Shortened Vaccination Schedule May Get More Drug Users Immunized

— Christine M. Kukka, Project Manager, HBV Advocate

A study of three U.S. needle-exchange programs finds that an on-site, fast-track hepatitis B immunization dosing schedule may get more injecting drug users protected against infection, according to a report published in the August edition of BMC Public Health.

Many injecting drug users are at high risk of this blood-borne infection, but they are notoriously hard to reach and immunize. First, the hepatitis B vaccination requires three doses, the second delivered 30 days after the first and the third delivered six months later. Secondly, few users are willing to be screened and then return to a clinic for vaccination, even when financial incentives are offered; so researchers hope needle exchange sites could be effective venues for immunizations.

This recent study followed drug users who used needle exchange programs in Chicago and Hartford and Bridgeport, Conn. When the usual vaccination schedule was used among 271 participants, only 141 (52%) returned for the second and third doses.

However when an accelerated vaccination schedule was used (second dose one month after the first and third dose two months later instead of six months later) in 324 participants, 206 (63.6%) returned for all three doses.

Drug users who were older and frailer were more likely to return for immunization. Researchers noted that vaccination rates remain low among younger drug users. "Thus, special attention should be paid to recruiting and retaining younger participants," they wrote.
 
Source: www.ncbi.nlm.nih.gov/pmc/articles/PMC4138371/

http://www.hbvadvocate.org/news/HBJ11.9.htm 

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