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Hepatitis B vaccine less effective in chronic hepatitis C patients.(Brief Article)

Vaccine Weekly

| July 03, 2002 | COPYRIGHT 2002 NewsRX. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

2002 JUL 3 - (NewsRx.com & NewsRx.net) -- by Sonia Nichols, senior medical writer - Although hepatitis B vaccine is somewhat less effective in patients with chronic hepatitis C, interferon-(alpha) therapy appears to make little difference as to whether or not a patient will become protected against hepatitis B virus (HBV) infection after being vaccinated.

A 1-year follow-up study of 48 chronic hepatitis C patients who received vaccinations against HBV was recently completed by researchers at the Medical Academy of Bialystok in Poland. The patients received a standard vaccine on routine vaccination schedules, with a fourth of the patients also receiving interferon-(alpha) therapy during the vaccination period.

"The overall seroprotection at month 7 was 72.9% in hepatitis C patients, compared with 90.9% in the controls," reported S. Chlabicz and colleagues.

By a year and a half after the first vaccine was administered, only a little more than a third of the chronic hepatitis C patients had developed titers high enough to be deemed protective against HBV, whereas all but 10% of a control group had (Hepatitis B vaccine immunogenicity in patients with chronic HCV infection at one year follow-up: The effect of interferon-(alpha) ...

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