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Objectives. Both HIV and hepatitis C virus (HCV) can be transmitted through percutaneous exposure to blood in similar high-risk populations. HCV and HIV/AIDS surveillance databases were matched in Colorado, Connecticut, and Oregon to measure the frequency of co-infection and to characterize co- infected people. Methods. We defined a case of HCV infection as a person with a reactive antibody for hepatitis C, medical diagnosis, positive viral-load test result, or positive genotype reported to any of three state health departments from the start of each state's hepatitis C registry through June 30, 2008. We defined a case of HIV/AIDS as a person diagnosed and living with HIV/AIDS at the start of each state's respective hepatitis C registry through June 30, 2008. HIV/AIDS and hepatitis C dataseis were matched using Link King, public domain record linkage and consolidation software, and all potential matches were manually reviewed before acceptance as a match. Results. The proportion of reported hepatitis C cases co-infected with HIV/ AIDS was 1.8% in Oregon, 1.9% in Colorado, and 4.9% in Connecticut. Conversely, the proportion of HIV/AIDS cases co-infected with hepatitis C was consistently higher in the three states: 4.4% in Oregon, 9.7% in Colorado, and 23.6% in Connecticut. Conclusions. Electronic matching of registries is a potentially useful and efficient way to transfer information from one registry to another. In addition, it can provide a measure of.the public health burden of HIV/AIDS and hepatitis C co-infection and provide insight into prevention and medical care needs for respective states. [ABSTRACT FROM AUTHOR]

Objectives: Centers for Disease Control and Prevention has recommended a 1-time HCV test for persons born from 1945 through 1965 to supplement current risk-based screening. We examined indications for testing by birth cohort (before 1945, 1945-1965, and after 1965) among persons with past or current HCV., Methods: Cases had positive HCV laboratory markers reported by 4 surveillance sites (Colorado, Connecticut, Minnesota, and New York) to health departments from 2004 to 2010. Health department staff abstracted demographics and indications for testing from cases' medical records and compiled this information into a surveillance database., Results: Of 110, 223 cases of past or current HCV infection reported during 2004-2010, 74, 578 (68%) were among persons born during 1945-1965. Testing indications were abstracted for 45, 034 (41%) cases; of these, 29 ,544 (66%) identified at least 1 Centers for Disease Control and Prevention-recommended risk factor as a testing indication. Overall, 74% of reported cases were born from 1945 to 1965 or had an injection drug use history., Conclusions: These data support augmenting the current HCV risk-based screening recommendations by screening adults born from 1945 to 1965.