Last data update: Mar 10, 2025. (Total: 48852 publications since 2009)
Records 1-19 (of 19 Records) |
Query Trace: Kroeger K[original query] |
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Provision of STD services in community settings after the loss and return of state funding to support service provision: Observations from select providers in Massachusetts, 2010 and 2013
Loosier PS , Carter MW , Hsu KK , Doshi S , Peterson Maddox BL , Kroeger K , Cranston K . J Public Health Manag Pract 2020 26 (1) E18-e27 CONTEXT: In 2008, the $1.2 M sexually transmitted disease (STD) services line item supporting STD clinical services by the Massachusetts Department of Public Health was eliminated, forcing the cessation of all state-supported STD service delivery. OBJECTIVE: To determine the impact on community provision of STD services after the elimination of state funds supporting STD service provision. DESIGN AND SETTING: Rapid ethnographic assessments were conducted in May 2010 and September 2013 to better understand the impact of budget cuts on STD services in Massachusetts. The rapid ethnographic assessment teams identified key informants through Massachusetts's STD and human immunodeficiency virus programs. PARTICIPANTS: Fifty providers/clinic administrators in 19 sites (15 unique) participated in a semistructured interview (community health centers [n = 10; 53%], hospitals [n = 4; 21%], and other clinical settings [n = 5; 26%]). RESULTS: Results clustered under 3 themes: financial stability of agencies/clinics, the role insurance played in the provision of STD care, and perceived clinic capacity to offer appropriate STD services. Clinics faced hard choices about whether to provide care to patients or refer elsewhere patients who were unable or unwilling to use insurance. Clinics that decided to see patients regardless of ability to pay often found themselves absorbing costs that were then passed along to their parent agency; the difficulty and financial strain incurred by a clinic's parent agency by providing STD services without support by state grant dollars emerged as a primary concern. Meeting patient demand with staff with appropriate training and expertise remained a concern. CONCLUSIONS: Provision of public health by private health care providers may increase concern among some community provision sites about the sustainability of service provision absent external funds, either from the state or from the third-party billing. Resource constraints may be felt across clinic operations. Provision of public health in the for-profit health system involves close consideration of resources, including those: leveraged, used to provide uncompensated care, or available for collection through third-party billing. |
Get in, get tested, get care: STD services in urban urgent care centers
Williams SP , Kinsey J , Carry MG , Terry L , Wells J , Kroeger K . Sex Transm Dis 2019 46 (10) 648-653 BACKGROUND: Recent evidence indicates increased use of urgent care centers (UCCs) for STD testing. We sought to learn more about STD services in UCCs in a large metropolitan area. METHOD: Using a modified rapid gap assessment approach, we interviewed staff from 19 UCCs in metro Atlanta, GA USA. The UCCs were identified using two online search engines. We focused on a 50-mile radius around Atlanta. We then excluded duplicates and closed UCCs, and ones outside Atlanta's five contiguous counties. Using a prioritization process, we visited UCCs in or adjacent to areas with mid-high local STD morbidity, or facilities from which STD cases were reported the year prior. We collected checklist-based data on STD testing, treatment and preventive services, as well as supportive services (e.g., substance use/mental health referrals). Checklist data, notes, and open-ended questions were summarized and analyzed descriptively. RESULTS: All UCCs (n=19) reported offering basic to comprehensive STD testing. Although most could treat on-site for chlamydia and gonorrhea, most relied on referrals, or prescriptions and "return to facility" practices to treat syphilis. Sources for STD information/management included the HD/CDC, online medical sites, and EMR embedded information. Challenges UCCs acknowledged included staying up-to-date with treatment guidance and lab reporting requirements, inadequate time for sexual risk reduction counseling, and linking patients with extended care needs (e.g., HIV+ case management, supportive services), or following up with patients. CONCLUSIONS: Urgent cares are STD testing resources. Service availability varies, but opportunities exists to enhance STD services in UCC settings and in communities. |
House screening with insecticide-treated netting provides sustained reductions in domestic populations of Aedes aegypti in Merida, Mexico
Che-Mendoza A , Medina-Barreiro A , Koyoc-Cardena E , Uc-Puc V , Contreras-Perera Y , Herrera-Bojorquez J , Dzul-Manzanilla F , Correa-Morales F , Ranson H , Lenhart A , McCall PJ , Kroeger A , Vazquez-Prokopec G , Manrique-Saide P . PLoS Negl Trop Dis 2018 12 (3) e0006283 BACKGROUND: There is a need for effective methods to control Aedes aegypti and prevent the transmission of dengue, chikungunya, yellow fever and Zika viruses. Insecticide treated screening (ITS) is a promising approach, particularly as it targets adult mosquitoes to reduce human-mosquito contact. METHODOLOGY/PRINCIPAL FINDINGS: A cluster-randomised controlled trial evaluated the entomological efficacy of ITS based intervention, which consisted of the installation of pyrethroid-impregnated long-lasting insecticide-treated netting material fixed as framed screens on external doors and windows. A total of 10 treatment and 10 control clusters (100 houses/cluster) were distributed throughout the city of Merida, Mexico. Cross-sectional entomological surveys quantified indoor adult mosquito infestation at baseline (pre-intervention) and throughout four post-intervention (PI) surveys spaced at 6-month intervals corresponding to dry/rainy seasons over two years (2012-2014). A total of 844 households from intervention clusters (86% coverage) were protected with ITS at the start of the trial. Significant reductions in the indoor presence and abundance of Ae. aegypti adults (OR = 0.48 and IRR = 0.45, P<0.05 respectively) and the indoor presence and abundance of Ae. aegypti female mosquitoes (OR = 0.47 and IRR = 0.44, P<0.05 respectively) were detected in intervention clusters compared to controls. This high level of protective effect was sustained for up to 24 months PI. Insecticidal activity of the ITS material declined with time, with ~70% mortality being demonstrated in susceptible mosquito cohorts up to 24 months after installation. CONCLUSIONS/SIGNIFICANCE: The strong and sustained entomological impact observed in this study demonstrates the potential of house screening as a feasible, alternative approach to a sustained long-term impact on household infestations of Ae. aegypti. Larger trials quantifying the effectiveness of ITS on epidemiological endpoints are warranted and therefore recommended. |
Pathways to congenital syphilis prevention: A rapid qualitative assessment of barriers, and the public health response, in Caddo Parish, Louisiana
Kroeger K , Sangaramoorthy T , Loosier PS , Schmidt R , Gruber D . Sex Transm Dis 2018 45 (7) 442-446 BACKGROUND: Congenital syphilis (CS) disproportionately affects racial and ethnic minority women, especially in the US South. While CS is relatively easy and inexpensive to prevent through screening and treatment of pregnant women, CS cases have continued to rise and are concentrated in relatively few US counties and states. In 2010, Louisiana had the highest case rate in the country for primary, secondary, and congenital syphilis, with the highest number of CS cases in northwest Louisiana, where Shreveport is located. METHODS: We conducted qualitative interviews with community members (women and frontline providers) living in Caddo Parish to obtain their views about factors that negatively impact CS prevention. RESULTS: Participants described impediments in the pathways for prevention of CS. Lack of sexual and reproductive health education, discontinuities and fragmentation in health care insurance coverage, a dearth of referral points for prenatal care, and difficulty finding prenatal care providers who accept Medicaid can delay timely and adequate care for pregnant women. Providers reported that low reimbursement for necessary injections, and difficulty obtaining required medication challenged efforts to screen and treat pregnant women according to guidelines. CONCLUSIONS: Although CS is easily prevented, health system and policy obstacles in pathways to CS prevention and care may need remediation at state and local levels. |
Social vulnerability in congenital syphilis case mothers: Qualitative assessment of cases in Indiana, 2014-2016
DiOrio D , Kroeger K , Ross A . Sex Transm Dis 2018 45 (7) 447-451 BACKGROUND: Congenital syphilis occurs when a pregnant woman with syphilis is not diagnosed or treated and the infection is passed in utero, causing severe infant morbidity and mortality. Congenital syphilis is easily prevented if women receive timely and adequate prenatal care. Cases of congenital syphilis are considered indicators of problems in the safety net. However, maternal social and behavioral factors can impede women's care, even when providers follow guidelines. METHODS: We reviewed case interviews and maternal records for 23 congenital syphilis cases reported to CDC from Indiana between 2014 and 2016. We used qualitative methods to analyze narrative notes from maternal interviews to learn more about factors that potentially contributed to CS cases. RESULTS: All providers followed CDC and state recommendations for screening and treatment of pregnant women with syphilis. Twenty-one of 23 women had health insurance. The number of prenatal care visits women had was suboptimal; more than one third of women had no prenatal care. Nearly one third of women's only risk factor was sex with a primary male sex partner. The majority of women suffered social vulnerabilities, including homelessness, substance abuse, and incarceration. CONCLUSIONS: Despite provider adherence to guidelines and health insurance availability, some pregnant women with syphilis are unlikely to receive timely diagnosis and treatment. Pregnant women at high risk for syphilis may need additional social and material support to prevent a CS case. Additional efforts are needed to reach the male partners of vulnerable females with syphilis. |
Development of risk reduction behavioral counseling for Ebola virus disease survivors enrolled in the Sierra Leone Ebola Virus Persistence Study, 2015-2016
Abad N , Malik T , Ariyarajah A , Ongpin P , Hogben M , McDonald SLR , Marrinan J , Massaquoi T , Thorson A , Ervin E , Bernstein K , Ross C , Liu WJ , Kroeger K , Durski KN , Broutet N , Knust B , Deen GF . PLoS Negl Trop Dis 2017 11 (9) e0005827 BACKGROUND: During the 2014-2016 West Africa Ebola Virus Disease (EVD) epidemic, the public health community had concerns that sexual transmission of the Ebola virus (EBOV) from EVD survivors was a risk, due to EBOV persistence in body fluids of EVD survivors, particularly semen. The Sierra Leone Ebola Virus Persistence Study was initiated to investigate this risk by assessing EBOV persistence in numerous body fluids of EVD survivors and providing risk reduction counseling based on test results for semen, vaginal fluid, menstrual blood, urine, rectal fluid, sweat, tears, saliva, and breast milk. This publication describes implementation of the counseling protocol and the key lessons learned. METHODOLOGY/PRINCIPAL FINDINGS: The Ebola Virus Persistence Risk Reduction Behavioral Counseling Protocol was developed from a framework used to prevent transmission of HIV and other sexually transmitted infections. The framework helped to identify barriers to risk reduction and facilitated the development of a personalized risk-reduction plan, particularly around condom use and abstinence. Pre-test and post-test counseling sessions included risk reduction guidance, and post-test counseling was based on the participants' individual test results. The behavioral counseling protocol enabled study staff to translate the study's body fluid test results into individualized information for study participants. CONCLUSIONS/SIGNIFICANCE: The Ebola Virus Persistence Risk Reduction Behavioral Counseling Protocol provided guidance to mitigate the risk of EBOV transmission from EVD survivors. It has since been shared with and adapted by other EVD survivor body fluid testing programs and studies in Ebola-affected countries. |
Increase in urgent care center visits for sexually transmitted infections, United States, 2010-2014
Pearson WS , Tao G , Kroeger K , Peterman TA . Emerg Infect Dis 2017 23 (2) 367-369 During 2010-2014, urgent care centers saw a approximately 2-fold increase in the number of visits for chlamydia and gonorrhea testing and a >3-fold increase in visits by persons with diagnosed sexually transmitted infections. As urgent care becomes more popular, vigilance is required to ensure proper management of these diseases. |
Sexually transmitted disease program evolution in response to changes in the public health environment: A Massachusetts example
Carter MW , Hsu KK , Loosier PS , Maddox BLP , Doshi SR , Kroeger K , Cranston K . Sex Transm Dis 2016 43 (11) 668-672 Background In 2008, the line item supporting sexually transmitted disease (STD) services in the Massachusetts state budget was cut as a result of budget shortfalls. Shortly thereafter, direct provision of STD clinical services supported by the Massachusetts Department of Public Health (MDPH) was suspended. Massachusetts Department of Public Health requested an initial assessment of its internal response and impact in 2010. A follow-up assessment occurred in September 2013. Methods In 2010 and 2013, 39 and 46 staff, respectively, from MDPH and from clinical partner agencies, were interviewed about changes in the role of the MDPH, partnerships, STD services, challenges, and recommendations. Interview notes were summarized, analyzed, and synthesized by coauthors using qualitative analysis techniques and NVivo software. Results The withdrawal of state funding for STD services, and the subsequent reduction in clinical service hours, erected numerous barriers for Disease Intervention Specialists (DIS) seeking to ensure timely STD treatment for index cases and their partners. After initial instability, MDPH operations stabilized due partly to strong management, new staff, and intensified integration with human immunodeficiency virus services. Existing contracts with human immunodeficiency virus providers were leveraged to support alternative STD testing and care sites. Massachusetts Department of Public Health strengthened its clinical and epidemiologic expertise. The DIS expanded their scope of work and were outposted to select new sites. Challenges remained, however, such as a shortage of DIS staff to meet the needs. Conclusions Although unique in many ways, MA offers experiences and lessons for how a state STD program can adapt to a changing public health context. |
Providers' perspectives on program collaboration and service integration for persons who use drugs
Clark CD , Langkjaer S , Chinikamwala S , Joseph H , Semaan S , Clement J , Marshall R , Pevzner E , Truman BI , Kroeger K . J Behav Health Serv Res 2016 44 (1) 158-167 The structure and process of health care financing, delivery, and organization result in challenges for providers seeking to offer comprehensive and integrated care for persons who use drugs.1 The Affordable Care Act (ACA) is increasing coverage for mental health and substance abuse treatment as part of the Essential Health Benefits for Medicaid expansion and many private health plans.2,3 Community groups and scholars predict that increasing access to care under the ACA will likely require program collaboration among providers and integration of services in community health centers.2,3 Integration of services is also a part of clinical decision making systems.4 Without deliberate assessment and effective intervention, however, expanded coverage and service integration for persons who use drugs may fall short of expectations.5,6 The authors conducted a rapid assessment to obtain provider perspectives of program collaboration and service integration (PCSI) for substance abuse and mental health, prevention of HIV infection, viral hepatitis, sexually transmitted diseases (STDs), and tuberculosis (TB) for persons who use drugs in Atlanta, GA. Rapid assessments are an approach to qualitative data collection used to quickly gain the “insider’s” perspective of local phenomena and a preliminary understanding of emerging issues. Findings from rapid assessments are often used to inform and make necessary program adjustments.7,8 | Program collaboration has been defined as two or more organizations developing procedures for pooling resources and sharing responsibilities to meet the common goal of providing more comprehensive health services.9 Service integration refers to delivery of different services provided by multiple programs to patients or clients through a single entry point.9 Delivery of evidence-based public health intervention strategies through a collaborative and integrated model can increase access to services, accelerate service delivery, and enhance prevention of infectious diseases among persons who use drugs.1 Building on the PCSI literature,1,9 this report describes the perspectives of health care providers implementing PCSI in Atlanta, GA. The authors describe program collaboration structures, the extent to which integrated services were being delivered by providers, and providers’ assessment of factors influencing PCSI implementation for persons who use drugs. The paper concludes with broader implications of this assessment for PCSI implementation. |
Assessment: a core function for implementing effective interventions in sexually transmitted disease control programs
Kroeger K , Torrone E , Nelson R . Sex Transm Dis 2015 43 S3-7 Assessment is a core function in sexually transmitted disease (STD) prevention and control programs. Assessment is more than reviewing case report data; it includes taking into consideration an array of data of various sources and types to be able to respond to emerging disease threats, align human and financial resources, and plan for the future. In this article, we outline key assessment domains, data sources, activities, and methods for STD programs. We present an illustrative case study of how assessment can be used to identify effective interventions for STD control. |
Use of insecticide-treated house screens to reduce infestations of dengue virus vectors, Mexico
Manrique-Saide P , Che-Mendoza A , Barrera-Perez M , Guillermo-May G , Herrera-Bojorquez J , Dzul-Manzanilla F , Gutierrez-Castro C , Lenhart A , Vazquez-Prokopec G , Sommerfeld J , McCall PJ , Kroeger A , Arredondo-Jimenez JI . Emerg Infect Dis 2015 21 (2) 308-11 Dengue prevention efforts rely on control of virus vectors. We investigated use of insecticide-treated screens permanently affixed to windows and doors in Mexico and found that the screens significantly reduced infestations of Aedes aegypti mosquitoes in treated houses. Our findings demonstrate the value of this method for dengue virus vector control. |
Long-lasting insecticide-treated house screens and targeted treatment of productive breeding-sites for dengue vector control in Acapulco, Mexico
Che-Mendoza A , Guillermo-May G , Herrera-Bojorquez J , Barrera-Perez M , Dzul-Manzanilla F , Gutierrez-Castro C , Arredondo-Jimenez JI , Sanchez-Tejeda G , Vazquez-Prokopec G , Ranson H , Lenhart A , Sommerfeld J , McCall PJ , Kroeger A , Manrique-Saide P . Trans R Soc Trop Med Hyg 2015 109 (2) 106-15 BACKGROUND: Long-lasting insecticidal net screens (LLIS) fitted to domestic windows and doors in combination with targeted treatment (TT) of the most productive Aedes aegypti breeding sites were evaluated for their impact on dengue vector indices in a cluster-randomised trial in Mexico between 2011 and 2013. METHODS: Sequentially over 2 years, LLIS and TT were deployed in 10 treatment clusters (100 houses/cluster) and followed up over 24 months. Cross-sectional surveys quantified infestations of adult mosquitoes, immature stages at baseline (pre-intervention) and in four post-intervention samples at 6-monthly intervals. Identical surveys were carried out in 10 control clusters that received no treatment. RESULTS: LLIS clusters had significantly lower infestations compared to control clusters at 5 and 12 months after installation, as measured by adult (male and female) and pupal-based vector indices. After addition of TT to the intervention houses in intervention clusters, indices remained significantly lower in the treated clusters until 18 (immature and adult stage indices) and 24 months (adult indices only) post-intervention. CONCLUSIONS: These safe, simple affordable vector control tools were well-accepted by study participants and are potentially suitable in many regions at risk from dengue worldwide. |
Internet-based partner services in US sexually transmitted disease prevention programs: 2009-2013
Moody V , Hogben M , Kroeger K , Johnson J . J Public Health Manag Pract 2015 21 (6) 526-30 BACKGROUND: Social networking sites have become increasingly popular venues for meeting sex partners. Today, some sexually transmitted disease (STD) programs conduct Internet-based partner services (IPS). The purpose of the study was to explore how the Internet is being used by STD prevention programs to perform partner services. METHODS: We assessed US STD prevention programs receiving funds through the 2008-2013 Comprehensive STD Prevention Systems cooperative agreement. We (1) reviewed 2009 IPS protocols in 57 funding applications against a benchmark of national guidelines and (2) surveyed persons who conducted IPS in jurisdictions conducting IPS in 2012. RESULTS: Of the 57 project areas receiving Comprehensive STD Prevention Systems funds, 74% provided an IPS protocol. States with IPS protocols had larger populations and more gonorrhea and syphilis cases (t = 2.2-2.6; all Ps < .05), although not higher rates of infection. Most protocols included staffing (92%) and IPS documentation (87%) requirements, but fewer had evaluation plans (29%) or social networking site engagement strategies (16%). Authority to perform a complete range of IPS activities (send e-mail, use social networking sites) was associated with contacting more partners via IPSs (P < .05). CONCLUSIONS: This study provides a snapshot of IPS activities in STD programs in the United States. Further research is needed to move from assessment to generating data that can assist training efforts and program action and, finally, to enable efficient IPS programs that are integrated into STD prevention and control efforts. |
HIV risk perception and behavior among sex workers in three major urban centers of Mozambique
Langa J , Sousa C , Sidat M , Kroeger K , McLellan-Lemal E , Belani H , Patel S , Shodell D , Shodell M , Benech I , Needle R . PLoS One 2014 9 (4) e94838 HIV risk perceptions and behaviors of 236 commercial sex workers from three major Mozambican urban centers were studied using the International Rapid Assessment, Response and Evaluation (I-RARE) methodology. All were offered HIV testing and, in Maputo, syphilis testing was offered as well. Sixty-three of the 236 opted for HIV testing, with 30 (48%) testing positive for HIV. In Maputo, all 30 receiving HIV tests also had syphilis testing, with 6 (20%) found to be positive. Results include interview excerpts and qualitative results using I-RARE methodology and AnSWR-assisted analyses of the interviews and focus group sessions. |
Dogma in classifying dengue disease
Farrar JJ , Hien TT , Horstick O , Hung NT , Jaenisch T , Junghanns T , Kroeger A , Laksono IS , Lum L , Martinez E , Simmons CP , Tami A , Tomashek KM , Wills BA . Am J Trop Med Hyg 2013 89 (2) 198-201 In his recent perspective entitled Dengue: the Syndromic Basis to Pathogenesis Research, Inutility of the 2009 WHO Case Definition, Halstead expresses concern that adoption of the 2009 World Health Organization (WHO) classification scheme will compromise the “analytic clarity needed to understand mechanisms underlying dengue pathophysiology, pathogenesis, treatment, and therapeutics.”1 Leaving aside the important issue of how best to resolve the long running and convoluted debate on dengue case definitions and classification, two important misconceptions need to be addressed. | First, rather than being a research tool, the 2009 WHO dengue classification scheme is primarily intended to be used by clinicians and public health specialists engaged in dealing with the ever-expanding global pandemic of dengue disease.2,3 The main objectives of the classification scheme are to improve case management by timely identification of severe or potentially severe cases, and to ensure that scarce resources are directed towards those most in need. The simplicity and sensitivity of the classification scheme should enable the complete clinical spectrum of dengue to be captured by surveillance systems and enhance the comparability of epidemiologic data gathered over time from different countries and regions. If, in addition, the new system provides a valid framework for scientific research on dengue pathogenesis, this feature should be regarded as a bonus. |
Integrated prevention services for HIV infection, viral hepatitis, sexually transmitted diseases, and tuberculosis for persons who use drugs illicitly: summary guidance from CDC and the U.S. Department of Health and Human Services
Belani H , Chorba T , Fletcher F , Hennessey K , Kroeger K , Lansky A , Leichliter J , Lentine D , Mital S , Needle R , O'Connor K , Oeltmann J , Pevzner E , Purcell D , Sabin M , Semaan S , Sharapov U , Smith B , Vogt T , Wynn BA . MMWR Recomm Rep 2012 61 1-40 This report summarizes current (as of 2011) guidelines or recommendations published by multiple agencies of the U.S. Department of Health and Human Services (DHHS) for prevention and control of human immunodeficiency virus (HIV) infection, viral hepatitis, sexually transmitted diseases (STDs), and tuberculosis (TB) for persons who use drugs illicitly. It also summarizes existing evidence of effectiveness for practices to support delivery of integrated prevention services. Implementing integrated services for prevention of HIV infection, viral hepatitis, STDs, and TB is intended to provide persons who use drugs illicitly with increased access to services, to improve timeliness of service delivery, and to increase effectiveness of efforts to prevent infectious diseases that share common risk factors, behaviors, and social determinants. This guidance is intended for use by decision makers (e.g., local and federal agencies and leaders and managers of prevention and treatment services), health-care providers, social service providers, and prevention and treatment support groups. Consolidated guidance can strengthen efforts of health-care providers and public health providers to prevent and treat infectious diseases and substance use and mental disorders, use resources efficiently, and improve health-care services and outcomes in persons who use drugs illicitly. An integrated approach to service delivery for persons who use drugs incorporates recommended science-based public health strategies, including 1) prevention and treatment of substance use and mental disorders; 2) outreach programs; 3) risk assessment for illicit use of drugs; 4) risk assessment for infectious diseases; 5) screening, diagnosis, and counseling for infectious diseases; 6) vaccination; 7) prevention of mother-to-child transmission of infectious diseases; 8) interventions for reduction of risk behaviors; 9) partner services and contact follow-up; 10) referrals and linkage to care; 11) medical treatment for infectious diseases; and 12) delivery of integrated prevention services. These strategies are science-based, public health strategies to prevent and treat infectious diseases, substance use disorders, and mental disorders. Treatment of infectious diseases and treatment of substance use and mental disorders contribute to prevention of transmission of infectious diseases. Integrating prevention services can increase access to and timeliness of prevention and treatment. |
Exposure to and deposition of fine and ultrafine particles in smokers of menthol and nonmenthol cigarettes
Brinkman MC , Chuang JC , Gordon SM , Kim H , Kroeger RR , Polzin GM , Richter PA . Inhal Toxicol 2012 24 (5) 255-69 INTRODUCTION: Research on the deposition of mainstream smoke particulate in the respiratory tract of smokers is needed to understand how exposure may vary based on cigarette menthol content. METHODS: We conducted a nine-participant crossover study in which smokers were randomly assigned to cigarettes differing primarily in menthol content. Participants smoked the test cigarettes ad libitum for one week, provided spot urine samples, and then smoked four test cigarettes in a laboratory session; this was repeated for the other test cigarette in week two. Fine and ultrafine particulate matter in exhaled breath were characterized, and smoking behavior was monitored. Participant-specific mainstream smoke, generated using each participant's topography data, was characterized. During home smoking, participants collected their spent test cigarette butts for estimates of mouth-level exposures (MLE) to mainstream nicotine and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK). RESULTS: Participant-specific mainstream smoke NNK was higher (39%) and daily MLE to NNK was also higher (52%) when participants smoked the menthol cigarette. Nicotine was not significantly different. Participants retained more ultrafine particulate (43%) and fine particulate benzo(a)pyrene (43%) when smoking the menthol cigarette. There were no significant differences in the levels of urinary biomarkers for nicotine, NNK, or pyrene. CONCLUSION: This study demonstrates the use of noninvasive real-time techniques to measure exposure differences between cigarettes differing primarily in menthol content. Differences between NNK exposure, ultrafine particle and benzo(a)pyrene deposition, and smoking behavior were observed. Additional research using these techniques with cigarettes that differ only in menthol content is required to unequivocally attribute the exposure differences to presence or absence of menthol. |
Comparison of insecticide-treated nets and indoor residual spraying to control the vector of visceral leishmaniasis in Mymensingh District, Bangladesh
Chowdhury R , Dotson E , Blackstock AJ , McClintock S , Maheswary NP , Faria S , Islam S , Akter T , Kroeger A , Akhter S , Bern C . Am J Trop Med Hyg 2011 84 (5) 662-667 Integrated vector management is a pillar of the South Asian visceral leishmaniasis (VL) elimination program, but the best approach remains a matter of debate. Sand fly seasonality was determined in 40 houses sampled monthly. The impact of interventions on Phlebotomus argentipes density was tested from 2006-2007 in a cluster-randomized trial with four arms: indoor residual spraying (IRS), insecticide-treated nets (ITNs), environmental management (EVM), and no intervention. Phlebotomus argentipes density peaked in March with the highest proportion of gravid females in May. The EVM (mud plastering of wall and floor cracks) showed no impact. The IRS and ITNs were associated with a 70-80% decrease in male and female P. argentipes density up to 5 months post intervention. Vector density rebounded by 11 months post-IRS, whereas ITN-treated households continued to show significantly lower density compared with households without intervention. Our data suggest that both IRS and ITNs may help to improve VL control in Bangladesh. |
Rapid assessment of HIV risk behavior in drug using sex workers in three cities in South Africa
Parry CD , Dewing S , Petersen P , Carney T , Needle R , Kroeger K , Treger L . AIDS Behav 2009 13 (5) 849-59 A rapid assessment was undertaken with drug using commercial sex workers (CSWs) to investigate practices putting them at risk for contracting HIV. It included key informant (KI) (N = 67) and focus group (N = 10) interviews in locations with a high prevalence of drug use in Cape Town, Durban and Pretoria, South Africa. HIV testing of KIs was conducted. Cocaine, Ecstasy, heroin and methaqualone are used by CSWs prior to, during and after sex. Drugs enhance the sexual experience and prolong sex sessions. Interviews revealed inconsistent condom use among CSWs together with other risky sexual practices such as needle sharing. Among CSWs who agreed to HIV testing, 34% tested positive. Barriers to accessing drug treatment and HIV treatment and preventive services were identified. Interventions recognizing the role of drug abuse in HIV transmission should be prioritized, and issues of access to services, stigma and power relations must be considered. |
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