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2.
Nat Microbiol ; 9(2): 377-389, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38263454

RESUMO

Buruli ulcer, a chronic subcutaneous infection caused by Mycobacterium ulcerans, is increasing in prevalence in southeastern Australia. Possums are a local wildlife reservoir for M. ulcerans and, although mosquitoes have been implicated in transmission, it remains unclear how humans acquire infection. We conducted extensive field survey analyses of M. ulcerans prevalence among mosquitoes in the Mornington Peninsula region of southeastern Australia. PCR screening of trapped mosquitoes revealed a significant association between M. ulcerans and Aedes notoscriptus. Spatial scanning statistics revealed overlap between clusters of M. ulcerans-positive Ae. notoscriptus, M. ulcerans-positive possum excreta and Buruli ulcer cases, and metabarcoding analyses showed individual mosquitoes had fed on humans and possums. Bacterial genomic analysis confirmed shared single-nucleotide-polymorphism profiles for M. ulcerans detected in mosquitoes, possum excreta and humans. These findings indicate Ae. notoscriptus probably transmit M. ulcerans in southeastern Australia and highlight mosquito control as a Buruli ulcer prevention measure.


Assuntos
Aedes , Úlcera de Buruli , Mycobacterium ulcerans , Animais , Humanos , Úlcera de Buruli/epidemiologia , Úlcera de Buruli/genética , Úlcera de Buruli/microbiologia , Mycobacterium ulcerans/genética , Austrália , Genoma Bacteriano , Aedes/genética
3.
Can J Public Health ; 115(1): 8-14, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38087186

RESUMO

The criminalization of HIV non-disclosure represents a significant issue of concern among people living with HIV, those working across the HIV sector, public health practitioners, and health and human rights advocates around the world. Recently, the government of Canada began a review of the criminal law regarding HIV non-disclosure and invited feedback from the public about potential reforms to the Criminal Code. In light of this public consultation, this commentary examines social science research from Canadian scholars that documents the intersecting damaging effects of HIV criminalization. Canadian social scientists and other researchers have shown that HIV criminalization is applied in uneven and discriminatory ways, impedes HIV prevention efforts, perpetuates HIV stigma, and has a damaging impact on the daily lives of people living with HIV. We argue that there is an urgent need for reforms that will significantly restrict how the criminal law is applied to HIV non-disclosure.


RéSUMé: La criminalisation de la non-divulgation du VIH est une question très préoccupante pour les personnes vivant avec le VIH, celles qui travaillent dans le secteur du VIH, les praticiens et praticiennes de la santé publique et les porte-parole de la santé et des droits de la personne du monde entier. Récemment, le gouvernement du Canada a amorcé un examen du droit criminel portant sur la non-divulgation du VIH et a invité le public à commenter d'éventuelles réformes du Code criminel. À la lumière de cette consultation publique, notre commentaire porte sur les études en sciences sociales menées au Canada qui font état des effets croisés préjudiciables de la criminalisation du VIH. Des spécialistes des sciences sociales et d'autres chercheuses et chercheurs canadiens ont montré que la criminalisation du VIH est appliquée de façon inégale et discriminatoire, qu'elle nuit aux efforts de prévention du VIH, qu'elle perpétue la stigmatisation liée au VIH et qu'elle a des effets dommageables sur la vie quotidienne des personnes vivant avec le VIH. Nous soutenons qu'il existe un besoin urgent de réformes pour restreindre de façon appréciable l'application du droit criminel à la non-divulgation du VIH.


Assuntos
Criminosos , Infecções por HIV , Humanos , Canadá/epidemiologia , Infecções por HIV/prevenção & controle , Saúde Pública , Direito Penal
4.
PLoS One ; 18(3): e0282484, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36857373

