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Hepatitis Health Center

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Signs of Rise in Hepatitis C Cases Among Young

Massachusetts Reports Increase in Hepatitis C in 15- to 24-Year-Olds
WebMD Health News
Reviewed by Laura J. Martin, MD

May 5, 2011 -- Hepatitis C infections are rising among adolescents and young adults in Massachusetts, apparently in part due to needle sharing that spreads the virus, the CDC says in a new report.

There is reason to believe, the researchers write, that this trend may be occurring in other states.

The CDC in collaboration with other state and local health departments is examining hepatitis C virus surveillance data in order to determine whether similar trends are occurring in other areas.

In Massachusetts, a rise in cases in the 15- to 24-year-old age group from 2007 to 2009 occurred most frequently among white people, the CDC says. And the increase was divided about equally among males and females.

Injection drug use was the most common risk factor for transmission. The increase apparently represents an epidemic of hepatitis C related to sharing of needles and a history of drug use via nasal passages, according to the CDC.

The study is published in the CDC’s Morbidity and Mortality Weekly Report for May 6.

Monitoring Hepatitis C

The Massachusetts Department of Public Health uses an electronic data system for disease surveillance. All positive laboratory results indicating hepatitis C infection are reported to the department.

Though an overall decline in rates of newly reported hepatitis C infections was detected between 2002 and 2006, an increase was noted among people 15 to 24. Starting in 2007, Massachusetts state health officials sent hepatitis C infection case report forms to reporting clinicians in an attempt to gather data on new cases among young people 15 to 24.

Between 2002 and 2009, rates of newly reported cases in the 15-24 group rose from 65 to 113 cases per 100,000 people, the CDC says.

Between 2007 and 2009, the Massachusetts Department of Public Health received 1,925 reports of new cases among the young people, 53% of which were confirmed, with the rest classified as probable.

Analysis of data showed that the most common risk was injection drug use. The researchers say that of 1,196 cases with a reported risk history, 860 (72%) were in people who reported current or past use of injectable drugs. And of those, 719 or 84% reported injecting drugs during the previous 12-month period.

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