 2006. GB virus C (GBV-C) infection in hepatitis C virus (HCV)/HIV-coinfected patients receiving HCV treatment: importance of the GBV-C genotype. The Journal of infectious diseases, 194 4, 410-9

Blackard, Jason T; Smeaton, Laura; Hiasa, Yoichi; Horiike, Norio; Onji, Morikazu; Jamieson, Denise J; Rodriguez, Irma; Mayer, Kenneth H; Chung, Raymond T 2005. Detection of hepatitis C virus (HCV) in serum and peripheral-blood mononuclear cells from HCV-monoinfected and HIV/HCV-coinfected persons. The Journal of infectious diseases, 192 2, 258-65

Kamegaya, Yoshitaka; Hiasa, Yoichi; Zukerberg, Lawrence; Fowler, Nina; Blackard, Jason T; Lin, Wenyu; Choe, Won H; Schmidt, Emmett V; Chung, Raymond T 2005. Hepatitis C virus acts as a tumor accelerator by blocking apoptosis in a mouse model of hepatocarcinogenesis. Hepatology (Baltimore, Md.), 41 3, 660-7

Lin, Wenyu; Choe, Won Hyeok; Hiasa, Yoichi; Kamegaya, Yoshitaka; Blackard, Jason T; Schmidt, Emmett V; Chung, Raymond T 2005. Hepatitis C virus expression suppresses interferon signaling by degrading STAT1. Gastroenterology, 128 4, 1034-41

Blackard, Jason T; Mayer, Kenneth H 2004. HIV superinfection in the era of increased sexual risk-taking. Sexually transmitted diseases, 31 4, 201-4

Blackard, Jason T; Yang, Yijun; Bordoni, Paola; Sherman, Kenneth E; Chung, Raymond T 2004. Hepatitis C virus (HCV) diversity in HIV-HCV-coinfected subjects initiating highly active antiretroviral therapy. The Journal of infectious diseases, 189 8, 1472-81

Meyer-Olson, Dirk; Brady, Kristen W; Blackard, Jason T; Allen, Todd M; Islam, Sabina; Shoukry, Naglaa H; Hartman, Kelly; Walker, Christopher M; Kalams, Spyros A 2003. Analysis of the TCR beta variable gene repertoire in chimpanzees: identification of functional homologs to human pseudogenes. Journal of immunology (Baltimore, Md. : 1950), 170 8, 4161-9

Blackard, Jason T; Cohen, Daniel E; Mayer, Kenneth H 2002. Human immunodeficiency virus superinfection and recombination: current state of knowledge and potential clinical consequences. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 34 8, 1108-14

Blackard, J T; Renjifo, B; Fawzi, W; Hertzmark, E; Msamanga, G; Mwakagile, D; Hunter, D; Spiegelman, D; Sharghi, N; Kagoma, C; Essex, M 2001. HIV-1 LTR subtype and perinatal transmission. Virology, 287 2, 261-5

Blackard, J T; Renjifo, B; Chaplin, B; Msamanga, G; Fawzi, W; Essex, M 2000. Diversity of the HIV-1 long terminal repeat following mother-to-child transmission. Virology, 274 2, 402-11

Blackard, J T; Renjifo, B R; Mwakagile, D; Montano, M A; Fawzi, W W; Essex, M 1999. Transmission of human immunodeficiency type 1 viruses with intersubtype recombinant long terminal repeat sequences. Virology, 254 2, 220-5

Renjifo, B; Blackard, J T; Klaskala, W; Chaplin, B R; Shah, P; McLane, M F; Barin, F; Esparza, J; Zelaya, J E; Osmanov, S; Soto, R; Fernandez, J A; Baum, M K; Essex, M E 1999. HIV-1 subtype B in Honduras. Virus research, 60 2, 191-7

Maeda, N; Kawamura, T; Hoshino, H; Yamada, N; Blackard, J; Kushida, S; Miyano-Kurosaki, N; Yamamoto, N; Makino, K; Yokota, T; Uchida, K; Miwa, M 1998. Inhibition of human T-cell leukemia virus type 1 replication by antisense env oligodeoxynucleotide. Biochemical and biophysical research communications, 243 1, 109-12

Montano, M A; Novitsky, V A; Blackard, J T; Cho, N L; Katzenstein, D A; Essex, M 1997. Divergent transcriptional regulation among expanding human immunodeficiency virus type 1 subtypes. Journal of virology, 71 11, 8657-65

Choudhury, S; Montano, M A; Womack, C; Blackard, J T; Maniar, J K; Saple, D G; Tripathy, S; Sahni, S; Shah, S; Babu, G P; Essex, M . Increased promoter diversity reveals a complex phylogeny of human immunodeficiency virus type 1 subtype C in India. Journal of human virology, 3 1, 35-43