RESUMO

Access to cultural activities and culturally relevant healthcare has always been significant for achieving holistic Indigenous health and continues to be a key factor in shaping the health journey of Indigenous individuals and communities. Previous research has indicated the importance of cultural practices and services in sustaining cultural identity for Indigenous peoples, which is a major influence on their wellbeing. This study marks the first phase in a project aimed at establishing an Indigenous healing program and uses a qualitative research approach to understand the health and cultural services that Indigenous women want and require in Thunder Bay, Ontario. During interviews, participants (n = 22) answered questions around their understandings of health and wellbeing, and how they are able to incorporate cultural practices into their circle of care. Thematic analysis was performed on interview transcripts, and 4 key themes were identified: 'independence and self-care', 'external barriers to accessing services', 'finding comfort in the familiar' and 'sense of community'. Together these themes illustrate how Indigenous women feel a strong sense of personal responsibility for maintaining their health despite the multiple environmental factors that may act as barriers or supports. Furthermore, the necessity of embedding cultural practices into Indigenous women's circle of care is highlighted by the participants as they describe the mental, spiritual, social, and emotional health benefits of engaging in cultural activities within their community. The findings demonstrate the need for current modes of care to look beyond the individual and consider the impacts that socio-environmental factors have on Indigenous women. To accomplish this, we hope to increase access to health and cultural services through the creation of an Indigenous healing program that can be adequately incorporated into Indigenous women's circle of care if they wish to do so.


Assuntos
Baías , Emoções , Humanos , Feminino , Ontário , Instalações de Saúde , Saúde Holística
5.
Ecol Evol ; 11(18): 12453-12467, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34594512

RESUMO

White-nose syndrome (WNS) is a disease caused by the fungus Pseudogymnoascus destructans which has resulted in the deaths of millions of bats across eastern North America. To date, hibernacula counts have been the predominant means of tracking the spread and impact of this disease on bat populations. However, an understanding of the impacts of WNS on demographic parameters outside the winter season is critical to conservation and recovery of bat populations impacted by this disease. We used long-term monitoring data to examine WNS-related impacts to summer populations in West Virginia, where WNS has been documented since 2009. Using capture data from 290 mist-net sites surveyed from 2003 to 2019 on the Monongahela National Forest, we estimated temporal patterns in presence and relative abundance for each bat species. For species that exhibited a population-level response to WNS, we investigated post-WNS changes in adult female reproductive state and body mass. Myotis lucifugus (little brown bat), M. septentrionalis (northern long-eared bat), and Perimyotis subflavus (tri-colored bat) all showed significant decreases in presence and relative abundance during and following the introduction of WNS, while Eptesicus fuscus (big brown bat) and Lasiurus borealis (eastern red bat) responded positively during the WNS invasion. Probability of being reproductively active was not significantly different for any species, though a shift to earlier reproduction was estimated for E. fuscus and M. septentrionalis. For some species, body mass appeared to be influenced by the WNS invasion, but the response differed by species and reproductive state. Results suggest that continued long-term monitoring studies, additional research into impacts of this disease on the fitness of WNS survivors, and a focus on providing optimal nonwintering habitat may be valuable strategies for assessing and promoting recovery of WNS-affected bat populations.

6.
Cult Health Sex ; 23(6): 788-803, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-32379006

RESUMO

This paper explores newspaper coverage of HIV non-disclosure criminal cases in Canada in which defendants are Black immigrant men living with HIV. We base our analysis on a corpus of 1680 English-language Canadian newspaper articles written between 1989 and 2015. For the first time ever, we present quantitative evidence of the dramatic overrepresentation of Black men in such coverage. We also provide an analysis of the racialised regime of representation found in this material. We emphasise how 'writing in criminal justice time' operates as a first-order objectification within which are embedded strategies that link constructions of moral blameworthiness with representations of racialised difference. The result is a type of popular racial profiling in which HIV non-disclosure is treated as a crime of Black men who are represented as dangerous, hypersexual foreigners who threaten the health and safety of the public and, more broadly, the imagined Canadian nation.


Assuntos
Criminosos , Emigrantes e Imigrantes , Infecções por HIV , Negro ou Afro-Americano , Canadá , Humanos , Masculino
7.
Health Place ; 66: 102445, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-33032242

RESUMO

In Canada rural and northern communities, particularly Indigenous communities, face challenges disproportionate to their urban counterparts in accessing health care services. Existing health research on rural communities has tended to emphasize and reinforce the rural/urban dichotomy in access to and delivery of services, leaving the notion of "rural" as an under-interrogated concept. Drawing on a qualitative study of health care providers, community members, and Indigenous Elders, we explore Indigenous people's beliefs about vaccination to complicate notions of rurality in order to illuminate the ways in which space and settler colonialism both shape and limit choices around health care access.


