First things first: balancing hepatitis C and human immunodeficiency virus.

Persons who are coinfected with HIV and hepatitis C virus (HCV) and their providers face a number of dilemmas. These include understanding how the natural history of each virus is affected by the presence of the other, balancing the risks and benefits of treating each of these viral infections, deciding on the order and timing of treatment, and understanding how medication toxicity may be modified in patients with coinfection. Previous studies have addressed the natural history of HCV in HIV-infected patients, but given the long natural history of HCV infection, many of these studies were conducted before the widespread use of HAART [1, 2]. Several recent studies have suggested that HCV infection is an independent predictor of mortality in HIV infection [3‐5], possibly by impeding immune reconstitution after the initiation of HAART [6]. The article by Tedaldi and colleagues [7] in this issue of Clinical Infectious Diseases addresses whether HCV infection alters the morbidity and mortality associated with HIV infection in a cohort of patients during a period when HAART was available. This study found that there were proportionately more deaths among HIVHCV‐coinfected patients than there were among patients infected with HIV alone. However, when the authors adjusted for age, baseline CD4 cell count, and duration of HAART, HCV infection was not an independent predictor of survival. Several differences between the HIVHCV‐coinfected group and the HIVmonoinfected group were notable. HIVHCV‐coinfected patients were more likely to have injection drug use as their HIV transmission risk (69.7% vs. 5.4% of those with HIV infection alone); to be nonwhite, older, and less educated; and to receive care with use of public funds. HIV-HCV‐

[1]  A. Moorman,et al.  Influence of coinfection with hepatitis C virus on morbidity and mortality due to human immunodeficiency virus infection in the era of highly active antiretroviral therapy. , 2003, Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.

[2]  Jonathan AC Sterne,et al.  Prognosis of HIV-1-infected patients starting highly active antiretroviral therapy: a collaborative analysis of prospective studies , 2002, The Lancet.

[3]  Richard D Moore,et al.  Hepatitis C and progression of HIV disease. , 2002, JAMA.

[4]  P. Rosenberg,et al.  Hepatitis C: a hepatologist's approach to an infectious disease. , 2001, Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.

[5]  T. Heeren,et al.  Influence of human immunodeficiency virus infection on the course of hepatitis C virus infection: a meta-analysis. , 2001, Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.

[6]  R. Chaisson,et al.  Differences in HIV disease progression by injection drug use and by sex in the era of highly active antiretroviral therapy , 2001, AIDS.

[7]  S. O’Brien,et al.  Hepatitis C virus load is associated with human immunodeficiency virus type 1 disease progression in hemophiliacs. , 2001, The Journal of infectious diseases.

[8]  M. Battegay,et al.  Clinical progression, survival, and immune recovery during antiretroviral therapy in patients with HIV-1 and hepatitis C virus coinfection: the Swiss HIV Cohort Study , 2000, The Lancet.

[9]  Rey,et al.  Hepatitis C virus co‐infection is a negative prognostic factor for clinical evolution in human immunodeficiency virus‐positive patients , 2000, Journal of viral hepatitis.

[10]  R. Chaisson,et al.  Hepatotoxicity associated with antiretroviral therapy in adults infected with human immunodeficiency virus and the role of hepatitis C or B virus infection. , 2000, JAMA.

[11]  M. Leal,et al.  Human immunodeficiency virus infection modifies the natural history of chronic parenterally-acquired hepatitis C with an unusually rapid progression to cirrhosis. , 1997, Journal of hepatology.

[12]  C. Sabin,et al.  The association between hepatitis C virus genotype and human immunodeficiency virus disease progression in a cohort of hemophilic men. , 1997, The Journal of infectious diseases.

[13]  F. Rosendaal,et al.  The natural history of chronic hepatitis C in haemophiliacs , 1996, British journal of haematology.

[14]  J. Goedert,et al.  Natural history of hepatitis C virus infection in multitransfused hemophiliacs: effect of coinfection with human immunodeficiency virus. The Multicenter Hemophilia Cohort Study. , 1993, Journal of acquired immune deficiency syndromes.