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Workowski KA, Bachmann LH, Chan PA, Johnston CM, Muzny CA, Park I, Reno H, Zenilman JM, Bolan GA. Sexually Transmitted Infections Treatment Guidelines, 2021. MMWR Recomm Rep 2021; 70:1-187. [PMID: 34292926 PMCID: PMC8344968 DOI: 10.15585/mmwr.rr7004a1] [Citation(s) in RCA: 737] [Impact Index Per Article: 245.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
These guidelines for the treatment of persons who have or are at risk for
sexually transmitted infections (STIs) were updated by CDC after consultation
with professionals knowledgeable in the field of STIs who met in Atlanta,
Georgia, June 11–14, 2019. The information in this report updates the
2015 guidelines. These guidelines discuss 1) updated recommendations for
treatment of Neisseria gonorrhoeae, Chlamydia trachomatis,
and Trichomonas vaginalis; 2) addition of
metronidazole to the recommended treatment regimen for pelvic inflammatory
disease; 3) alternative treatment options for bacterial vaginosis; 4) management
of Mycoplasma genitalium; 5) human papillomavirus vaccine
recommendations and counseling messages; 6) expanded risk factors for syphilis
testing among pregnant women; 7) one-time testing for hepatitis C infection; 8)
evaluation of men who have sex with men after sexual assault; and 9) two-step
testing for serologic diagnosis of genital herpes simplex virus. Physicians and
other health care providers can use these guidelines to assist in prevention and
treatment of STIs.
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2
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Adeyemi OA, Mitchell A, Shutt A, Crowell TA, Ndembi N, Kokogho A, Ramadhani HO, Robb ML, Baral SD, Ake JA, Charurat ME, Peel S, Nowak RG. Hepatitis B virus infection among men who have sex with men and transgender women living with or at risk for HIV: a cross sectional study in Abuja and Lagos, Nigeria. BMC Infect Dis 2021; 21:654. [PMID: 34229613 PMCID: PMC8259010 DOI: 10.1186/s12879-021-06368-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 06/28/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Despite the development of a safe and efficacious hepatitis B vaccine in 1982, the hepatitis B virus (HBV) remains a public health burden in sub-Saharan Africa. Due to shared risk factors for virus acquisition, men who have sex with men (MSM) and transgender women (TGW) living with HIV are at increased risk of HBV. We estimated the prevalence of HBV and associated factors for MSM and TGW living with or without HIV in Nigeria. METHODS Since March 2013, TRUST/RV368 has recruited MSM and TGW in Abuja and Lagos, Nigeria using respondent driven sampling. Participants with HIV diagnosis, enrollment as of June 2015, and available plasma were selected for a cross-sectional study and retrospectively tested for hepatitis B surface antigen and HBV DNA. Logistic regression models were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for factors associated with prevalent HBV infection. RESULTS A total of 717 MSM and TGW had a median age of 25 years (interquartile range [IQR]: 21-27), 5% self-reported HBV vaccination, 61% were living with HIV, 10% had prevalent HBV infection and 6% were HIV-HBV co-infected. HIV mono-infected as compared to HIV-HBV co-infected had a higher median CD4 T cell count [425 (IQR: 284-541) vs. 345 (IQR: 164-363) cells/mm3, p = 0.03] and a lower median HIV RNA viral load [4.2 (IQR: 2.3-4.9) vs. 4.7 (IQR: 3.9-5.4) log10copies/mL, p < 0.01]. The only factor independently associated with HBV was self-report of condomless sex at last anal intercourse (OR: 2.2, 95% CI: 1.3, 3.6). HIV infection was not independently associated with HBV (OR: 1.0, 95% CI: 0.7-1.6). CONCLUSION HBV prevalence was moderately high but did not differ by HIV in this cohort of MSM and TGW. Recent condomless sex was associated with elevated HBV risk, reinforcing the need to increase communication and education on condom use among key populations in Nigeria. Evaluating use of concurrent HIV antiretroviral therapy with anti-HBV activity may confirm the attenuated HBV prevalence for those living with HIV.
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Affiliation(s)
- Olusegun A Adeyemi
- Department of Epidemiology and Public Health, University of Maryland, School of Medicine, Baltimore, MD, USA.,Institute of Human Virology, University of Maryland, School of Medicine, Baltimore, MD, USA
| | - Andrew Mitchell
- Institute of Human Virology, University of Maryland, School of Medicine, Baltimore, MD, USA
| | - Ashley Shutt
- Institute of Human Virology, University of Maryland, School of Medicine, Baltimore, MD, USA
| | - Trevor A Crowell
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | | | - Afoke Kokogho
- U.S. Army Medical Research Directorate - Africa, Nairobi, Kenya.,HJF Medical Research International, Abuja, Nigeria
| | - Habib O Ramadhani
- Institute of Human Virology, University of Maryland, School of Medicine, Baltimore, MD, USA
| | - Merlin L Robb
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Stefan D Baral
- John Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Julie A Ake
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Manhattan E Charurat
- Institute of Human Virology, University of Maryland, School of Medicine, Baltimore, MD, USA
| | - Sheila Peel
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Rebecca G Nowak
- Department of Epidemiology and Public Health, University of Maryland, School of Medicine, Baltimore, MD, USA. .,Institute of Human Virology, University of Maryland, School of Medicine, Baltimore, MD, USA.
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3
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Nadarzynski T, Frost M, Miller D, Wheldon CW, Wiernik BM, Zou H, Richardson D, Marlow LAV, Smith H, Jones CJ, Llewellyn C. Vaccine acceptability, uptake and completion amongst men who have sex with men: A systematic review, meta-analysis and theoretical framework. Vaccine 2021; 39:3565-3581. [PMID: 34034949 DOI: 10.1016/j.vaccine.2021.05.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/16/2021] [Accepted: 05/04/2021] [Indexed: 01/02/2023]
Abstract
BACKGROUND Due to an increased risk of sexually transmitted infections (STIs), gay, bisexual and other men who have sex with men (MSM) have been recommended to receive vaccinations against human papillomavirus, meningitis C and hepatitis A/B. This review aimed to compare the rates of vaccine acceptability, uptake and completion, and to identify determinants of vaccine outcomes specific to MSM to inform a theoretical framework. METHODS In January 2020 four databases were explored to identify vaccination behaviours and associated factors among MSM. A narrative systematic review and meta-analysis were performed. Data were synthesised for theoretical modelling. RESULTS Seventy-eight studies, mostly from the USA, were included. The average vaccine acceptability was 63% (median = 72%, range: 30%-97%), vaccine uptake 45% (median = 42%, range: 5%-100%) and vaccine completion 47% (median = 45%, range: 12%-89%). Six categories of factors associated with vaccination acceptability, uptake and completion were conceptualised: Individual (e.g., demographic and psychosocial); Interpersonal (e.g., peer education); Healthcare provider (e.g., vaccine recommendation); Organisational and practice setting (e.g., routine collection of patient sexual orientation information that is integrated into a clinical decision support system); Community environment (e.g., targeted health promotion campaigns); and National, state and local policy environment (e.g., public health guidelines targeting MSM). CONCLUSION Despite overall high levels of acceptability, uptake and completion rates were below targets predicted by cost-effectiveness modelling across all recommended vaccines. These parameters may need to be adjusted for more precise estimations of cost-effectiveness. Addressing the multiple levels of determinants, as outlined in our theoretical framework, will help guide interventions to increase vaccine completion among MSM.
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Affiliation(s)
| | - Miles Frost
- The University of Southampton, Southampton, United Kingdom
| | - Danny Miller
- The University of Westminster, London, United Kingdom
| | | | | | - Huachun Zou
- Sun Yat-sen University, School of Public Health, Shenzhen, China
| | - Daniel Richardson
- Brighton & Sussex University Hospitals NHS Trust, Brighton; Brighton & Sussex Medical School, University of Sussex, Falmer, United Kingdom
| | - Laura A V Marlow
- Cancer Prevention Group, School of Cancer and Pharmaceutical Sciences, King's College London, London, United Kingdom
| | - Helen Smith
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore
| | | | - Carrie Llewellyn
- Brighton & Sussex Medical School, University of Sussex, Falmer, United Kingdom
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4
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Msomi N, Naidoo K, Yende-Zuma N, Padayatchi N, Govender K, Singh JA, Abdool-Karim S, Abdool-Karim Q, Mlisana K. High incidence and persistence of hepatitis B virus infection in individuals receiving HIV care in KwaZulu-Natal, South Africa. BMC Infect Dis 2020; 20:847. [PMID: 33198649 PMCID: PMC7670610 DOI: 10.1186/s12879-020-05575-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 10/31/2020] [Indexed: 12/31/2022] Open
Abstract
Background Hepatitis B virus (HBV), Human Immunodeficiency virus (HIV) and Tuberculosis (TB) are common infections in South Africa. We utilized the opportunity of care provision for HIV-TB co-infected patients to better understand the relationship between these coinfections, determine the magnitude of the problem, and identify risk factors for HBV infection in HIV infected patients with and without TB in KwaZulu-Natal, South Africa. Methods This retrospective cohort analysis was undertaken in 2018. In-care HIV infected patients were included in the analysis. Results from clinical records were analysed to determine the prevalence, incidence, persistence and factors associated with HBsAg positivity in HIV-infected patients with or without TB co-infection. Results A total of 4292 HIV-infected patients with a mean age of 34.7 years (SD: 8.8) were included. Based on HBsAg positivity, the prevalence of HBV was 8.5% (363/4292) [95% confidence interval (CI): 7.7–9.3] at baseline and 9.4% (95%CI: 8.6–10.3%) at end of follow-up. The HBV incidence rate was 2.1/100 person-years (p-y). Risk of incident HBV infection was two-fold higher among male patients (HR 2.11; 95% CI: 1.14–3.92), while severe immunosuppression was associated with a greater than two-fold higher risk of persistent infection (adjusted risk ratio (RR) 2.54; 95% CI 1.06–6.14; p = 0.004. Additionally, active TB at enrolment was associated with a two-fold higher risk of incident HBV infection (aHR 2.38; 95% CI: 0.77–7.35). Conclusion The provision of HIV care and treatment in high HBV burden settings provide a missed opportunity for HBV screening, immunization and care provision.