Assuntos
Colonialismo , População Rural , Idoso , Acessibilidade aos Serviços de Saúde , Humanos , Povos Indígenas , Ontário
8.
J Interprof Care ; 34(5): 672-678, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32962462

RESUMO

The COVID-19 pandemic has presented both challenges and opportunities for those working in health and social care in the United Kingdom (UK). With much focus on secondary and acute care at this time, there has been less communication and understanding about the impact on primary care. This discussion paper is based on the experience of one of the authors working as a general practitioner/family doctor during the pandemic and rapid changes are described during this time (April 2020). Two important themes emerged from this experience focusing on the importance of supporting one another and new roles and ways of working. It can be argued that the challenges presented by COVID-19 have expedited positive and potentially sustainable change in UK primary care that has been needed for some time. The authors discuss the implications for future working and make a series of recommendations for primary care relating to the importance of supporting the workforce, remote consultations and communication, regular team meetings, and development of integrated care. It is suggested that many of the challenges highlighted can be addressed by placing a greater emphasis on the use of interprofessional education (IPE) to underpin and support effective collaborative working.


Assuntos
Infecções por Coronavirus , Relações Interprofissionais , Pandemias , Pneumonia Viral , Atenção Primária à Saúde , Betacoronavirus , COVID-19 , Prestação Integrada de Cuidados de Saúde , Comportamento de Busca de Ajuda , Humanos , Comunicação Interdisciplinar , Equipe de Assistência ao Paciente , Pobreza , Papel Profissional , Consulta Remota , SARS-CoV-2 , Reino Unido
9.
Artigo em Inglês | MEDLINE | ID: mdl-32545798

RESUMO

Personal identification (PID) is an important, if often overlooked, barrier to accessing the social determinants of health for many marginalized people in society. A scoping review was undertaken to explore the range of research addressing the role of PID in the social determinants of health in North America, barriers to acquiring and maintaining PID, and to identify gaps in the existing research. A systematic search of academic and gray literature was performed, and a thematic analysis of the included studies (n = 31) was conducted. The themes identified were: (1) gaining and retaining identification, (2) access to health and social services, and (3) facilitating identification programs. The findings suggest a paucity of research on PID services and the role of PID in the social determinants of health. We contend that research is urgently required to build a more robust understanding of existing PID service models, particularly in rural contexts, as well as on barriers to accessing and maintaining PID, especially among the most marginalized groups in society.


Assuntos
Cartões Inteligentes de Saúde , População Rural , Determinantes Sociais da Saúde , Acessibilidade aos Serviços de Saúde , Humanos , América do Norte , Serviço Social
10.
Microbiol Resour Announc ; 8(41)2019 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-31601661

RESUMO

Here, we report the first complete genome of a bovine ephemeral fever virus (BEFV) isolate from an infected bovine in Israel. The genome shares 95.3% identity with a Turkish genomic sequence but contains α3 and γ open reading frames that are truncated compared to those of existing BEFV genome sequences.

11.
Artigo em Inglês | MEDLINE | ID: mdl-30781459

RESUMO

Under international law, birth registration is considered a human right because it determines access to important legal protections as well as essential services and social supports across the lifespan. Difficulties related to birth registration and the acquisition of personal identification (PID) are largely regarded as problems specific to low-income countries. For Indigenous people in northern and rural Canada, however, lack of PID, like birth certificates, is a common problem that is rooted in the geography of the region as well as historical and contemporary settler colonial policies. This communication elucidates the complicated terrain of unregistered births for those people living in northern Ontario in order to generate discussion about how the social determinants of health for Indigenous people in Canada are affected by PID. Drawing on intake surveys, qualitative interviews and participant observation field notes, we use the case study of "Susan" as an entry point to share insights into the "intergenerational problem" of unregistered births in the region. Susan's case speaks to how unregistered births and lack of PID disproportionately impacts the health and well-being of Indigenous people and communities in northern Ontario. The implications and the need for further research on this problem in Canada are discussed.


