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Tell us what you think about healio news wire alerts rss feeds hepatology welcome, guest sign in for a personal experience. Customized content served to meet your interests. Login all specialties hepatology subspecialties all hepatology autoimmune/cholestatic/biliary diseases chronic hepatitis cirrhosis/liver failure drug metabolism/pharmacology genetic diseases immunology liver injury/regeneration oncology portal hypertension practice management steatohepatitis/metabolic liver disease transplantation viral hepatitis all specialties adolescent medicine allergy/immunology cardiology dermatology endocrinology gastroenterology geriatric medicine health professions hematology/oncology hepatology infectious disease nursing ophthalmology optometry orthopedics orthotics/prosthetics pediatrics psychiatry rheumatology sports medicine news all news meeting news coverage video curbside consultation books meetings meetings/courses meeting news coverage healio › hepatology › chronic hepatitis › news see also patients with diabetes, chronic hcv at elevated risk for... Hcv, hbv coinfection increased risks for cirrhosis, carcinoma... Chronic hcv can increase mortality risk from hepatic... Many hbv, hcv infections remain unidentified in us spradling pr. Clin infect dis. 2012;55:1047-1055. October 3, 2012 almost half of hcv infections and more than 20% of hbv infections may go undiagnosed among people with comprehensive health care, according to a recent study. In an observational cohort study, researchers evaluated data from 867,589 members of four health care organizations (hcos) throughout the united states between january 2006 and december 2008 who had one or more clinic visits and at least 12 months of continuous follow-up. This cohort included 866,886 participants with no previous hbv-related diagnoses and 865,659 with no prior hcv-related diagnoses. Investigators compared the number of infections reported in the cohort with a projected number based on national health and nutrition examination survey (nhanes) data. Among patients who had no prior hbv diagnosis, 18. 8% underwent hbv testing, with positive results seen in 1. generic viagra online viagra without a doctor prescription viagra for sale buy viagra buy viagra online buy viagra buy generic viagra buy viagra online 4% of cases. Among those with no previous hcv diagnosis, 12. 7% were tested, with 5. 5% testing positive. Estimates from nhanes data indicated that at least 43. 1% of those with hcv and 21. 1% of those with hbv in the cohort had not been tested or diagnosed. Hcv infection was more common among patients aged 50 to 59 years (adjusted or=6. 04, 5. 38-6. 77, compared with patients younger than 30 years), while positive hbv test results were significantly more common among asian (adjusted or=6. 33, 5.