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Affiliation(s)
- Nokukhanya Msomi
- Discipline of Virology-University of KwaZulu-Natal, School of Laboratory Medicine and Medical Sciences and National Health Laboratory Service, Durban, South Africa.
| | - Kogieleum Naidoo
- Centre for the AIDS Programme of Research in South Africa, University of KwaZulu-Natal, Durban, South Africa.,MRC-CAPRISA HIV-TB Pathogenesis and Treatment Research Unit, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Durban, South Africa
| | - Nonhlanhla Yende-Zuma
- Centre for the AIDS Programme of Research in South Africa, University of KwaZulu-Natal, Durban, South Africa.,MRC-CAPRISA HIV-TB Pathogenesis and Treatment Research Unit, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Durban, South Africa
| | - Nesri Padayatchi
- Centre for the AIDS Programme of Research in South Africa, University of KwaZulu-Natal, Durban, South Africa.,MRC-CAPRISA HIV-TB Pathogenesis and Treatment Research Unit, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Durban, South Africa
| | - Kerusha Govender
- Discipline of Virology-University of KwaZulu-Natal, School of Laboratory Medicine and Medical Sciences and National Health Laboratory Service, Durban, South Africa
| | - Jerome Amir Singh
- Centre for the AIDS Programme of Research in South Africa, University of KwaZulu-Natal, Durban, South Africa.,Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - Salim Abdool-Karim
- Centre for the AIDS Programme of Research in South Africa, University of KwaZulu-Natal, Durban, South Africa.,MRC-CAPRISA HIV-TB Pathogenesis and Treatment Research Unit, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Durban, South Africa.,Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, USA
| | - Quarraisha Abdool-Karim
- Centre for the AIDS Programme of Research in South Africa, University of KwaZulu-Natal, Durban, South Africa.,Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, USA
| | - Koleka Mlisana
- National Health Laboratory Service and School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
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5
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Halkitis PN, Maiolatesi AJ, Krause KD. The Health Challenges of Emerging Adult Gay Men: Effecting Change in Health Care. Pediatr Clin North Am 2020; 67:293-308. [PMID: 32122561 PMCID: PMC8690571 DOI: 10.1016/j.pcl.2019.12.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This article focuses on the health and health care challenges experienced by young and emerging adult gay men. Evidence is provided on the extent to which young and emerging adult gay men are disproportionally burdened by multidimensional health disparities, barriers to health care access, and inadequate provider-patient interactions. Recommendations are provided for health care providers and public health officials working with populations of emerging adult gay men that might have the greatest overall impact on improving this population's well-being and access to competent health care by increasing providers' awareness of the unique needs of young and emerging adult gay men.
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Affiliation(s)
- Perry N. Halkitis
- Center for Health, Identity, Behavior & Prevention Studies, Rutgers School of Public Health, One Riverfront Plaza, Newark, NJ 07102, USA,Department of Biostatistics, Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ 08854, USA,Department of Urban-Global Health, Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ 08854, USA,Corresponding author. Departments of Biostatistics, Epidemiology and Urban-Global Health, School of Public Health, Rutgers University, 683 Hoes Lane West, Piscataway, NJ 08854.
| | - Anthony J. Maiolatesi
- Center for Health, Identity, Behavior & Prevention Studies, Rutgers School of Public Health, One Riverfront Plaza, Newark, NJ 07102, USA,Department of Social and Behavioral Sciences, Yale School of Public Health, 60 College Street, New Haven, CT 06510, USA,Center for Interdisciplinary Research on AIDS, Yale University, 135 College Street, New Haven, CT 06510, USA
| | - Kristen D. Krause
- Center for Health, Identity, Behavior & Prevention Studies, Rutgers School of Public Health, One Riverfront Plaza, Newark, NJ 07102, USA,Department of Health Behavior, Society, and Policy, Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ 08854, USA
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6
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Hayden CA, Landrock D, Hung CY, Ostroff G, Fake GM, Walker JH, Kier A, Howard JA. Co-Administration of Injected and Oral Vaccine Candidates Elicits Improved Immune Responses over Either Route Alone. Vaccines (Basel) 2020; 8:E37. [PMID: 31973150 PMCID: PMC7157212 DOI: 10.3390/vaccines8010037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 12/22/2022] Open
Abstract
Infectious diseases continue to be a significant cause of morbidity and mortality, and although efficacious vaccines are available for many diseases, some parenteral vaccines elicit little or no mucosal antibodies which can be a significant problem since mucosal tissue is the point of entry for 90% of pathogens. In order to provide protection for both serum and mucosal areas, we have tested a combinatorial approach of both parenteral and oral administration of antigens for diseases caused by a viral pathogen, Hepatitis B, and a fungal pathogen, Coccidioides. We demonstrate that co-administration by the parenteral and oral routes is a useful tool to increase the overall immune response. This can include achieving an immune response in tissues that are not elicited when using only one route of administration, providing a higher level of response that can lead to fewer required doses or possibly providing a better response for individuals that are considered poor or non-responders.
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Affiliation(s)
- Celine A. Hayden
- Applied Biotechnology Institute, Cal Poly Tech Park, San Luis Obispo, CA 93407, USA; (C.A.H.); (G.M.F.)
| | - Danilo Landrock
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A & M University, College Station, TX 77843, USA; (D.L.); (A.K.)
| | - Chiung Yu Hung
- Department of Biology, University of Texas San Antonio, One UTSA Circle, San Antonio, TX 78249, USA;
| | - Gary Ostroff
- Program in Molecular Medicine, University of Massachusetts Medical School, 373 Plantation St. Biotech 2, Suite 113, Worcester, MA 01605, USA;
| | - Gina M. Fake
- Applied Biotechnology Institute, Cal Poly Tech Park, San Luis Obispo, CA 93407, USA; (C.A.H.); (G.M.F.)
| | - John H. Walker
- Department of Statistics, California Polytechnic State University, San Luis Obispo, CA 93407, USA;
| | - Ann Kier
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A & M University, College Station, TX 77843, USA; (D.L.); (A.K.)
| | - John A. Howard
- Applied Biotechnology Institute, Cal Poly Tech Park, San Luis Obispo, CA 93407, USA; (C.A.H.); (G.M.F.)
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7
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Rossotti R, Puoti M. Sexually Transmitted Hepatitis. Sex Transm Infect 2020. [DOI: 10.1007/978-3-030-02200-6_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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8
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Frew PM, Holloway IW, Goldbeck C, Tan D, Wu E, Jauregui J, Fenimore VL, Randall LA, Lutz CS, Mendel J, Aikin AL, Nowak GJ, Bednarczyk RA. Development of a measure to assess vaccine confidence among men who have sex with men. Expert Rev Vaccines 2018; 17:1053-1061. [PMID: 30433837 PMCID: PMC9993617 DOI: 10.1080/14760584.2018.1541405] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Recent serogroup C meningococcal disease outbreaks led to meningococcal vaccine recommendations for Southern California men who have sex with men (MSM). Assessment of vaccine confidence is critical to improving vaccine coverage in the context of disease outbreaks wherein immunization(s) are recommended. METHODS We surveyed MSM using venue-based sampling and began development of the vaccine confidence index (VCI) with 30 survey items corresponding to trust- and safety-related perceptions. We performed exploratory factor analyses and computed the Cronbach's alpha coefficient to assess internal consistency of the VCI. We created a categorical confidence variable (low, medium, and high confidence) and conducted bivariate and multivariate analyses to evaluate associations with reported confidence and immunization uptake. RESULTS Ten survey items were included in the final VCI and formed the confidence measure. Participants with low confidence had the lowest levels of reported uptake for both meningococcal vaccines. Confidence differed significantly (p ≤ 0.05) between MSM who indicated they received vaccines recommended within the context of the outbreak and those who did not. CONCLUSIONS Our VCI is sensitive to a number of issues that may influence vaccine confidence. It is useful for assessing MSM trust and acceptance of recommended immunizations and may be used to inform intervention development.
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Affiliation(s)
- Paula M Frew
- a Department of Medicine, Division of Infectious Diseases , Emory University School of Medicine , Atlanta , GA , USA.,b Rollins School of Public Health, Hubert Department of Global Health , Emory University , Atlanta , GA , USA.,c Emory Center for AIDS Research , Atlanta , GA , USA
| | - Ian W Holloway
- d Department of Social Welfare , UCLA Luskin School of Public Affairs , Los Angeles , CA , USA.,e UCLA Center for AIDS Research , Los Angeles , CA , USA.,f California HIV/AIDS Policy Research Center , Los Angeles , CA , USA
| | - Cameron Goldbeck
- d Department of Social Welfare , UCLA Luskin School of Public Affairs , Los Angeles , CA , USA.,f California HIV/AIDS Policy Research Center , Los Angeles , CA , USA
| | - Diane Tan
- d Department of Social Welfare , UCLA Luskin School of Public Affairs , Los Angeles , CA , USA
| | - Elizabeth Wu
- d Department of Social Welfare , UCLA Luskin School of Public Affairs , Los Angeles , CA , USA
| | - Juan Jauregui
- d Department of Social Welfare , UCLA Luskin School of Public Affairs , Los Angeles , CA , USA
| | - Vincent L Fenimore
- b Rollins School of Public Health, Hubert Department of Global Health , Emory University , Atlanta , GA , USA
| | - Laura A Randall
- a Department of Medicine, Division of Infectious Diseases , Emory University School of Medicine , Atlanta , GA , USA
| | - Chelsea S Lutz
- a Department of Medicine, Division of Infectious Diseases , Emory University School of Medicine , Atlanta , GA , USA
| | - Judith Mendel
- g Health and Human Services , National Vaccine Program Office , Washington , DC , USA
| | - Ann L Aikin
- g Health and Human Services , National Vaccine Program Office , Washington , DC , USA
| | - Glen J Nowak
- h University of Georgia Grady College of Journalism and Mass Communication , Athens , GA , USA
| | - Robert A Bednarczyk
- b Rollins School of Public Health, Hubert Department of Global Health , Emory University , Atlanta , GA , USA.,i Emory Vaccine Center , Atlanta , GA , USA
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9
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Truong HHM, Fatch R, Do TD, McFarland W. Hepatitis B Vaccination and Infection Prevalence Among Men Who Have Sex With Men Who Travel Internationally. Sex Transm Dis 2018; 45:e25-e28. [PMID: 29465694 PMCID: PMC5908219 DOI: 10.1097/olq.0000000000000743] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Among men who have sex with men traveling internationally, self-reported hepatitis B virus (HBV) vaccination prevalence was 77% and less prevalent among older men and those with HBV infection. The HBV infection prevalence was 25% and was associated with older age and HIV infection. Testing for chronic infection, universal vaccination, and treatment for populations with multiple risks is needed.
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Affiliation(s)
- Hong-Ha M. Truong
- University of California, San Francisco, 94158, USA
- Gladstone Institutes, San Francisco, 94158, USA
| | - Robin Fatch
- University of California, San Francisco, 94158, USA
| | - Tri D. Do
- University of California, San Francisco, 94158, USA
- Asian & Pacific Islander Wellness Center, San Francisco, 94109, USA
| | - Willi McFarland
- University of California, San Francisco, 94158, USA
- Department of Public Health, San Francisco, 94102, USA
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10
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Ethnic Disparities in Chronic Hepatitis B Infection: African Americans and Hispanic Americans. ACTA ACUST UNITED AC 2017; 16:105-112. [PMID: 29308354 DOI: 10.1007/s11901-017-0348-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Chronic infection with hepatitis B affects more than 240 million persons worldwide and is a major public health concern. Despite national and global initiatives to promote hepatitis B elimination, including newborn vaccination, catch up vaccination in adolescents and high-risk adults, screening of the blood supply and treatment of those in need, both new infections and a reservoir of chronic infections continue to result in morbidity and mortality. As with many chronic diseases, racial and ethnic disparities are seen in hepatitis B virus infection. Purpose of Review The goal of this review is to synthesize the data concerning the burden of hepatitis B infection in African Americans and Hispanics, two racial/ethnic groups in the United States who encounter barriers in access to care, low engagement in care and low utilization of diagnostic and treatment services. Recent Findings Recent data, though sparse in certain areas, continue to suggest differences in rates of incidence and prevalence of hepatitis B virus infection in African Americans, and differences in screening, specialty referral and initiation of therapy for African Americans and Hispanics. Data are lacking about differences in liver disease progression and manifestations in both African Americans and Hispanics. Summary Disparities in hepatitis B diagnosis, disease management, treatment and prevention remain for African Americans and Hispanics. These disparities require a commitment from governmental and public health organizations. The efforts should include increasing vaccination in those most susceptible to infection, screening those at highest risk for infection, initiating antiviral therapy in those who require it and monitoring for liver-related complications, such as decompensated cirrhosis and hepatocellular carcinoma in the chronically infected. This multi-pronged approach is necessary to realize hepatitis B elimination.
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11
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Inoue T, Tanaka Y. Hepatitis B virus and its sexually transmitted infection - an update. MICROBIAL CELL 2016; 3:420-437. [PMID: 28357379 PMCID: PMC5354569 DOI: 10.15698/mic2016.09.527] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Epidemiology: incidence and prevalence:
About 5% of the world’s population has chronic hepatitis B virus (HBV)
infection, and nearly 25% of carriers develop chronic hepatitis, cirrhosis, and
hepatocellular carcinoma (HCC). The prevalence of chronic HBV infection in human
immunodeficiency virus (HIV)-infected individuals is 5%-15%; HIV/HBV coinfected
individuals have a higher level of HBV replication, with higher rates of
chronicity, reactivation, occult infection, and HCC than individuals with HBV
only. The prevalence of HBV genotype A is significantly higher among men who
have sex with men (MSM), compared with the rest of the population.
Molecular mechanisms of infection, pathology, and
symptomatology: HBV replication begins with entry into the
hepatocyte. Sodium taurocholate cotransporting polypeptide was identified in
2012 as the entry receptor of HBV. Although chronic hepatitis B develops slowly,
HIV/HBV coinfected individuals show more rapid progression to cirrhosis and HCC.
Transmission and protection: The most common sources
of HBV infection are body fluids. Hepatitis B (HB) vaccination is recommended
for all children and adolescents, and all unvaccinated adults at risk for HBV
infection (sexually active individuals such as MSM, individuals with
occupational risk, and immunosuppressed individuals). Although HB vaccination
can prevent clinical infections (hepatitis), it cannot prevent 100% of
subclinical infections. Treatment and curability:
The goal of treatment is reducing the risk of complications
(cirrhosis and HCC). Pegylated interferon alfa and nucleos(t)ide analogues (NAs)
are the current treatments for chronic HBV infection. NAs have improved the
outcomes of patients with cirrhosis and HCC, and decreased the incidence of
acute liver failure.
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Affiliation(s)
- Takako Inoue
- Clinical Laboratory, Nagoya City University Hospital, Nagoya, Japan
| | - Yasuhito Tanaka
- Clinical Laboratory, Nagoya City University Hospital, Nagoya, Japan. ; Department of Virology & Liver unit, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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12
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La Torre G, Mannocci A, Saulle R, Colamesta V, Meggiolaro A, Mipatrini D, Sinopoli A. Economic evaluation of HBV vaccination: A systematic review of recent publications (2000-2013). Hum Vaccin Immunother 2016; 12:2299-311. [PMID: 27105443 DOI: 10.1080/21645515.2016.1166328] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
AIM To conduct a systematic review of the economic evaluations (EE) of HBV vaccination, taking also into account the studies published in the new millennium. METHODS An extensive scientific literature review was conducted using two electronic medical journal databases: Scopus and PubMed engines for published studies on EE of HBV vaccination. RESULTS 22 articles were reviewed, 9, 5 and 8 cost-effectiveness, cost-benefit and cost-utility analysis, respectively. Studies were mainly concerning EE of universal vaccination (UV), mostly with regards to low or low-medium income countries. For high income countries, EE were focused on the possible implementation of HBV vaccination in particular settings, such as diabetic, renal and other chronic conditions care, as well as infectious diseasesUV has usually a very good cost-effectiveness ratio (80%), ranging from cost-saving (China) or few Euro per LY/QALY gained (in Thailand, and Vietnam) to 630.00$/QALY in USA (Asian and Pacific Islands) Moreover, EE of HBV vaccination are favorable in the infectious diseases field as well as for chronic conditions. In relation to diabetes the studies gave controversial results. CONCLUSION This systematic review highlighted the importance of introducing HBV vaccination not only for infant UV program but also for other settings in which patients are people affected by communicable and non-communicable diseases.
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Affiliation(s)
- Giuseppe La Torre
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
| | - Alice Mannocci
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
| | - Rosella Saulle
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
| | - Vittoria Colamesta
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
| | - Angela Meggiolaro
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
| | - Daniele Mipatrini
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
| | - Alessandra Sinopoli
- a Department of Public Health and Infectious Diseases , Sapienza University of Rome , Rome , Italy
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13
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Jones J, Poole A, Lasley-Bibbs V, Johnson M. LGBT health and vaccinations: Findings from a community health survey of Lexington-Fayette County, Kentucky, USA. Vaccine 2016; 34:1909-14. [DOI: 10.1016/j.vaccine.2016.02.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 02/15/2016] [Accepted: 02/17/2016] [Indexed: 10/22/2022]
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14
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Falade-Nwulia O, Seaberg EC, Snider AE, Rinaldo CR, Phair J, Witt MD, Thio CL. Incident Hepatitis B Virus Infection in HIV-Infected and HIV-Uninfected Men Who Have Sex With Men From Pre-HAART to HAART Periods: A Cohort Study. Ann Intern Med 2015; 163:673-80. [PMID: 26457744 PMCID: PMC4630157 DOI: 10.7326/m15-0547] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Men who have sex with men (MSM) are at high risk for hepatitis B virus (HBV) infection. Data on the effect of highly active antiretroviral therapy (HAART) on incident HBV infection in HIV-infected and HIV-uninfected MSM are limited. OBJECTIVE To determine predictors of incident HBV infection in MSM during pre-HAART and HAART periods. DESIGN Observational cohort study. SETTING Cohort of MSM who have, or are at risk for, HIV infection. PATIENTS 2375 HBV-uninfected MSM in the Multicenter AIDS Cohort Study. MEASUREMENTS Poisson regression was used to compare incidence rates of HBV infection in the pre-HAART and HAART eras and to identify factors associated with incidence of HBV infection. RESULTS In 25,322 person-years of follow-up, 244 incident HBV infections occurred. The unadjusted incidence rate was higher in HIV-infected MSM than in HIV-uninfected MSM (incidence rate ratio [IRR], 1.9 [95% CI, 1.5 to 2.4]) and was significantly lower in the HAART era than in the pre-HAART era among HIV-infected (IRR, 0.2 [CI, 0.1 to 0.4]) and HIV-uninfected (IRR, 0.3 [CI, 0.2 to 0.4]) MSM. Age younger than 40 years (IRR, 2.3 [CI, 1.7 to 3.0]), more than 1 recent sexual partner (IRR, 3.1 [CI, 2.3 to 4.2]), and HIV infection (IRR, 2.4 [CI, 1.8 to 3.1]) were independently associated with higher incidence of HBV infection, whereas HBV vaccination was protective (IRR, 0.3 [CI, 0.2 to 0.4]). Highly active antiretroviral therapy with HIV RNA levels less than 400 copies/mL was associated with protection (IRR, 0.2 [CI, 0.1 to 0.5]), but HAART in those with HIV RNA levels of 400 copies/mL or greater was not. LIMITATION The observational nature limits inferences about causality. CONCLUSION Effective HAART is associated with lower incidence of HBV infection; however, even in the HAART era, incidence of HBV infection remains high among MSM. PRIMARY FUNDING SOURCE National Institute of Allergy and Infectious Diseases.
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Affiliation(s)
- Oluwaseun Falade-Nwulia
- From Johns Hopkins University, Baltimore, Maryland; University of Pittsburgh, Pittsburgh, Pennsylvania; Feinberg School of Medicine, Northwestern University, Chicago, Illinois; and Los Angeles Biomedical Research Institute at Harbor–University of California, Los Angeles Medical Center, Torrance, California
| | - Eric C. Seaberg
- From Johns Hopkins University, Baltimore, Maryland; University of Pittsburgh, Pittsburgh, Pennsylvania; Feinberg School of Medicine, Northwestern University, Chicago, Illinois; and Los Angeles Biomedical Research Institute at Harbor–University of California, Los Angeles Medical Center, Torrance, California
| | - Anna E. Snider
- From Johns Hopkins University, Baltimore, Maryland; University of Pittsburgh, Pittsburgh, Pennsylvania; Feinberg School of Medicine, Northwestern University, Chicago, Illinois; and Los Angeles Biomedical Research Institute at Harbor–University of California, Los Angeles Medical Center, Torrance, California
| | - Charles R. Rinaldo
- From Johns Hopkins University, Baltimore, Maryland; University of Pittsburgh, Pittsburgh, Pennsylvania; Feinberg School of Medicine, Northwestern University, Chicago, Illinois; and Los Angeles Biomedical Research Institute at Harbor–University of California, Los Angeles Medical Center, Torrance, California
| | - John Phair
- From Johns Hopkins University, Baltimore, Maryland; University of Pittsburgh, Pittsburgh, Pennsylvania; Feinberg School of Medicine, Northwestern University, Chicago, Illinois; and Los Angeles Biomedical Research Institute at Harbor–University of California, Los Angeles Medical Center, Torrance, California
| | - Mallory D. Witt
- From Johns Hopkins University, Baltimore, Maryland; University of Pittsburgh, Pittsburgh, Pennsylvania; Feinberg School of Medicine, Northwestern University, Chicago, Illinois; and Los Angeles Biomedical Research Institute at Harbor–University of California, Los Angeles Medical Center, Torrance, California
| | - Chloe L. Thio
- From Johns Hopkins University, Baltimore, Maryland; University of Pittsburgh, Pittsburgh, Pennsylvania; Feinberg School of Medicine, Northwestern University, Chicago, Illinois; and Los Angeles Biomedical Research Institute at Harbor–University of California, Los Angeles Medical Center, Torrance, California
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15
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Workowski KA, Bolan GA. Sexually transmitted diseases treatment guidelines, 2015. MMWR Recomm Rep 2015; 64:1-137. [PMID: 26042815 PMCID: PMC5885289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2023] Open
Abstract
These guidelines for the treatment of persons who have or are at risk for sexually transmitted diseases (STDs) were updated by CDC after consultation with a group of professionals knowledgeable in the field of STDs who met in Atlanta on April 30-May 2, 2013. The information in this report updates the Sexually Transmitted Diseases Treatment Guidelines, 2010 (MMWR Recomm Rep 2010;59 [No. RR-12]). These updated guidelines discuss 1) alternative treatment regimens for Neisseria gonorrhoeae; 2) the use of nucleic acid amplification tests for the diagnosis of trichomoniasis; 3) alternative treatment options for genital warts; 4) the role of Mycoplasma genitalium in urethritis/cervicitis and treatment-related implications; 5) updated HPV vaccine recommendations and counseling messages; 6) the management of persons who are transgender; 7) annual testing for hepatitis C in persons with HIV infection; 8) updated recommendations for diagnostic evaluation of urethritis; and 9) retesting to detect repeat infection. Physicians and other health-care providers can use these guidelines to assist in the prevention and treatment of STDs.
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Affiliation(s)
- Kimberly A. Workowski
- Division of STD Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention
- Emory University, Atlanta, Georgia
| | - Gail A. Bolan
- Division of STD Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention
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16
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Pitasi MA, Bingham TA, Sey EK, Smith AJ, Teshale EH. Hepatitis B virus (HBV) infection, immunity and susceptibility among men who have sex with men (MSM), Los Angeles County, USA. AIDS Behav 2014; 18 Suppl 3:248-55. [PMID: 24276792 DOI: 10.1007/s10461-013-0670-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Men who have sex with men (MSM) bear a disproportionate burden of hepatitis B virus (HBV) infections. We used serologic data from the National HIV Behavioral Surveillance (NHBS) system to determine the prevalence and correlates of HBV infection, immunization, and susceptibility in a sample of Los Angeles County MSM. Approximately 19 % (95 % CI 15-24 %) had serologic evidence of current or past infection, while 35 % (95 % CI 30-40 %) were susceptible. Compared with the youngest age group, MSM ages 40-49 years had a lower prevalence of immunization (aPR 0.28, 95 % CI 0.17-0.45) and a higher prevalence of infection (aPR 8.53, 95 % CI 3.95-18.4) and susceptibility (aPR 2.02, 95 % CI 1.13-3.63). We also observed poor concordance between self-reported and serologic measures of vaccination. Our results indicate the possibility of missed opportunities to vaccinate MSM. Gaps in implementing existing vaccination strategies must be addressed to increase hepatitis B vaccination coverage for MSM, especially in older age groups.
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17
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Hepatitis B vaccination and screening awareness in primary care practitioners. HEPATITIS RESEARCH AND TREATMENT 2014; 2014:373212. [PMID: 24729872 PMCID: PMC3963216 DOI: 10.1155/2014/373212] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Accepted: 01/10/2014] [Indexed: 11/17/2022]
Abstract
Introduction. The goals of Healthy People US 2020 have called for increased screening and vaccination of high-risk groups for Hepatitis B (HBV). Methods. We performed a survey of 400 randomly chosen primary care practitioners (PCPs) in Wisconsin to assess their knowledge, attitudes, and practices regarding screening and vaccination for HBV. Results. Screening rates of patients at risk of sexual transmission were low, with 61% of respondents stating that they screen patients who had more than 1 sex partner in 6 months and 86% screening patients with a history of sex with prostitutes. Screening rate for persons with a history of intravenous drug use was 94%. Children of immigrants were screened by 65%, persons on hemodialysis by 73%, and prison inmates by 69%. Screening increased with provider experience with HBV. Deficiencies in vaccination rates mirrored screening practices. Major barriers to screening were cost, someone else's responsibility, time constraints, or lack of knowledge. Conclusions. Without improved education and practices of PCPs about HBV screening and vaccination, the goals of healthy people 2020 regarding HBV will not be met. Barriers to screening and vaccination need to be addressed. Cost-effectiveness of alternative strategies such as universal vaccination under the age of 50 should be explored.
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18
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Hayden CA, Smith EM, Turner DD, Keener TK, Wong JC, Walker JH, Tizard IR, Jimenez-Flores R, Howard JA. Supercritical fluid extraction provides an enhancement to the immune response for orally-delivered hepatitis B surface antigen. Vaccine 2014; 32:1240-6. [PMID: 24486361 DOI: 10.1016/j.vaccine.2014.01.037] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 12/27/2013] [Accepted: 01/14/2014] [Indexed: 01/27/2023]
Abstract
The hepatitis B virus continues to be a major pathogen worldwide despite the availability of an effective parenteral vaccine for over 20 years. Orally-delivered subunit vaccines produced in maize may help to alleviate the disease burden by providing a low-cost, heat-stable alternative to the parenteral vaccine. Oral subunit vaccination has been an elusive goal due to the large amounts of antigen required to induce an immunologic response when administered through the digestive tract. Here we show that high levels of HBsAg were obtained in maize grain, the grain was formed into edible wafers, and wafers were fed to mice at a concentration of approximately 300 μg/g. When these wafers were made with supercritical fluid extraction (SFE)-treated maize material, robust IgG and IgA responses in sera were observed that were comparable to the injected commercial vaccine (Recombivax(®)). In addition, all mice administered SFE wafers showed high secretory IgA titers in fecal material whereas Recombivax(®) treated mice showed no detectable titer. Increased salivary IgA titers were also detected in SFE-fed mice but not in Recombivax(®) treated mice. Wafers made from hexane-treated or full fat maize material induced immunologic responses, but fecal titers were attenuated relative to those produced by SFE-treated wafers. These responses demonstrate the feasibility of using a two-dose oral vaccine booster in the absence of an adjuvant to induce immunologic responses in both sera and at mucosal surfaces, and highlight the potential limitations of using an exclusively parenteral dosing regime.
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Affiliation(s)
- Celine A Hayden
- Applied Biotechnology Institute, Cal Poly Tech Park, San Luis Obispo, CA 93407, USA
| | - Emily M Smith
- Applied Biotechnology Institute, Cal Poly Tech Park, San Luis Obispo, CA 93407, USA
| | - Debra D Turner
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, TX 77843, USA
| | - Todd K Keener
- Applied Biotechnology Institute, Cal Poly Tech Park, San Luis Obispo, CA 93407, USA
| | - Jeffrey C Wong
- Horticulture and Crop Science Department, California Polytechnic State University, San Luis Obispo, CA 93407, USA
| | - John H Walker
- Department of Statistics, California Polytechnic State University, San Luis Obispo, CA 93407, USA
| | - Ian R Tizard
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, TX 77843, USA
| | - Rafael Jimenez-Flores
- Dairy Product Technology Center, California Polytechnic State University, San Luis Obispo, CA 93407, USA
| | - John A Howard
- Applied Biotechnology Institute, Cal Poly Tech Park, San Luis Obispo, CA 93407, USA.
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19
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Abstract
Identification and vaccination of adults at risk for hepatitis B virus acquisition through sexual contact is a key strategy to reduce new hepatitis B virus infections among at-risk adults. Hepatitis C has emerged as a sexually transmitted infection among men with male sex partners (MSM). Several biological and behavioral factors have been linked to hepatitis C virus transmission among MSM, including human immunodeficiency virus coinfection; participation in sexual practices that result in mucosal damage or result in exposure to blood; presence of sexually transmitted diseases (STIs), particularly ulcerative STIs; multiple/casual sex partners; and unprotected anal intercourse.
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Affiliation(s)
- Linda Gorgos
- Special Immunology Associates, El Rio Health Center, 1701 West St Mary's Road, Suite 160, Tucson, AZ 85745, USA.
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20
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Xiridou M, van Houdt R, Hahné S, Coutinho R, van Steenbergen J, Kretzschmar M. Hepatitis B vaccination of men who have sex with men in the Netherlands: should we vaccinate more men, younger men or high-risk men? Sex Transm Infect 2013; 89:666-71. [PMID: 23812794 DOI: 10.1136/sextrans-2012-050900] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVES The selective vaccination programme against hepatitis B virus (HBV) was introduced in the Netherlands in 2002 targeting high-risk groups, including men who have sex with men (MSM). Despite the high average age of vaccination in MSM, the number of notifications of acute HBV recently declined. We investigate whether this can be attributed to the selective vaccination programme. We examine how vaccination strategies could be improved and the impact of universal infant vaccination introduced in 2011. METHODS We use a mathematical model for HBV transmission among MSM. The incidence of HBV was calculated from the model and from notification data of acute HBV. RESULTS A decline was observed in the incidence of HBV since 2006, as calculated from the model; this decline was smaller than that observed in data if all MSM were equally likely to be vaccinated. Assuming that high-risk MSM were more likely to be vaccinated than low-risk MSM resulted in a steeper decline in modelled incidence and better agreement with observed incidence. Vaccinating MSM at a younger age or doubling the vaccination rate would increase the impact of selective vaccination, but is less effective than vaccinating high-risk MSM. CONCLUSIONS Selective HBV vaccination of MSM in the Netherlands has had a substantial impact in reducing HBV incidence. The reduction suggests that vaccination rates among high-risk MSM were higher than those among low-risk MSM. Countries that have not yet reached 35-year cohorts with universal childhood vaccination should actively implement or continue selective high-risk MSM vaccination.
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Affiliation(s)
- Maria Xiridou
- Centre for Infectious Disease Control, National Institute of Public Health and the Environment, , Bilthoven, The Netherlands
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21
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Zohrabyan L, Johnston L, Scutelniciuc O, Iovita A, Todirascu L, Costin T, Plesca V, Cotelnic-Harea T, Ionascu G. HIV, hepatitis and syphilis prevalence and correlates of condom use during anal sex among men who have sex with men in the Republic of Moldova. Int J STD AIDS 2013; 24:357-64. [PMID: 23970702 DOI: 10.1177/0956462412472808] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Limited data on HIV prevalence and related risks among men who have sex with men (MSM) exist in the Republic of Moldova. In Chisinau and Balti, 188 and 209, respectively, men who reported having anal or oral sex in the last six months with another man, aged ≥16 years were recruited into a study in 2010 using respondent-driven sampling methods. MSM reported having multiple male and female partners and inconsistent condom use. In Chisinau, 2% of MSM were HIV seropositive, 3.7% had antibodies to hepatitis C (HCV), 5.7% had antibodies to hepatitis B (HBV) and 12.1% had syphilis. In Balti, less than 1% of MSM were HIV seropositive, 1.2% had antibodies to HCV, 3.2% had antibodies to HBV and only 0.5% had syphilis. MSM who used a condom at last anal sex with a man were less likely to reside in Chisinau, to have casual sex partners and to have had an HIV test in the last year and were more likely to know where to get an HIV test. Although HIV prevalence was low, MSM practice a number of risky sexual behaviours that may heighten the risk of further HIV transmission in this population and to the wider population.
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Affiliation(s)
- L Zohrabyan
- UNAIDS Regional Support Team, Moscow, Russia
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22
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Prevalence and factors associated with hepatitis B immunization and infection among men who have sex with men in Beijing, China. PLoS One 2012; 7:e48219. [PMID: 23133573 PMCID: PMC3485055 DOI: 10.1371/journal.pone.0048219] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Accepted: 09/26/2012] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Among the Chinese population of 1.3 billion, there are an estimated 93 million carriers of hepatitis B virus (HBV). Men who have sex with men (MSM) are at increased risk for HBV infection; however, the prevalence of HBV immunization and infection among Chinese MSM remains undetermined. METHODS A cross-sectional survey of 1,114 eligible participants was conducted in Beijing, China. Multiple methods were used to recruit study participants. Demographic information and potential correlated factors were collected by questionnaire. Additionally, blood specimens were collected and tested for sexually transmitted infections and serologic markers of hepatitis B immunization and infection. RESULTS Laboratory data were available for 1,111 participants (99.7%), the prevalence of hepatitis B immunization was 38.9%, and 26.5% had serologic markers of HBV infection. Multivariate analyses indicated that higher education level, smaller number of male sex partners in the past 12 months, reported diagnosis of sexually transmitted disease (STD), and history of blood donation were independently associated with HBV immunization. Absence of steady male sex partner(s) in the past 12 months, and reported diagnosis of STD were shown to be independently associated with HBV infection. MSM positive for HBV infection were more likely to have past or current syphilis infection. CONCLUSIONS Low prevalence of HBV immunization and high prevalence of HBV infection among Chinese MSM and a correlation between sexual risk factors and hepatitis B infection indicate that comprehensive preventative measures for HBV among MSM, including blood donor and HIV-STD clinic vaccination programs as well as targeted health education campaigns should be developed in China.
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Rossi C, Shrier I, Marshall L, Cnossen S, Schwartzman K, Klein MB, Schwarzer G, Greenaway C. Seroprevalence of chronic hepatitis B virus infection and prior immunity in immigrants and refugees: a systematic review and meta-analysis. PLoS One 2012; 7:e44611. [PMID: 22957088 PMCID: PMC3434171 DOI: 10.1371/journal.pone.0044611] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Accepted: 08/06/2012] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND International migrants experience increased mortality from hepatocellular carcinoma compared to host populations, largely due to undetected chronic hepatitis B infection (HBV). We conducted a systematic review of the seroprevalence of chronic HBV and prior immunity in migrants arriving in low HBV prevalence countries to identify those at highest risk in order to guide disease prevention and control strategies. METHODS AND FINDINGS Medline, Medline In-Process, EMBASE and the Cochrane Database of Systematic Reviews were searched. Studies that reported HBV surface antigen or surface antibodies in migrants were included. The seroprevalence of chronic HBV and prior immunity were pooled by region of origin and immigrant class, using a random-effects model. A random-effects logistic regression was performed to explore heterogeneity. The number of chronically infected migrants in each immigrant-receiving country was estimated using the pooled HBV seroprevalences and country-specific census data. A total of 110 studies, representing 209,822 immigrants and refugees were included. The overall pooled seroprevalence of infection was 7.2% (95% CI: 6.3%-8.2%) and the seroprevalence of prior immunity was 39.7% (95% CI: 35.7%-43.9%). HBV seroprevalence differed significantly by region of origin. Migrants from East Asia and Sub-Saharan Africa were at highest risk and migrants from Eastern Europe were at an intermediate risk of infection. Region of origin, refugee status and decade of study were independently associated with infection in the adjusted random-effects logistic model. Almost 3.5 million migrants (95% CI: 2.8-4.5 million) are estimated to be chronically infected with HBV. CONCLUSIONS The seroprevalence of chronic HBV infection is high in migrants from most world regions, particularly among those from East Asia, Sub-Saharan Africa and Eastern Europe, and more than 50% were found to be susceptible to HBV. Targeted screening and vaccination of international migrants can become an important component of HBV disease control efforts in immigrant-receiving countries.
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Affiliation(s)
- Carmine Rossi
- Centre for Clinical Epidemiology and Community Studies of the Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada.
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24
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Abstract
BACKGROUND HIV-infected men who have sex with men (MSM) are at increased risk of viral hepatitis because of similar behavioral risk factors for acquisition of these infections. Our objective was to estimate adherence to HIV management guidelines that recommend screening HIV-infected persons for hepatitis A, B, and C infection, and vaccinating for hepatitis A and B if susceptible. METHODS We evaluated hepatitis prevention services received by a random sample of HIV-infected MSM in 8 HIV clinics in 6 US cities. We abstracted medical records of all visits made by the patients to the clinic during the period from 2004 to 2007, to estimate hepatitis screening and vaccination rates overall and by clinic site. RESULTS Medical records of 1329 patients who had 14,831 visits from 2004 to 2006 were abstracted. Screening rates for hepatitis A, B, and C were 47%, 52%, and 54%, respectively. Among patients who were screened and found to be susceptible, 29% were vaccinated for hepatitis A and 25% for hepatitis B. The percentage of patients screened and vaccinated varied significantly by clinic. CONCLUSIONS Awareness of hepatitis susceptibility and hepatitis coinfection status in HIV-infected patients is essential for optimal clinical management. Despite recommendations for hepatitis screening and vaccination of HIV-infected MSM, rates were suboptimal at all clinic sites. These low rates highlight the importance of routine review of adherence to recommended clinical services. Such reviews can prompt the development and implementation of simple and sustainable interventions to improve the quality of care.
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25
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Mayer KH. Sexually transmitted diseases in men who have sex with men. Clin Infect Dis 2012; 53 Suppl 3:S79-83. [PMID: 22080272 DOI: 10.1093/cid/cir696] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Men who have sex with men (MSM) have increased rates of human immunodeficiency virus (HIV) infection and sexually transmitted diseases (STDs) compared with demographically matched controls. The reasons for the disproportionate infection burden are complex, including biological, behavioral, and sociocultural factors. HIV and syphilis may often be coprevalent among MSM. The use of nucleic acid amplification testing has enhanced the ability to detect frequently asymptomatic gonococcal and chlamydial infections of the rectum and other sites. Lymphogranuloma proctitis outbreaks among MSM were noted in the developed world several years ago but have not been common recently. MSM are at increased risk for viral hepatitis and anal human papillomavirus disease. Preventive interventions include vaccination for the former and anal cytologic screening for the latter. Because of the diverse ways in which MSM may be exposed to STDs, it is essential for clinicians to obtain a thorough sexual history in a culturally competent manner.
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Affiliation(s)
- Kenneth H Mayer
- Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA.
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Hayden CA, Streatfield SJ, Lamphear BJ, Fake GM, Keener TK, Walker JH, Clements JD, Turner DD, Tizard IR, Howard JA. Bioencapsulation of the hepatitis B surface antigen and its use as an effective oral immunogen. Vaccine 2012; 30:2937-42. [PMID: 22406456 DOI: 10.1016/j.vaccine.2012.02.072] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 02/05/2012] [Accepted: 02/25/2012] [Indexed: 01/14/2023]
Abstract
Hepatitis B remains a major global health problem despite the availability of a safe and effective vaccine. Segments of the population lack access to or respond poorly to the parenteral vaccine, perpetuating the infection-transmission cycle. A low cost, orally delivered vaccine has the potential to alleviate many of these problems. Here we describe the expression of a bioencapsulated hepatitis B surface antigen (HBsAg) in maize and its immunogenicity, demonstrating for the first time a commercially feasible oral subunit vaccine production system for a major disease. This work surmounts previous barriers to plant-produced vaccines by expressing HBsAg at much higher levels and retaining antigen immunogenicity post-processing: factors which facilitated a robust immune response in mice without the need for an adjuvant. This method provides a practical solution to the delivery of a low-cost, stable oral vaccine.
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Affiliation(s)
- Celine A Hayden
- Applied Biotechnology Institute, Cal Poly Tech Park, San Luis Obispo, CA 93407, United States
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Matthews JE, Stephenson R, Sullivan PS. Factors associated with self-reported HBV vaccination among HIV-negative MSM participating in an online sexual health survey: a cross-sectional study. PLoS One 2012; 7:e30609. [PMID: 22363453 PMCID: PMC3281854 DOI: 10.1371/journal.pone.0030609] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Accepted: 12/25/2011] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND A substantial proportion of men who have sex with men (MSM) in the United States remain unvaccinated against hepatitis B. We sought to understand which factors are associated with vaccination among HIV-negative MSM. METHODOLOGY/PRINCIPAL FINDINGS Data were from a 2010 web-based survey of adult MSM. We calculated the prevalence of self-reported hepatitis B vaccination among 1,052 HIV-negative or HIV-untested men who knew their hepatitis B vaccination status, and used multivariate logistic regression to determine associated factors. 679 (64.5%) MSM reported being vaccinated. Younger men were more likely to report being vaccinated than older men, and there was a significant interaction between age and history of hepatitis B testing. Men with at least some college education were at least 2.1 times as likely to be vaccinated as men with a high school education or less (95% CI = 1.4-3.1). Provider recommendation for vaccination (aOR = 4.2, 95% CI = 2.4-7.4) was also significantly associated with receipt of vaccination. CONCLUSIONS/SIGNIFICANCE Providers should assess sexual histories of male patients and offer those patients with male sex partners testing for hepatitis infection and vaccinate susceptible patients. There may be particular opportunities for screening and vaccination among older and more socioeconomically disadvantaged MSM.
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Affiliation(s)
- Jonathan E. Matthews
- Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, Georgia, United States of America
| | - Rob Stephenson
- Hubert Department of Global Health, Emory University Rollins School of Public Health, Atlanta, Georgia, United States of America
| | - Patrick S. Sullivan
- Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, Georgia, United States of America
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Ladak F, Gjelsvik A, Feller E, Rosenthal S, Montague BT. Hepatitis B in the United States: ongoing missed opportunities for hepatitis B vaccination, evidence from the Behavioral Risk Factor Surveillance Survey, 2007. Infection 2012; 40:405-13. [DOI: 10.1007/s15010-011-0241-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Accepted: 12/21/2011] [Indexed: 01/05/2023]
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Feldman MB. A critical literature review to identify possible causes of higher rates of HIV infection among young black and Latino men who have sex with men. J Natl Med Assoc 2011; 102:1206-21. [PMID: 21287902 DOI: 10.1016/s0027-9684(15)30776-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Black and Latino young men who have sex with men (YMSM) are disproportionately impacted by HIV infection; however, the reason for this disparity is unclear. To identify possible causes of the higher rates of HIV infection in this population, data from studies of HIV infection and risk-related behaviors among black and Latino YMSM were used to evaluate a series of hypotheses adapted from Millett et al's literature review that might explain the disparity. High rates of HIV infection might be attributable to unrecognized HIV infection, social/sexual networks, and a history of childhood sexual abuse; however, they were not attributable to risk-related behaviors. More research is needed to understand the risk factors for HIV infection and how to address them in HIV prevention interventions.
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Abstract
Less than half of gay and bisexual men indicated they had received some doses of hepatitis B virus vaccine. Hepatitis B virus vaccination was higher among men who were 18 to 29 years old (compared to those 50-59 years old), gay, or had received flu vaccine within the last year.
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Affiliation(s)
- Paul L. Reiter
- UNC Gillings School of Global Public Health
- Lineberger Comprehensive Cancer Center
| | - Noel T. Brewer
- UNC Gillings School of Global Public Health
- Lineberger Comprehensive Cancer Center
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Spradling PR, Richardson JT, Buchacz K, Moorman AC, Brooks JT. Prevalence of chronic hepatitis B virus infection among patients in the HIV Outpatient Study, 1996-2007. J Viral Hepat 2010; 17:879-86. [PMID: 20158604 DOI: 10.1111/j.1365-2893.2009.01249.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Coinfection with hepatitis B virus (HBV) is an important and preventable cause of chronic liver disease among HIV-infected patients. We calculated the prevalence of chronic HBV infection annually from 1996 to 2007 by age, gender, race/ethnicity, and HIV transmission risk in a multisite observational cohort study of HIV-infected patients. Prevalence of chronic HBV infection was calculated as the number of patients with a positive HBsAg or detectable HBV DNA divided by the number of patients tested using either one of these assays. Among 4467 (59%) patients tested for chronic HBV infection from a total of 7618 patients active during 1996-2007, median age was 38.5 years, 77% were men, 49% were white, 35% were black, 13% were Hispanic, and 53% were men who had sex with men (MSM). Overall, 8.4% tested positive for HBsAg or detectable HBV DNA. Annual chronic HBV prevalence during 1996-2007 ranged from 7.8% to 8.6% without a statistically significant trend. Overall, prevalence was greater among men compared with women; among whites, blacks, and persons of other race compared with Hispanics; among MSM compared with injection drug users and high-risk heterosexuals; and among patients aged 35-44 years compared with younger or older patients. MSM constituted the greatest fraction (63-72%) of all HBV-infected patients in the HIV Outpatient Study (HOPS) over the period. Of eligible patients, 5.8%, 23.4%, and 31.6% had received at least one dose of HBV vaccine by years 1996, 2002, and 2007, respectively. Despite the availability of an effective HBV vaccine for over two decades and long-standing recommendations for immunization of persons (with or without HIV infection) at risk for HBV, the prevalence of chronic HBV infection in this study has been largely unchanged over the past decade among patients in all groups, and overall was 20 times as high as the national population prevalence.
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Affiliation(s)
- P R Spradling
- Division of Viral Hepatitis, National Center for HIV, Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA.
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Ayers JW, Juon HS, Lee S, Park E. Hepatitis B vaccination prevalence and its predictors among Asian, Pacific Islander, Native American, and multiracial adults in the National Health and Nutrition Examination Survey. J Immigr Minor Health 2010; 12:847-52. [PMID: 19967403 PMCID: PMC5508214 DOI: 10.1007/s10903-009-9309-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Hepatitis B Virus (HBV) vaccination prevalence and its predictors were estimated among Asian, Pacific Islander, Native American, and Multiracial (A-PI-NA-M) adults. Using 2005 National Health and Nutrition Examination Survey data, estimates of HBV vaccination among A-PI-NA-M adults (N = 233) were compared with all other racial/ethnic groups. Multivariable logistic regression was used to estimate predictors of vaccination. Among A-PI-NA-M adults 42% (95%CI 34, 50) were HBV immunized, higher than all other racial/ethnic groups. Some college was associated with a 31% (95%CI 7, 55); a college degree with a 28% (95%CI 8, 49) increased probability of HBV vaccination relative to less education. Each 10-year increase in age was associated with an 11% (95%CI -18, -4) lower probability of HBV vaccination. Access to medical care and immigrant status were not associated with vaccination. Interventions to increase HBV vaccination should target less-educated and older A-PI-NA-M adults, as well as develop strategies so that access to care may increase vaccination.
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Affiliation(s)
- John W Ayers
- Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
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Storholm ED, Fisher DG, Reynolds GL, Napper LE, Morrisse TA, Kochems LM. Hepatitis vaccination of men who have sex with men at gay pride events. PREVENTION SCIENCE : THE OFFICIAL JOURNAL OF THE SOCIETY FOR PREVENTION RESEARCH 2010; 11:219-27. [PMID: 20049541 PMCID: PMC2858271 DOI: 10.1007/s11121-009-0164-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Prevention researchers have advocated primary prevention such as vaccination in alternative venues. However, there have been major questions about both the attendance of, and the ability to, vaccinate high-risk individuals in such settings. The current study seeks to assess the feasibility of vaccinating high-risk men who have sex with men (MSM) at Gay Pride events. The research questions are: Do gay men who are sampled at Gay Pride events engage in more or less risky behavior than gay men sampled at other venues? Do the gay men who receive hepatitis vaccinations at Gay Pride engage in more or less risky behavior than gay men at Gay Pride who do not receive hepatitis vaccination? Of the 3689 MSM that completed the Field Risk Assessment (FRA), 1095/3689 = 29.68% were recruited at either the 2006 or 2007 Long Beach, California Gay Pride events. The remaining, 2594/3689 = 70.32% were recruited at Long Beach gay bars, gay community organizations and institutions, and through street recruitment in various gay enclaves in the Long Beach area. Logistic regression analysis yielded eight factors that were associated with non-attendance of Gay Pride: Age, had sex while high in the last 12 months, had unprotected anal intercourse (UAI) in the last 12 months, had sex for drugs/money in the last 12 months, been diagnosed with a sexually transmitted infection (STI) in the last 12 months, used nitrites (poppers) in the last 12 months, and used methamphetamine in the last 12 months. Identifying as White, Asian, or African American compared to Hispanic was also associated with non-attendance. Bivariate analysis indicated that, of the MSM sampled at Gay Pride, 280/1095 = 25.57% received a hepatitis vaccination there. The MSM sampled at Gay Pride who reported engaging in UAI or having used any stimulant (cocaine, crack-cocaine, or methamphetamine) in the last 12 months were more likely to receive hepatitis vaccination on-site. The results provide evidence for the viability of successfully vaccinating high-risk MSM at Gay Pride events. However, it is vital that no-cost vaccinations are also funded in other community settings such as STI clinics, drug treatment programs, prisons, universities, and other community resource centers in order to reach those additional high-risk MSM who do not attend Gay Pride.
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Affiliation(s)
- Erik David Storholm
- Center for Health, Identity, Behavior & Prevention Studies, New York University, New York, NY USA
| | - Dennis G. Fisher
- Center for Behavioral Research and Services, California State University, 1090 Atlantic Avenue, Long Beach, CA 90813 USA
| | - Grace L. Reynolds
- Center for Behavioral Research and Services, California State University, 1090 Atlantic Avenue, Long Beach, CA 90813 USA
| | - Lucy E. Napper
- Center for Behavioral Research and Services, California State University, 1090 Atlantic Avenue, Long Beach, CA 90813 USA
| | | | - Lee M. Kochems
- Center for Behavioral Research and Services, California State University, 1090 Atlantic Avenue, Long Beach, CA 90813 USA
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Trends in vaccine-induced immunity to hepatitis B among Canadian street-involved youth. J Urban Health 2010; 87:337-348. [PMID: 20174878 PMCID: PMC2845840 DOI: 10.1007/s11524-009-9428-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2009] [Accepted: 12/11/2009] [Indexed: 10/19/2022]
Abstract
In Canada, universal and publicly funded hepatitis B immunization programs have been available since 1998 in all provinces and territories. This present study estimates the proportion of having vaccine-induced immunity to hepatitis B virus (HBV) infection and its associated determinants among street-involved youth aged at 15-24 years old in Canada using the data collected by the Enhanced Surveillance of Canadian Street Youth. Vaccine-induced immunity was identified by blood test results of anti-HBc negative and anti-HBs positive. Of the 4,035 participants included in this study, the overall proportion of those with vaccine-induced immunity to HBV was 51.7% during the study period compared to over 90% among the general adolescent population. The proportion of street-involved youth immunized with HBV vaccine increased from 34.7% in 1999 to 64.4% in 2005. Immunity was higher among females (aOR = 1.43, 1.17-1.75) and among those with a reported history of sexually transmitted infection (aOR = 1.30, 1.03-1.63). The proportion of youth with the immunity decreased as age increased (aOR = 0.78, 0.76-0.81, per year increase). Despite an overall increase in the proportion of Canadian street-involved youth with vaccine-induced immunity to HBV, the proportion was still significantly lower than that observed in the general adolescent population. This highlights the need to improve the access to basic health care and the immunization programs to HBV for street-involved youth through creative outreach programs and other multi-faceted approaches.
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Abstract
Acute hepatitis B virus (HBV) is a common cause of acute icteric hepatitis in adults. The vast majority of these patients resolve this acute infection and develop long-lasting immunity. In contrast, the vast majority of patients who develop chronic HBV have minimal symptoms and do not develop jaundice after becoming infected with HBV. These patients will frequently remain undiagnosed for years or decades. Approximately 1% of persons with acute HBV develop acute liver failure. Preventing acute HBV with vaccination is the best treatment. Although universal vaccination is now administered to newborns in many countries, the majority of adults have not been vaccinated and remain at risk. Because the majority of patients with acute HBV resolve this infection spontaneously, treatment with an oral anti-HBV agent is not necessary. However, the use of an oral anti-HBV agent is not unreasonable to use in a patient who is developing acute liver failure from severe acute HBV.
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36
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Norris S, Mohsen A. Hepatitis B (prevention). BMJ CLINICAL EVIDENCE 2009; 2009:0916. [PMID: 21726479 PMCID: PMC2907831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
INTRODUCTION Nearly a third of the world's population has been infected by hepatitis B at some point, and at least 350 million people have become chronic carriers. Progressive liver damage occurs in up to 25% of carriers. In areas of high endemicity, transmission occurs largely in childhood; from an infected mother to her baby, or between members of a household. METHODS AND OUTCOMES We conducted a systematic review and aimed to answer the following clinical questions: What are the effects of vaccination against hepatitis B infection in countries with high endemicity? What are the effects of vaccination against hepatitis B infection in countries with low endemicity? We searched: Medline, Embase, The Cochrane Library, and other important databases up to June 2008 (Clinical Evidence reviews are updated periodically; please check our website for the most up-to-date version of this review). We included harms alerts from relevant organisations, such as the US Food and Drug Administration (FDA), and the UK Medicines and Healthcare products Regulatory Agency (MHRA). RESULTS We found 51 systematic reviews, RCTs, or observational studies that met our inclusion criteria. We performed a GRADE evaluation of the quality of evidence for interventions. CONCLUSIONS In this systematic review, we present information relating to the effectiveness and safety of the following interventions: selective vaccination of high-risk individuals; selective vaccination of people with chronic liver disease not caused by hepatitis B; universal vaccination of adolescents; and universal vaccination of infants.
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Paat G, Uusküla A, Tefanova V, Tallo T, Priimägi L, Ahi K. The trends and risk factors for hepatitis B occurrence in Estonia. Cent Eur J Public Health 2009; 17:108-11. [PMID: 19662830 DOI: 10.21101/cejph.a3483] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Hepatitis B virus (HBV) infection is prevalent worldwide and is a significant cause of morbidity and mortality. This article describes the trend in HBV occurrence in Estonia from 1990 to 2005 in Estonia, with the aim of highlighting key determinants in transmission dynamics, risk groups, and possible implications for prevention and control. A marked increase in reported numbers of new HBV cases occurred in mid 1990s (reaching 39 per 100,000 population) and decline thereafter. We present data on HBV prevalence from different population groups (persons with verified sexually transmitted infection, prisoners, medical personnel, blood donors and injection drug users). Special vaccination programmes introduced in Estonia have been successful in the prevention of HBV, however, we suggest that the main risk groups such as injection drug users (IDUs), men having sex with men (MSM) and HIV infected persons should be actively encompassed into HBV vaccination programme.
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Affiliation(s)
- Gerli Paat
- PRAXIS Center for Policy Studies, Tallinn, Estonia.
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Abstract
BACKGROUND Successful conduct of HIV vaccine efficacy trials entails identification and enrollment of at-risk populations, assessment of appropriate end points as measures of vaccine efficacy for prevention of HIV acquisition, and amelioration of disease course among infected vaccinees, as well as identification of potential confounders or effect modifiers. Although not invariably useful and bringing their own cost in terms of measurement and validation, a variety of biomarkers may aid at each stage of trial conduct. METHODS A review of selected articles, chosen based on quality, relevance of the biomarker to HIV vaccine trials, and availability of the publication, was conducted. The authors also drew experience from current trials and other planned or ongoing trials. CONCLUSIONS Biomarkers are available to assess HIV incidence in potential study populations, but care is needed in interpreting results of these assays. During trial conduct, sexually transmitted infections such as herpes simplex virus type 2 may act as effect modifiers on primary and secondary end points, including HIV incidence and set point viral load. The utility of sexually transmitted infection biomarkers will likely depend heavily on local epidemiology at clinical trial sites. Analyses from recent large HIV vaccine efficacy trials point to the complexities in interpreting trial results and underscore the potential utility of biomarkers in evaluating confounding and effect modification.
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Anderson SA, Yang H, Gallagher LM, O'Callaghan S, Forshee RA, Busch MP, McKenna MT, Williams I, Williams A, Kuehnert MJ, Stramer S, Kleinman S, Epstein J, Dayton AI. Quantitative estimate of the risks and benefits of possible alternative blood donor deferral strategies for men who have had sex with men. Transfusion 2009; 49:1102-14. [DOI: 10.1111/j.1537-2995.2009.02124.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Weinbaum CM, Mast EE, Ward JW. Recommendations for identification and public health management of persons with chronic hepatitis B virus infection. Hepatology 2009; 49:S35-44. [PMID: 19399812 DOI: 10.1002/hep.22882] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Early identification of persons with chronic HBV infection enables infected persons to receive necessary care to prevent or delay onset of liver disease, and enables the identification and vaccination of susceptible household contacts and sex partners, interrupting ongoing transmission. Testing has been recommended previously to enable primary prevention of HBV infection among close contacts for pregnant women, household contacts and sex partners of HBV-infected persons, persons born in countries with hepatitis B surface antigen (HBsAg) prevalence of more than 8%, persons who are the source of blood or body fluid exposures that might warrant postexposure prophylaxis (e.g., needlestick injury to a healthcare worker or sexual assault), and to enable appropriate treatment for infants born to HBsAg-positive mothers and persons infected with human immunodeficiency virus. Recently, with the increasing availability of efficacious hepatitis B treatment, the Centers for Disease Control and Prevention published new recommendations for public health evaluation and management for chronically infected persons and their contacts and extended testing recommendations to include persons born in geographic regions with HBsAg prevalence of greater than 2%, men who have sex with men, and injection drug users. Patient and provider education, developing partnerships between health departments and community organizations, and other resources will be needed to assure appropriate populations are tested and care provided for persons newly identified as HBsAg-positive.
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Affiliation(s)
- Cindy M Weinbaum
- Division of Viral Hepatitis, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
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Bailey CL, Smith V, Sands M. Hepatitis B vaccine: a seven-year study of adherence to the immunization guidelines and efficacy in HIV-1-positive adults. Int J Infect Dis 2008; 12:e77-83. [PMID: 18723381 DOI: 10.1016/j.ijid.2008.05.1226] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2008] [Revised: 05/06/2008] [Accepted: 05/19/2008] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Vaccination against hepatitis B virus (HBV) has been recommended for all high-risk adults since 1982. Since the advent of highly active antiretroviral therapy, few studies have examined adherence to the Infectious Diseases Society of America (IDSA) and Advisory Committee on Immunization Practices (ACIP) guidelines for hepatitis B vaccination in persons infected with HIV. METHODS This was a seven-year retrospective, cross-sectional analysis of HBV vaccination practices in HIV-1-positive adults treated in an urban ambulatory care center. Compliance with screening, hepatitis B vaccination recommendations, and response to vaccination were assessed. RESULTS Of the 1601 charts reviewed, 717 persons were eligible for vaccination against hepatitis B. Of these patients, 503 received at least one dose of vaccine, but only 356 patients completed the three-dose series. Vaccine response was associated with CD4 count (p=0.006) and viral load (p=0.001) at the time of the first dose. However, development of hepatitis B surface antibody was seen at all CD4 counts and viral loads. The multivariate analysis showed only the HIV viral load was predictive of immunologic response. Twenty of the vaccine-eligible patients who did not receive vaccination were infected with HBV during the study period. No vaccinated persons contracted hepatitis B. CONCLUSION Failure to implement these guidelines represents a missed opportunity to prevent disease. In our study, HIV viral load was better than CD4 count as a predictor of response to the HBV vaccination. However, neither low CD4 count nor high HIV viral load should be used as justification to delay vaccination of high-risk persons.
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Affiliation(s)
- Christina L Bailey
- Division of Infectious Diseases, University of Florida Health Science Center, Jacksonville, Florida 32206, USA
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Weinbaum CM, Lyerla R, Mackellar DA, Valleroy LA, Secura GM, Behel SK, Bingham T, Celentano DD, Koblin BA, Lalota M, Shehan DA, Thiede H, Torian LV. The Young Men's Survey phase II: hepatitis B immunization and infection among young men who have sex with men. Am J Public Health 2008; 98:839-45. [PMID: 18382012 DOI: 10.2105/ajph.2006.101915] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES We measured the prevalence of hepatitis B virus (HBV) immunization and HBV infection among men aged 23 to 29 years who have sex with men. METHODS We analyzed data from 2834 men who have sex with men in 6 US metropolitan areas. Participants were interviewed and tested for serologic markers of immunization and HBV infection in 1998 through 2000. RESULTS Immunization prevalence was 17.2%; coverage was 21.0% among participants with private physicians or health maintenance organizations and 12.6% among those with no source of health care. Overall, 20.6% had markers of HBV infection, ranging from 13.7% among the youngest to 31.0% among the oldest participants. Among those susceptible to HBV, 93.5% had regular sources of health care, had been tested for HIV, or had been treated for a sexually transmitted disease. CONCLUSIONS Although many young men who have sex with men have access to health care, most are not immunized against HBV. To reduce morbidity from HBV in this population, providers of health care, including sexually transmitted disease and HIV prevention services, should provide vaccinations or referrals for vaccination.