Assuntos
Declaração de Nascimento , Indígenas Norte-Americanos/etnologia , População Rural , Feminino , Direitos Humanos , Humanos , Ontário , Pobreza , Determinantes Sociais da Saúde , Apoio Social , Inquéritos e Questionários
12.
Qual Health Res ; 29(1): 32-41, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30799764

RESUMO

Health sociologists interested in how macro state influences affect micro health care practices have much to gain from meta-ethnography research. In this article, we bring together insights from two separate empirical studies on state health care services involving HIV/AIDS as a way to speak to larger issues about the organization and production of medical expertise and governance in health care systems. We use Noblit and Hare's meta-ethnography approach to bring these studies into conversation and identify six shared "organizers" of health care encounters. The organizers illustrate how state health interests operate across institutional contexts and impact the work of providers in seemingly unrelated health care settings. On the basis of this synthesis, we conclude that state interests both structure and create conflict in health care settings. We believe this perspective offers the potential to advance the goals of health sociology and the field of qualitative health research in general.


Assuntos
Atenção à Saúde/organização & administração , Infecções por HIV/psicologia , Infecções por HIV/terapia , Enfermeiros de Saúde Pública/organização & administração , Medicina Estatal/organização & administração , Síndrome da Imunodeficiência Adquirida , Antropologia Cultural , Canadá , Atenção à Saúde/ética , Atenção à Saúde/normas , Revelação , Emigrantes e Imigrantes , Humanos , Papel do Profissional de Enfermagem , Enfermeiros de Saúde Pública/ética , Pesquisa Qualitativa , Sociologia Médica , Medicina Estatal/ética , Medicina Estatal/normas
13.
Pulm Med ; 2018: 2836389, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30254761

RESUMO

RATIONALE: Individuals with a single Z mutation in the SERPINA1 gene that codes for alpha-1 antitrypsin (AAT) are at increased risk for COPD if they have ever-smoked. Whether additional variants alter the risk for COPD in this population remains unknown. OBJECTIVES: To determine whether additional SERPINA1 variants impact COPD development in a previously identified MZ (carrier) cohort. METHODS: Individuals with prior MZ results and AAT serum level <16uM were recruited from the Alpha-1 Coded Testing study and Alpha-1 Foundation Research Registry. Participants completed smoking history, demographics, and COPD Severity Score (Range 0-33) using REDCap data capture. At-home finger-stick tests were performed for next generation sequencing (NGS) at the Biocerna LLC laboratory. A genetic counselor reviewed records and interviewed participants with additional variants by NGS. A Wilcoxon Rank Sum test was used to assess correlation between variants and the COPD severity score. RESULTS: A second SERPINA1 variant of known or possible significance was identified in 6 (5.8%) participants. One each of ZZ, SZ, FZ, ZSmunich, ZM2obernburg, and Z/c.922G>T genotypes were identified. ZZ, SZ, and FZ are known pathogenic genotypes. Smunich is a likely pathogenic variant. M2obernburg and c.922G>T are variants of uncertain significance. The ZZ individual was on augmentation therapy when determined MZ by protease inhibitor (Pi) phenotyping; the others had limited targeted genotyping with MZ results. These six participants with biallelic variants had positive COPD severity scores >1. Presence of additional variants was not significantly associated with COPD symptoms in this small sample size. CONCLUSIONS: Some diagnosed MZ individuals instead have biallelic variants. Larger studies are needed to determine COPD-risk liability of variants. Accurate diagnosis impacts medical management and familial risk assessment. Pi phenotyping can be confounded by augmentation therapy and liver transplantation. Because a normal M allele may be reported in the absence of tested mutation(s) in AATD genotyping, clinicians should consider clinical circumstances and laboratory methods when selecting and interpreting AATD tests. Advanced testing, including NGS, may be beneficial for select individuals with prior MZ results. CLINICAL TRIAL REGISTRATION: This study was registered with clinicaltrials.gov (NCT NCT02810327).


Assuntos
Mutação/genética , Doença Pulmonar Obstrutiva Crônica/genética , alfa 1-Antitripsina/genética , Adolescente , Adulto , Idoso , Feminino , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco
14.
AIDS Behav ; 22(6): 1814-1825, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28013400

RESUMO

This study examined social and health-related correlates of AIDS conspiracy theories among 464 African American men who have sex with men (MSM). Exploratory factor analysis revealed two subscales within the AIDS conspiracy beliefs scale: medical mistrust and AIDS genocidal beliefs. Multiple regression analyses revealed medical mistrust and AIDS genocidal beliefs were both associated negative condom use attitudes and higher levels of internalized homonegativity. Medical mistrust was also associated with lower knowledge of HIV risk reduction strategies. Finally, we conducted bivariate regressions to examine the subsample of participants who reported being HIV-positive and currently taking HIV antiretroviral therapy (ART) to test associations between sexual behavior and HIV treatment and AIDS conspiracy theories. Among this subsample, medical mistrust was associated with having a detectable viral load and not disclosing HIV-status to all partners in the previous 3 months. Collectively, these findings have implications for HIV prevention and treatment for African American MSM.


