Navigation Links
Many high-risk Americans don't get hepatitis B vaccine

PROVIDENCE, R.I. [Brown University] Although there is an effective vaccine for hepatitis B and public health officials have a strong sense of who is at highest risk for the infectious liver disease, tens of thousands of people in the United States contract the virus every year. According to a new study by researchers at Brown University, missed opportunities to administer the vaccine continue to be a reason why infections persist.

"This is a really simple thing that we could do and if somebody ends up getting the disease because we didn't make the effort then I think that's really a shame," said Brian Montague, assistant professor of medicine in the Warren Alpert Medical School of Brown University and a physician at The Miriam Hospital.

Yet in an analysis published Jan. 12, 2012, in advance online in the journal Infection, senior author Montague and lead author Farah Ladak found that in a nationally representative sample of high-risk adults, 51.4 percent said they were unvaccinated. More than half of them had the potential to receive the vaccine based on their reported contact with health care providers.

The study is based on responses by more than 15,000 adults to the 2007 Behavioral Risk Factor Surveillance Survey, which gathers health information from more than 430,000 people across the United States. The respondents in the study's analysis acknowledged engaging in risk behaviors such as certain sexual practices or needle drug use and could definitively report their hepatitis B status. Previous research has found that more than 95 percent new infections in adults occur among people with such behavioral risk factors.

Montague, Ladak, and their co-authors sought to figure out who among this highly vulnerable population was going unvaccinated and whether and where they could have received the three required shots.

They found that vaccinations were relatively infrequent among adults older than 33 (vaccinations have increased markedly in children since the 1990s), among people with less access to health insurance, and among people who have also not been vaccinated against other diseases such as the flu.

But even among people with access to health care, including people who reported specific contact with health care providers, thousands of people went unvaccinated, Ladak said. The study identifies places where improved vaccine delivery would make a substantial difference for instance when people are tested for HIV, such as at the doctor's office, in a hospital or clinic, and especially in jail.

For those infected as adults, hepatitis B does not always result in persistent infection and chronic liver disease, but it is especially likely to do so among people infected with HIV. Such co-infections are common because many of the risk factors for contracting either virus are the same.

"In persons visiting [HIV-testing] locations there was a high prevalence of people who had not received the vaccine," said Ladak, a Brown public health graduate. "One of the areas that really stuck out was jails and prisons. Given that many states have mandates to vaccinate incarcerated individuals, you wonder why in so many of these prisons people have not received vaccinations."

Ladak noted that the new study's figures from 2007 closely mirror similar research published in 2000, suggesting that despite widespread awareness among public health officials that vaccinations have been lacking among adults, there has not been clear progress.

Calls to do better

The study lends additional support to the urging of the Institute of Medicine, which in a 2010 report emphasized the importance of seizing opportunities to vaccinate people for hepatitis B and C. The report suggested that officials have not devoted enough resources to vaccination programs, perhaps because the infections sometimes don't present any symptoms, as a reason for the continued prevalence of the diseases.

Montague said some programs are also structured to ensure missed opportunities. For example, funding for HIV care programs allows testing and vaccination of those who are HIV positive. Funding is often not available, though, for combined screening for hepatitis B together with HIV.

"Given that the risks for HIV, hepatitis B and hepatitis C overlap, what we need is integrated testing and prevention programs and strategies that link those cases identified with effective treatment in the community," Montague said.

Contact: David Orenstein
Brown University

Related biology news :

1. New MRI technique could mean fewer breast biopsies in high-risk women
2. Stand Up to Cancer funds high-risk/high-reward cancer research by 13 young scientists
3. Einstein receives high-risk/high-reward cancer research funding
4. NIH announces 115 awards to encourage high-risk research and innovation
5. Celebrex inhibited the burden of skin cancer in high-risk patients
6. Study links African ancestry to high-risk breast cancer
7. Electronic faucets unsafe for use in high-risk patient hospital settings
8. Zebrafish models identify high-risk genetic features in leukemia patients
9. Nanotech and synbio: Americans dont know whats coming
10. African-Americans aware and accepting, but often do not receive, the HPV vaccine
11. Many middle-aged and older Americans not getting adequate nutrition
Post Your Comments:
Related Image:
Many high-risk Americans don't get hepatitis B vaccine
(Date:10/8/2015)... , October 8, 2015 ... or the "Company"), a biometric authentication company focused ... of the Wocket® smart wallet announces that revenues ... were approximately $410,000 compared with $113,00 for the ... the 9 months ended September 30, 2015 were ...
(Date:10/7/2015)... -- NXTD ) ("NXT-ID" or the "Company"), ... commerce market and creator of the Wocket® smart wallet ... term executive at American Express has been appointed to ... ("NXT-ID" or the "Company"), a biometric authentication company focused ... the Wocket® smart wallet announces Mr. Stanley E. ...
(Date:10/6/2015)... Oct. 6, 2015  Maverix Biomics, Inc., a ... to its software portfolio with the debut of ... differential expression in eukaryotes. The software is integrated ... cloud-based genomic analysis solution that leverages proven open-source ... next-generation sequencing efforts. Garry Nolan,s ...
Breaking Biology News(10 mins):
(Date:10/12/2015)... SAN FRANCISCO , October 12, 2015 ... reach USD 6.49 billion by 2022, according to a new ... can be attributed to rise in incidence of oncology diseases ... detection market is expected to reach USD 6.49 billion ... Research, Inc. This growth in demand can be attributed to ...
(Date:10/12/2015)... - Aeterna Zentaris Inc. (NASDAQ:  AEZS) (TSX: AEZ) (the ... commercializing novel treatments in oncology, endocrinology and women,s health, ... the Company,s former Senior Vice President, Chief Financial Officer, ... City office.  David A. ... the Company commented, "After a comprehensive review, the Company,s ...
(Date:10/12/2015)... , October 12, 2015 ... Dario™ Diabetes Management Solution, today announced its Medical Director, ... case study at MobiHealth,s 5th EAI International Conference ... "Transforming healthcare through innovations in mobile and wireless technologies," ... England from October 14 - 16, 2015. ...
(Date:10/12/2015)... Belgium , Oct. 12, 2015 VolitionRx ... from a completed clinical study of its NuQ ® ... in the online issue of Clinical Epigenetics , the ... was conducted in collaboration with Lund ... Roland Andersson , MD, PhD, Professor of Surgery and Vice-Dean, ...
Breaking Biology Technology: