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Virus Diseases Commons™

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Epidemiology

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Articles 31 - 40 of 40

Full-Text Articles in Virus Diseases

Hepatitis C Virus Infection Among Hiv-Positive Men Who Have Sex With Men: Protocol For A Systematic Review And Meta-Analysis, Holly Hagan, Joshua Neurer, Ashly E. Jordan, Don C. Des Jarlais, Jennifer Wu, Kirk Dombrowski, Bilal Khan, Ronald Scott Braithwaite, Jason Kessler Mar 2014

Hepatitis C Virus Infection Among Hiv-Positive Men Who Have Sex With Men: Protocol For A Systematic Review And Meta-Analysis, Holly Hagan, Joshua Neurer, Ashly E. Jordan, Don C. Des Jarlais, Jennifer Wu, Kirk Dombrowski, Bilal Khan, Ronald Scott Braithwaite, Jason Kessler

Publications and Research

Background: Outbreaks of hepatitis C virus (HCV) infection have been reported in HIV-positive men who have sex with men (MSM) in North America, Europe and Asia. Transmission is believed to be the result of exposure to blood during sexual contact. In those infected with HIV, acute HCV infection is more likely to become chronic, treatment for both HIV and HCV is more complicated and HCV disease progression may be accelerated. There is a need for systematic reviews and meta-analyses to synthesize the epidemiology, prevention and methods to control HCV infection in this population.

Methods/design: Eligible studies will include quantitative empirical …


The Effectiveness Of Health Education Materials In Influencing Hiv Testing Behavior: The Unlv-Siphi Study, Rebecca Tsegay Dec 2012

The Effectiveness Of Health Education Materials In Influencing Hiv Testing Behavior: The Unlv-Siphi Study, Rebecca Tsegay

UNLV Theses, Dissertations, Professional Papers, and Capstones

The UNLV-SIPHI (Sexual Health Internet-Based Public Health Intervention) Study focused on HIV prevention by improving HIV testing behavior through the development and dissemination of health education materials. The goal of the UNLV-SIPHI Study was to develop effective, custom-made HIV health education materials that promote the knowledge, intention and practice of HIV testing among UNLV students. The UNLV-SIPHI Study was conducted during Spring 2012 semester in selected UNLV undergraduate classes. An online quasi-randomized-control trial (RCT) was used to measure the difference in HIV testing behavior contributing factors among students exposed to the health education materials. Several nonparametric tests were used to …


Refining The Global Spatial Limits Of Dengue Virus Transmission By Evidence-Based Consensus, Oliver J. Brady, Peter W. Gething, Samir Bhatt, Jane P. Messina, John S. Brownstein, Anne G. Hoen Aug 2012

Refining The Global Spatial Limits Of Dengue Virus Transmission By Evidence-Based Consensus, Oliver J. Brady, Peter W. Gething, Samir Bhatt, Jane P. Messina, John S. Brownstein, Anne G. Hoen

Dartmouth Scholarship

Background: Dengue is a growing problem both in its geographical spread and in its intensity, and yet current global distribution remains highly uncertain. Challenges in diagnosis and diagnostic methods as well as highly variable national health systems mean no single data source can reliably estimate the distribution of this disease. As such, there is a lack of agreement on national dengue status among international health organisations. Here we bring together all available information on dengue occurrence using a novel approach to produce an evidence consensus map of the disease range that highlights nations with an uncertain dengue status.

Methods/Principle Findings: …


The Emerging Hiv Epidemic On The Mexico-U.S. Border: An International Case Study Characterizing The Role Of Epidemiology In Surveillance And Response, Steffaine Strathdee, Carlos Magis-Rodriguez, Richard Jimenez Jun 2012

The Emerging Hiv Epidemic On The Mexico-U.S. Border: An International Case Study Characterizing The Role Of Epidemiology In Surveillance And Response, Steffaine Strathdee, Carlos Magis-Rodriguez, Richard Jimenez

Walden Faculty and Staff Publications

Purpose

Human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome surveillance data are critical for monitoring epidemic trends, but they can mask dynamic subepidemics, especially in vulnerable populations that underuse HIV testing. In this case study, we describe community-based epidemiologic data among injection drug users (IDUs) and female sex workers (FSWs) in two northern Mexico-U.S. border states that identified an emerging HIV epidemic and generated a policy response.

Methods

We draw from quantitative and qualitative cross-sectional and prospective epidemiologic studies and behavioral intervention studies among IDUs and FSWs in Tijuana, Baja California, and Ciudad Juarez, Chihuahua.

Results

The recognition that the HIV epidemic …


Multistate Assessment Of Public Health Surveillance Relevant To American Indians And Alaska Natives, 2007, Jeanne Bertolli, Ed Chao, Michael Landen, Eden Wells, John M. Hayes, Zeenat Mahal, Ralph T. Bryan Mar 2012

Multistate Assessment Of Public Health Surveillance Relevant To American Indians And Alaska Natives, 2007, Jeanne Bertolli, Ed Chao, Michael Landen, Eden Wells, John M. Hayes, Zeenat Mahal, Ralph T. Bryan

Journal of Health Disparities Research and Practice

Improving the health of American Indian and Alaska Native (AI/AN) populations involves multiple agencies, levels of government, and jurisdictions. We assessed collaboration between state health departments and AI/AN Tribes and agencies through an online survey of State Epidemiologists. Frequencies and percentages of responses were examined by univariate and bivariate analyses. Among 39 states with federally recognized or state-recognized Tribes or federally funded urban Indian health centers, 25 (64%) participated. Nineteen had discussed public health surveillance with an AI/ AN government or nongovernment entity in the past 2 years (10 (53%) of these had ongoing, regular discussions about public health surveillance; …


Real-World Comparison Of Two Molecular Methods For Detection Of Respiratory Viruses, Syed Asad Ali, James E. Gern, Tina V. Hartert, Kathryn M. Edwards, Marie R. Griffin, E Kathryn Mille, Tebeb Gebretsadik, Tressa Pappas, Wai Ming Lee, John V. Williams Jun 2011

Real-World Comparison Of Two Molecular Methods For Detection Of Respiratory Viruses, Syed Asad Ali, James E. Gern, Tina V. Hartert, Kathryn M. Edwards, Marie R. Griffin, E Kathryn Mille, Tebeb Gebretsadik, Tressa Pappas, Wai Ming Lee, John V. Williams

Department of Paediatrics and Child Health

Background: Molecular polymerase chain reaction (PCR) based assays are increasingly used to diagnose viral respiratory infections and conduct epidemiology studies. Molecular assays have generally been evaluated by comparing them to conventional direct fluorescent antibody (DFA) or viral culture techniques, with few published direct comparisons between molecular methods or between institutions. We sought to perform a real-world comparison of two molecular respiratory viral diagnostic methods between two experienced respiratory virus research laboratories.
Methods: We tested nasal and throat swab specimens obtained from 225 infants with respiratory illness for 11 common respiratory viruses using both a multiplex assay (Respiratory MultiCode-PLx Assay [RMA]) …


Hepatitis D: Scenario In The Asia-Pacific Region, Z Abbas, Wasim Jafri, Sajjad Raza Feb 2010

Hepatitis D: Scenario In The Asia-Pacific Region, Z Abbas, Wasim Jafri, Sajjad Raza

Department of Medicine

Hepatitis D virus (HDV) infection is present worldwide and affects all age groups. Around 18 million people are estimated to be infected with HDV. An important trend in HDV infection is global decline. HDV prevalence has decreased significantly in Europe since the 1970s and 1980s when it was first reported. The Asia-Pacific region now seems to be where HDV is a major health concern. There is a lack of available data from most of the countries from this region, hence, the true status of HDV cannot be determined. In South Asia, most of the countries have conditions that are favorable …


Central Nervous System Involvement In Dengue Viral Infection, Romasa Channa, Mohammad Wasay Jul 2006