Assuntos
Negro ou Afro-Americano/psicologia , Cultura , Infecções por HIV/etnologia , Conhecimentos, Atitudes e Prática em Saúde , Homossexualidade Masculina/psicologia , Confiança , Adulto , Negro ou Afro-Americano/etnologia , Fármacos Anti-HIV/administração & dosagem , Antirretrovirais/uso terapêutico , Atitude Frente a Saúde , Preservativos/estatística & dados numéricos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/psicologia , Homossexualidade Masculina/etnologia , Humanos , Masculino , Pessoa de Meia-Idade , Assunção de Riscos , Comportamento Sexual , Parceiros Sexuais , Estados Unidos
15.
AIDS Educ Prev ; 29(1): 62-76, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28195783

RESUMO

Older adults with HIV/AIDS living in rural areas face unique challenges to accessing HIV care and medications, and suffer greater mortality than non-rural HIV-infected individuals. This qualitative study examined the intersection of aging and HIV to identify factors that affect overall health, engagement in care, and medication adherence among this understudied population. Qualitative interviews were conducted by phone with 29 HIV-positive adults over the age of 50 living in U.S. rural counties and analyzed using thematic content analysis. Individuals reported complex medical needs in addition to their HIV and noted difficulty discerning whether symptoms were associated with HIV or aging. Although reported medication adherence rates were high, participants also cited several barriers to maintaining adherence. Given the increase in rural individuals living with HIV, interventions are needed to address the complex intersection of aging and HIV, especially for those in rural environments.


Assuntos
Envelhecimento , Infecções por HIV/psicologia , Acessibilidade aos Serviços de Saúde , Adesão à Medicação , Polimedicação , População Rural , Adulto , Idoso , Alabama , Doença Crônica/epidemiologia , Comorbidade , Feminino , Infecções por HIV/epidemiologia , Disparidades nos Níveis de Saúde , Humanos , Entrevistas como Assunto , Masculino , Pessoa de Meia-Idade , Relações Médico-Paciente , Pesquisa Qualitativa , Tennessee , Vermont , Wisconsin
16.
PLoS Pathog ; 11(5): e1004900, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25993603

RESUMO

Arenaviruses are one of the largest families of human hemorrhagic fever viruses and are known to infect both mammals and snakes. Arenaviruses package a large (L) and small (S) genome segment in their virions. For segmented RNA viruses like these, novel genotypes can be generated through mutation, recombination, and reassortment. Although it is believed that an ancient recombination event led to the emergence of a new lineage of mammalian arenaviruses, neither recombination nor reassortment has been definitively documented in natural arenavirus infections. Here, we used metagenomic sequencing to survey the viral diversity present in captive arenavirus-infected snakes. From 48 infected animals, we determined the complete or near complete sequence of 210 genome segments that grouped into 23 L and 11 S genotypes. The majority of snakes were multiply infected, with up to 4 distinct S and 11 distinct L segment genotypes in individual animals. This S/L imbalance was typical: in all cases intrahost L segment genotypes outnumbered S genotypes, and a particular S segment genotype dominated in individual animals and at a population level. We corroborated sequencing results by qRT-PCR and virus isolation, and isolates replicated as ensembles in culture. Numerous instances of recombination and reassortment were detected, including recombinant segments with unusual organizations featuring 2 intergenic regions and superfluous content, which were capable of stable replication and transmission despite their atypical structures. Overall, this represents intrahost diversity of an extent and form that goes well beyond what has been observed for arenaviruses or for viruses in general. This diversity can be plausibly attributed to the captive intermingling of sub-clinically infected wild-caught snakes. Thus, beyond providing a unique opportunity to study arenavirus evolution and adaptation, these findings allow the investigation of unintended anthropogenic impacts on viral ecology, diversity, and disease potential.


Assuntos
Infecções por Arenaviridae/veterinária , Arenavirus/genética , Transmissão de Doença Infecciosa/veterinária , Rearranjo Gênico , Recombinação Genética , Serpentes/virologia , Animais , Animais de Zoológico/sangue , Animais de Zoológico/metabolismo , Animais de Zoológico/virologia , Infecções por Arenaviridae/metabolismo , Infecções por Arenaviridae/patologia , Infecções por Arenaviridae/virologia , Arenavirus/isolamento & purificação , Arenavirus/fisiologia , Sequência de Bases , Boidae/virologia , Células Cultivadas , Genoma Viral , Fígado/metabolismo , Fígado/patologia , Fígado/virologia , Dados de Sequência Molecular , Animais de Estimação/sangue , Animais de Estimação/metabolismo , Animais de Estimação/virologia , Filogenia , RNA Viral/sangue , RNA Viral/química , RNA Viral/metabolismo , Serpentes/sangue , Serpentes/metabolismo , Estados Unidos , Replicação Viral
17.
J Surg Educ ; 71(4): 480-5, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24776880

RESUMO

OBJECTIVE: The purpose of this study was to analyze the decay of information with multiple sequential patient handoff reports given by third-year medical students who have not had standardized patient handoff training. METHODS: We examine the information decay of quantitative parameters included in 2 different simulated patient history and physical handoffs conducted among third-year medical students. Both student self-surveys and third party observer surveys tracked accuracy of information. A total of 93 students were surveyed for the first patient scenario and 103 students were surveyed for second patient scenario. Survey data were aggregated into 2 separate spreadsheets, one for each patient scenario tested. A total of 16 data points pertaining to the checklist were analyzed for common trends in handoff accuracy and information decay. RESULTS: Quantitative analysis of information passed between handoffs showed that between the 2 case scenarios, there was a consistent loss of information between one presenter to the next. Overall, 33% of information was lost between the first and third handoffs. Within the progression of individual handoffs, a narrative decay was demonstrated. There was a regression in handoff accuracy, trending down to an average of only 45% of information being passed on successfully by the time each presenter reached the last piece of information in their patient presentation. When examining the survey data points that had greater than an 80% success rate of being included in the handoffs, there appeared to be no correlation between their inherent qualities. CONCLUSIONS: This study showed there is a significant decrease in accuracy of information during sequential patient handoff exercises. The information decay may be a result of time, memory, or relevance of the information to the student. Future studies incorporating teaching effective handoffs early in the clinical curriculum would be an area of future research.


Assuntos
Transferência da Responsabilidade pelo Paciente , Adulto , Lista de Checagem , Competência Clínica/normas , Comunicação , Humanos , Disseminação de Informação , Erros Médicos/prevenção & controle , Transferência da Responsabilidade pelo Paciente/organização & administração , Transferência da Responsabilidade pelo Paciente/normas , Transferência da Responsabilidade pelo Paciente/estatística & dados numéricos , Estudantes de Medicina
18.
mBio ; 3(4): e00180-12, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22893382

RESUMO

UNLABELLED: Inclusion body disease (IBD) is an infectious fatal disease of snakes typified by behavioral abnormalities, wasting, and secondary infections. At a histopathological level, the disease is identified by the presence of large eosinophilic cytoplasmic inclusions in multiple tissues. To date, no virus or other pathogen has been definitively characterized or associated with the disease. Using a metagenomic approach to search for candidate etiologic agents in snakes with confirmed IBD, we identified and de novo assembled the complete genomic sequences of two viruses related to arenaviruses, and a third arenavirus-like sequence was discovered by screening an additional set of samples. A continuous boa constrictor cell line was established and used to propagate and isolate one of the viruses in culture. Viral nucleoprotein was localized and concentrated within large cytoplasmic inclusions in infected cells in culture and tissues from diseased snakes. In total, viral RNA was detected in 6/8 confirmed IBD cases and 0/18 controls. These viruses have a typical arenavirus genome organization but are highly divergent, belonging to a lineage separate from that of the Old and New World arenaviruses. Furthermore, these viruses encode envelope glycoproteins that are more similar to those of filoviruses than to those of other arenaviruses. These findings implicate these viruses as candidate etiologic agents of IBD. The presence of arenaviruses outside mammals reveals that these viruses infect an unexpectedly broad range of species and represent a new reservoir of potential human pathogens. IMPORTANCE: Inclusion body disease (IBD) is a common infectious disease of captive snakes. IBD is fatal and can cause the loss of entire animal collections. The cause of the disease has remained elusive, and no treatment exists. In addition to being important to pet owners, veterinarians, breeders, zoological parks, and aquariums, the study of animal disease is significant since animals are the source of virtually every emerging infectious human disease. We searched for candidate causative agents in snakes diagnosed with IBD and found a group of novel viruses distantly related mainly to arenaviruses but also to filoviruses, both of which can cause fatal hemorrhagic fevers when transmitted from animals to humans. In addition to providing evidence that strongly suggests that these viruses cause snake IBD, this discovery reveals a new and unanticipated domain of virus biology and evolution.


Assuntos
Arenavirus/classificação , Arenavirus/isolamento & purificação , Boidae/virologia , Corpos de Inclusão Viral/virologia , Animais , Arenavirus/genética , Arenavirus/patogenicidade , Linhagem Celular , Citoplasma/química , Citoplasma/virologia , Genoma Viral , Metagenoma , Dados de Sequência Molecular , Nucleoproteínas/análise , RNA Viral/genética , Análise de Sequência de DNA , Cultura de Vírus
19.
Int J Public Health ; 54(3): 133-41, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19240981

RESUMO

OBJECTIVE: This paper responds to a gap in knowledge about the conceptualization of integration in community-based AIDS organizations (CBAOs). METHODS: A community-based process evaluation was conducted of a national intervention, developed by the Canadian AIDS Treatment Information Exchange (CATIE), to enhance treatment information provision in CBAOs and encourage its integration with prevention services. Our study involved 13 interviews with intervention participants in 6 CBAOs across Canada, CATIE staff, and funders, as well as a 25-person verification exercise. RESULTS: Intervention participants conceptualized integration as linking front-line HIV treatment, health promotion and prevention services, emphasizing mediation between scientific and lay knowledge, the political context of integration and the role of social determinants in clients' health and access to services. Challenges to integration include high staff turnover and inflexible funding structures. Complex health education related to the relationship between viral load and HIV transmission is a critical area of integrated service delivery. CONCLUSION: Study findings help distinguish a community-based concept of HIV-related integration from alternative uses of the term while pointing out key tensions associated with efforts to integrate HIV prevention and treatment in a community-based context.


Assuntos
Fármacos Anti-HIV/provisão & distribuição , Fármacos Anti-HIV/uso terapêutico , Serviços de Saúde Comunitária/organização & administração , Prestação Integrada de Cuidados de Saúde/organização & administração , Surtos de Doenças , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Promoção da Saúde/organização & administração , Pesquisa sobre Serviços de Saúde/organização & administração , Prevenção Primária/organização & administração , Avaliação de Processos em Cuidados de Saúde , Canadá , Assistência Integral à Saúde/organização & administração , Comportamento Cooperativo , Comparação Transcultural , Estudos Transversais , Surtos de Doenças/estatística & dados numéricos , Infecções por HIV/epidemiologia , Infecções por HIV/transmissão , Educação em Saúde/organização & administração , Humanos , Serviços de Informação/organização & administração , Capacitação em Serviço/organização & administração , Avaliação das Necessidades/organização & administração
20.
AIDS Care ; 21(1): 25-30, 2009 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-19085217

RESUMO

Propelled by increased global access to Highly Active Anti-Retroviral Therapies, the integration of HIV treatment and prevention has emerged as an important organizing concept of pandemic response. Despite its potential significance for community-based AIDS organizations (CBAOs) little research on integration has been done from a community-based perspective. This paper responds to that gap in the literature. With a view to moving what can be an abstract concept to the level of concrete practice, we offer a community-based model of the integration of HIV treatment and prevention. The model is based on research conducted in 2006-2007 with front-line staff from CBAOs across Canada carried out in partnership with the Canadian AIDS Treatment Information Exchange. The model is grounded in three central dimensions of a community-based perspective on integration deriving from our research: the phenomenological primacy of front-line service work, a comprehensive notion of treatment and prevention, and the importance of social context. The model is intended as a conceptual resource that can assist CBAOs in formulating practical responses to new demands for integrated service provision.


Assuntos
Terapia Antirretroviral de Alta Atividade , Serviços de Saúde Comunitária/organização & administração , Prestação Integrada de Cuidados de Saúde/organização & administração , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Modelos Teóricos , Canadá , Humanos , Serviços Preventivos de Saúde/organização & administração
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