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1.
One Health ; 16: 100482, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36655146

RESUMO

Household water contamination at point of use depends on human, animal and environmental factors embodying all aspects of a One Health approach. This study investigated the association between household factors, the presence of thermotolerant coliform, and the presence of antibiotic resistant bacteria in drinking water among 314 households with children under 5 in Cajamarca, Peru. This study analysed data from a baseline sampling of a randomized controlled trial, including household surveys covering household water management and factors such as household animals, as well as microbiological data from samples collected from drinking water. Data were analysed using generalized linear models. Drinking water samples collected from narrow-mouthed containers were less likely to be contaminated than samples collected from the faucet (OR = 0.55, p = 0.030) or wide mouthed containers. The presence of thermotolerant coliform was associated with owning farm birds, which increased the proportion of contamination from 42.2% to 59.1% (OR = 1.98, p = 0.017) and with animal waste observed in the kitchen area, which increased the prevalence of contamination from 51.4% to 65.6% (OR = 1.80, p = 0.024). Resistance to any antibiotic was higher among pig owners at 60%, relative to non-pig owners at 36.4% (OR = 1.97, p = 0.012) as well as households with free-roaming animals in the kitchen area at 59.6% compared to households without free-roaming animals at 39.7% (OR = 2.24, p = 0.035). Recent child antibiotic use increased the prevalence of trimethoprim-sulfamethoxazole resistance among E. coli isolates to 22.3% relative to 16.7% (OR = 3.00, p = 0.037). Overall, these findings suggest that water storage in a secure container to protect from in-home contamination is likely to be important in providing safe drinking water at point of use. In addition, transmission of thermotolerant coliform and AMR between domestic animals and human drinking water supplies is likely. Further research should explore transmission pathways and methods to support safe drinking water access in multi-species households.

2.
J Bone Joint Surg Am ; 103(22): 2080-2088, 2021 11 17.
Artigo em Inglês | MEDLINE | ID: mdl-34424866

RESUMO

BACKGROUND: Currently, the implants utilized in total ankle arthroplasty (TAA) are divided between mobile-bearing 3-component and fixed-bearing 2-component designs. The literature evaluating the influence of this mobility difference on implant survival is sparse. The purpose of the present study was therefore to compare the short-term survival of 2 implants of similar design from the same manufacturer, surgically implanted by the same surgeons, in fixed-bearing or mobile-bearing versions. METHODS: All patients were enrolled who underwent TAA with either the mobile-bearing Salto (Tornier and Integra) or the fixed-bearing Salto Talaris (Integra) in 3 centers by 2 surgeons between January 2004 and March 2018. All patients who underwent TAA from January 2004 to April 2013 received the Salto implant, and all patients who underwent TAA after November 2012 received the Salto Talaris implant. The primary outcome was time, within 3 years, to first all-cause reoperation, revision of any metal component, and revision of any component, including the polyethylene insert. Secondary outcomes included the frequency, cause, and type of reoperation. RESULTS: A total of 302 consecutive patients were included, of whom 171 received the mobile-bearing and 131 received the fixed-bearing implant. The adjusted hazard ratio for all-cause reoperation was 1.42 (95% confidence interval [CI], 0.67 to 3.00; p = 0.36); for component revision, 3.31 (95% CI, 0.93 to 11.79; p = 0.06); and for metal component revision, 2.78 (95% CI, 0.58 to 13.33; p = 0.20). A total of 31 reoperations were performed in the mobile-bearing group compared with 14 in the fixed-bearing group (p = 0.07). More extensive reoperation procedures were performed in the mobile-bearing group. CONCLUSIONS: With the largest comparison of 2 implants of similar design from the same manufacturer, the present study supports the use of a fixed-bearing design in terms of short-term failure. We found a 3-times higher rate of revision among mobile-bearing implants compared with fixed-bearing implants at 3 years after TAA. Reoperations, including first and subsequent procedures, tended to be less common and the causes and types of reoperations less extensive among fixed-bearing implants. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.


Assuntos
Artroplastia de Substituição do Tornozelo/efeitos adversos , Prótese Articular/efeitos adversos , Desenho de Prótese , Falha de Prótese , Reoperação/estatística & dados numéricos , Idoso , Articulação do Tornozelo/cirurgia , Artroplastia de Substituição do Tornozelo/instrumentação , Estudos de Coortes , Feminino , Seguimentos , Humanos , Prótese Articular/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento
3.
Physiol Behav ; 225: 113076, 2020 10 15.
Artigo em Inglês | MEDLINE | ID: mdl-32673619