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Affiliation(s)
- Cindy M Weinbaum
- Office of Communications, NCHHSTP, Mailstop E-06, Centers for Disease Control and Prevention, 16000 Clifton Road, Atlanta GA 30333, USA.
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Siconolfi DE, Halkitis PN, Rogers ME. Hepatitis Vaccination and Infection Among Gay, Bisexual, and Other Men Who Have Sex with Men who Attend Gyms in New York City. Am J Mens Health 2008; 3:141-9. [DOI: 10.1177/1557988308315151] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The authors examined hepatitis A virus (HAV) and hepatitis B virus (HBV) vaccination rates, hepatitis infection, and health care access in a gym-attending sample of 311 gay, bisexual, and other men who have sex with men (MSM) in New York City. Overall, 69% reported having been vaccinated for HAV and 70% reported having been vaccinated for HBV. Multivariate models were used to identify predictors of HAV and HBV vaccination, and younger men, HIV-positive men, and men who had access to a doctor or clinic were more likely to be vaccinated than older men, HIVnegative men, and men without access to a doctor or clinic. Men with health insurance coverage were more likely to have received HBV vaccination than men without coverage. Findings indicate that there is still a significant proportion of unvaccinated men in our sample.
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Affiliation(s)
- Daniel E. Siconolfi
- Center for Health, Identity, Behavior & Prevention Studies (CHIBPS), Steinhardt School of Culture, Education & Human Development, New York University,
| | - Perry N. Halkitis
- Center for Health, Identity, Behavior & Prevention Studies (CHIBPS), Steinhardt School of Culture, Education & Human Development, New York University
| | - Meighan E. Rogers
- New York City Department of Health and Mental Hygiene Bureau of Sexually Transmitted Disease Control
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Lum PJ, Hahn JA, Shafer KP, Evans JL, Davidson PJ, Stein E, Moss AR. Hepatitis B virus infection and immunization status in a new generation of injection drug users in San Francisco. J Viral Hepat 2008; 15:229-36. [PMID: 18233994 DOI: 10.1111/j.1365-2893.2007.00933.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Hepatitis B virus (HBV) infection is common among injection drug users (IDU). Younger IDU, however, may be less susceptible to infection due to the implementation of public health interventions, such as universal immunization programs and syringe exchange programs. To investigate the current epidemiology of HBV infection and control among a new generation of drug users in the United States, we conducted interviews and examined HBV serologic markers in a cross-section of street-recruited IDU under age 30 in San Francisco, CA. Of the 831 persons studied, 21% showed serologic evidence of current or past infection; 22% had isolated antibodies to hepatitis B surface antigen consistent with vaccine-mediated immunity; and 56% had no HBV markers. In multivariate analyses, HBV infection was associated with drug use behaviour in heterosexual males; sexual behaviour in males who have sex with males; and both drug use and sexual behaviour in females. Vaccine-mediated immunity was independently associated with female sex and younger age. In conclusion, HBV transmission persists among young IDU in San Francisco. Few young injectors show evidence of successful immunization and the majority remains susceptible to disease. Until the broad effects of universal vaccination are seen, targeted and innovative approaches to immunizing young IDU in the US are needed to prevent a substantial number of new HBV infections.
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Affiliation(s)
- P J Lum
- Department of Medicine, University of California, San Francisco, CA, USA.
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Amesty S, Ompad DC, Galea S, Fuller CM, Wu Y, Koblin B, Vlahov D. Prevalence and Correlates of Previous Hepatitis B Vaccination and Infection Among Young Drug-users In New York City. J Community Health 2008; 33:139-48. [DOI: 10.1007/s10900-007-9082-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Rhodes SD, Hergenrather KC. Attitudes and beliefs about hepatitis B vaccination among gay men: the Birmingham Measurement Study. JOURNAL OF HOMOSEXUALITY 2008; 55:124-149. [PMID: 18928048 DOI: 10.1080/00918360802129386] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
This study was designed to develop reliable and valid quantitative measures of the beliefs and attitudes toward hepatitis B virus (HBV) vaccination among gay men, using a community-based participatory research approach. A convenience sample of 358 gay men was recruited in two gay bars. Exploratory factor analysis performed on the first split-half sample was used to assess the factor structure from five scales measuring beliefs about HBV vaccination. The scales were based on constructs from the health belief model and the social cognitive theory. Confirmatory factor analysis was performed on the remaining half-sample using structural equation modeling. Multivariable analysis further validated the scales. These findings propose standardized measures that may be useful in assessing the beliefs and attitudes of gay men toward HBV vaccination to guide intervention design and evaluation.
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Affiliation(s)
- Scott D Rhodes
- Department of Social Sciences and Health Policy, Divisions of Public Health Sciences, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157-1063, USA.
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Gunn RA, Lee MA, Murray PJ, Gilchick RA, Margolis HS. Hepatitis B vaccination of men who have sex with men attending an urban STD clinic: impact of an ongoing vaccination program, 1998-2003. Sex Transm Dis 2007; 34:663-8. [PMID: 17847164 DOI: 10.1097/01.olq.0000258306.20287.a7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To evaluate the impact of an ongoing hepatitis B vaccination service offered in an urban sexually transmitted disease (STD) clinic. STUDY DESIGN During the period 1998-2003, hepatitis B vaccine acceptance, series completion, and vaccine coverage rates were evaluated among men who have sex with men (MSM) and other clients attending the main STD clinic in San Diego County, California. RESULTS Among 21,631 STD clinic attendees, 81% were eligible to start and 69% accepted hepatitis B vaccination. Among a cohort of MSM starting vaccination in 1998, 76% and 55% received 2 doses and 3 doses, respectively, after 1 year follow-up and coverage then increased 1-2 percentage points annually to a final 2-dose and 3-dose coverage of 80% and 62%, respectively. Vaccine coverage (>=1 prior vaccine dose) among STD clinic attendees in 2003 was 45% compared to only 11% in 1998, the first year of the program. CONCLUSIONS Hepatitis B vaccination can be integrated into STD clinic services with reasonable levels of vaccine acceptance and series completion. The increase in vaccination coverage over time indicates that a sustained hepatitis B immunization program can achieve acceptable vaccine coverage in high-risk populations.
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Affiliation(s)
- Robert A Gunn
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
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Millett GA, Flores SA, Peterson JL, Bakeman R. Explaining disparities in HIV infection among black and white men who have sex with men: a meta-analysis of HIV risk behaviors. AIDS 2007; 21:2083-91. [PMID: 17885299 DOI: 10.1097/qad.0b013e3282e9a64b] [Citation(s) in RCA: 439] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To identify factors that contribute to the racial disparity in HIV prevalence between black and white men who have sex with men (MSM) in the United States. METHODS A comprehensive literature search of electronic databases, online bibliographies, and publication reference lists yielded 53 quantitative studies of MSM published between 1980 and 2006 that stratified HIV risk behaviors by race. Meta-analyses were performed to compare HIV risks between black and white MSM across studies. RESULTS Compared with white MSM, black MSM reported less overall substance use [odds ratio (OR), 0.71; 95% confidence interval (CI), 0.53-0.97], fewer sex partners (OR, 0.64; 95% CI, 0.45-0.92), less gay identity (OR, 0.29; 95% CI, 0.17-0.48), and less disclosure of same sex behavior (OR, 0.42; 95% CI, 0.30-0.60). HIV-positive black MSM were less likely than HIV-positive white MSM to report taking antiretroviral medications (OR, 0.43; 95% CI, 0.30-0.61). Sexually transmitted diseases were significantly greater among black MSM than white MSM (OR, 1.64; 95% CI, 1.07-2.53). There were no statistically significant differences by race in reported unprotected anal intercourse, commercial sex work, sex with a known HIV-positive partner, or HIV testing history. CONCLUSIONS Behavioral risk factors for HIV infection do not explain elevated HIV rates among black MSM. Continued emphasis on risk behaviors will have only limited impact on the disproportionate rates of HIV infection among black MSM. Future research should focus on the contribution of other factors, such as social networks, to explain racial disparities in HIV infection rates.
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Affiliation(s)
- Gregorio A Millett
- Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, USA.
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Herlihy EJ, Klein SJ, Newcomb ML, Blog DS, Birkhead GS. Expansion of adult hepatitis A and B vaccination in STD clinics and other settings in New York State. Public Health Rep 2007; 122 Suppl 2:36-41. [PMID: 17542451 PMCID: PMC1831813 DOI: 10.1177/00333549071220s207] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Since 1995, the New York State (NYS) Adult Hepatitis Vaccination Program has promoted adult hepatitis B vaccination for those receiving sexually transmitted disease (STD) clinic services. An average of 6,333 doses was administered annually from 1995 to 1999. By 2000, only 15 of 57 county STD programs in NYS outside of New York City participated. From 2000 to 2005, efforts to enroll county health departments and others included outreach, provision of hepatitis A and B vaccine, materials and training, and new collaborations. All 57 counties now participate. From 2000 to 2005, the number of settings offering hepatitis vaccination increased from 57 to 119. Sites include STD clinics; jails; migrant, Indian health, and college health centers; and methadone clinics. More than 125,000 doses of hepatitis A and B vaccine were administered from 1995 through 2005, with annual increases up to a high of 21,025 doses in 2005. Intensive promotion expanded hepatitis vaccination to all county STD clinics and other settings where high-risk adults can be vaccinated.
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Affiliation(s)
- Elizabeth J Herlihy
- Immunization Program, New York State Department of Health, Albany, NY 12237, USA.
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Buffington J, Jones TS. Integrating viral hepatitis prevention into public health programs serving people at high risk for infection: good public health. Public Health Rep 2007; 122 Suppl 2:1-5. [PMID: 17542445 PMCID: PMC1831807 DOI: 10.1177/00333549071220s201] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Joanna Buffington
- Division of Viral Hepatitis, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
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