Central Nervous System Involvement In Dengue Viral Infection, Romasa Channa, Mohammad Wasay

Department of Medicine

Neurological manifestations of dengue infection are rare. This review includes data regarding the epidemiology of the disease, neurological manifestations,pathogenesis, diagnosis and prognosis. It is based on 9 original articles and 10 case reports, adding up to 200 cases of dengue fever with neurological manifestations. Relevant cases have been reported from Asia, the Pacific rim, the Americas, the Mediterranean region, and Africa. A wide range of neurological manifestations has been reported. Altered consciousness and seizure are among the more common manifestations. The exact pathogenesis of this disease has not yet been established. However, recent studies hypothesize that the virus is neurotropic. …


Herpes Simplex Virus Type 2 Antibodies: High Prevalence In Monogamous Women In Costa Rica, Mark W. Oberle, Luis Rosero-Bixby, Francis K. Lee, Maria Sanchez-Braverman, A J. Nahmias, Mary Guinan Jan 1989

Herpes Simplex Virus Type 2 Antibodies: High Prevalence In Monogamous Women In Costa Rica, Mark W. Oberle, Luis Rosero-Bixby, Francis K. Lee, Maria Sanchez-Braverman, A J. Nahmias, Mary Guinan

School of Public Health Faculty Research

We studied the prevalence of antibody to Herpes simplex virus types I and 2 (HSV-I and HSV-2) in 766 randomly selected Costa Rican women 25-59 years of age in a national household survey in 1984-1985. Overall, 97.1% were seropositive for HSV-l and 39.4% for HSV -2. Only 1.1% of HSV -2 seropositive women gave a history of symptomatic genital herpes. HSV-2 virus antibody increased with age and with the number of lifetime sexual partners. HSV -2 seroprevalence among women who reported only 1 lifetime sexual partner was almost twice as high as the prevalence among women who denied sexual experience …


National Case-Control Study Of Kaposi's Sarcoma And Pneumocystis Carinii Pneumonia In Homosexual Men: Part 1. Epidemiologic Results, Harold W. Jaffe, Keewhan Choi, Pauline A. Thomas, Harry W. Haverkos, David M. Auerbach, Mary E. Guinan, Martha F. Rogers, Thomas J. Spira, William W. Darrow, Mark A. Kramer, Stephen M. Friedman, James M. Monroe, Alvin E. Friedman-Kien, Linda J. Laubenstein, Michael Marmor, Bijan Safai, Selma K. Dritz, Salvatore J. Crispi, Shirley L. Fannin, John P. Orkwis, Alexander Kelter, Wilmon R. Rushing, Stephen B. Thacker, James W. Curran Jan 1983

National Case-Control Study Of Kaposi's Sarcoma And Pneumocystis Carinii Pneumonia In Homosexual Men: Part 1. Epidemiologic Results, Harold W. Jaffe, Keewhan Choi, Pauline A. Thomas, Harry W. Haverkos, David M. Auerbach, Mary E. Guinan, Martha F. Rogers, Thomas J. Spira, William W. Darrow, Mark A. Kramer, Stephen M. Friedman, James M. Monroe, Alvin E. Friedman-Kien, Linda J. Laubenstein, Michael Marmor, Bijan Safai, Selma K. Dritz, Salvatore J. Crispi, Shirley L. Fannin, John P. Orkwis, Alexander Kelter, Wilmon R. Rushing, Stephen B. Thacker, James W. Curran

School of Public Health Faculty Research

To identify risk factors for the occurrence of Kaposi's sarcoma and Pneumocystis carinii pneumonia in homosexual men, we conducted a case-control study in New York City, San Francisco, Los Angeles, and Atlanta. Fifty patients (cases) (39 with Kaposi's sarcoma, 8 with pneumocystis pneumonia, and 3 with both) and 120 matched homosexual male controls (from sexually transmitted disease clinics and private medical practices) participated in the study. The variable most strongly associated with illness was a larger number of male sex partners per year (median, 61 for patients; 27 and 25 for clinic and private practice controls, respectively). Compared with controls, …