RESUMO

Guinea pigs are often involved in animal-assisted therapy (AAT) but there is little knowledge about the effects of human contact on guinea pigs involved in AAT. The aim of this study was to investigate effects of availability of a retreat, presence of conspecifics, prior experience with AAT, and human interaction on indicators of welfare in guinea pigs involved in AAT. Guinea pigs of both sexes and different ages (n=20) were assigned to a randomized, controlled within-subject trial with repeated measurements. Each guinea pig was tested in four settings: (I) therapy with retreat possibility with conspecifics, (II) therapy with retreat possibility without conspecifics, (III) therapy without retreat possibility, and (IV) setting without human interaction. We measured changes in eye temperature, as a proxy to infer stress levels, at 5-s intervals with a thermographic camera. All sessions were video recorded and the guinea pigs' behavior was coded using continuous recording and focal animal sampling. For the statistical analysis we used generalized linear mixed models, with therapy setting as a fixed effect and individual guinea pig as a random effect. We observed a temperature increase relative to baseline in settings (I) therapy with retreat with conspecifics present and (III) therapy without retreat. The percentage of time a guinea pig was petted was positively correlated with a rise in the eye temperature independent of the setting. Time spent eating was reduced in all therapy settings (I-III) compared to the setting without HAI (human animal interaction) (IV). In the setting with retreat (I), guinea pigs showed more active behaviors such as locomotive behavior or startling compared to the setting without retreat (III) and the setting without HAI (IV). When no retreat was available (III), they showed more passive behaviors, such as standing still or freezing compared to therapy with retreat (I). Based on our results we identified the behaviors "reduced eating", "increased startle" and "increased freezing" as indicators of an increased stress level. Petting the guinea pigs was correlated with a rise in the eye temperature and might be a factor which can cause stress. Our results support the suggestion that guinea pigs involved in AAT should have a retreat possibility, should have access to conspecifics, and should be given time to adapt to a new setting. In this way, stress might be reduced.


Assuntos
Terapia Assistida com Animais , Animais , Comportamento Animal , Feminino , Cobaias , Humanos , Masculino , Termografia
4.
Acta Trop ; 165: 194-202, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26691990

RESUMO

We conducted a cross-sectional survey in Bamako, Mali, to determine for the first time the seroprevalence of rabies virus antibodies in the dog population and people's knowledge, attitudes and practices (KAP) towards the disease and its control. Antibody detection was done with the fluorescent antibody virus neutralisation (FAVN) test, with a positivity threshold of 0.25IU/ml. We visited 2956 households in 2010 and 2011 and found 379 dogs in 279 households. Data were collected on 279 dog-owning households, on 1017 non-dog-owning households and on 311 dogs. A serum or plasma sample was collected from 98 dogs. For 26 dogs we had sufficient data to describe the antibody decline over time after rabies vaccination using a quadratic regression. Ninety percent of interviewed persons (95% CI: 85%-91%) knew about rabies. The majority of interviewees knew that rabies is transmitted from dogs to humans, and some of the characteristic clinical signs seen in rabid dogs (change of behaviour, biting, salivation) could be listed by the majority. When asked how people behave regarding a rabid dog, killing the animal was the most frequent answer (>70%). Most (65% of the non-dog-owners and 81% of the dog-owners) were aware that vaccination of dogs can prevent rabies, but only a minority of dog-owners could answer correctly at what age the dog should get a first rabies vaccination (i.e. at 3 months). There was also strong consensus among dog-owners that it is better to protect their dog from becoming rabid by vaccinating it rather than needing to treat a bitten person. Forty-five percent (n=306; 95% CI 38%-52%) of dogs were reported as vaccinated against rabies at least once, but less than half of these (59/136) had a valid vaccination card. When asked for reasons for non-vaccination, cost was the most frequent reason at 31% (95% CI: 21%-43%), while general negligence was mentioned by 15% (95% CI: 10%-24%). Approximately one third of dog-owners would not pay for vaccination. To reach a threshold of 70% of vaccinated owned dogs, vaccination should not cost more than 0.2€ (100 FCFA). The seroprevalence of rabies virus antibodies in the examined dog population was low: 24% (n=98; 95% CI 15%-36%) with titres ≥0.25IU/ml and was 46% (n=39; 95% CI 29%-63%) when only including those reported as vaccinated by their owners. A seroprevalence of 59% (n=18; 95% CI 33%-80%) was reached if the analysis included only dogs with a valid vaccination certificate. Interestingly 4/22 dogs showed titres ≥0.25IU/ml despite being reported as unvaccinated. The Rabisin® vaccine showed generally higher IU titres than the Dog Vac Rabia® vaccine. All animals after booster vaccination had titres ≥0.25IU/ml which was not the case in primo-vaccinated animals. For the Rabisin® vaccine, a Kaplan Meier estimate suggested that to maintain an antibody titre of ≥0.25IU/ml for 75% of owned dogs, revaccination should be done after not more than 2.5 years. This work contributes vital information towards planning an effective dog rabies control programme for the district of Bamako.


Assuntos
Anticorpos Antivirais/sangue , Doenças do Cão/prevenção & controle , Imunização/estatística & dados numéricos , Propriedade/estatística & dados numéricos , Vacina Antirrábica , Raiva/prevenção & controle , Vacinação/estatística & dados numéricos , Animais , Estudos Transversais , Doenças do Cão/epidemiologia , Cães , Feminino , Humanos , Imunização/veterinária , Masculino , Mali/epidemiologia , Avaliação de Programas e Projetos de Saúde , Raiva/epidemiologia , Estudos Soroepidemiológicos , Vacinação/veterinária
5.
Rev Sci Tech ; 35(2): 659-671, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27917962

RESUMO

Valid human and livestock health surveys, including longitudinal follow-up, are feasible among mobile pastoralists and provide fundamental information to agencies for interventions that are responsive to realities and effective in addressing the needs of pastoralists. However, pastoralists are often excluded from studies, surveillance systems and health programmes. The occurrence of preventable and treatable diseases such as perinatal tetanus, measles and tuberculosis are indicative of limited access to health providers and information. It is difficult for health services to include effective outreach with their available financial and human resources. One consequence is that maternal mortality rates among pastoralists are unacceptably high. Environmental determinants such as the quality of water and the pasture ecosystems further influence the morbidity of pastoralists. In the Sahel, the nutritional status of pastoralist children is seasonally better than that of settled children; but pastoralist women tend to have higher acute malnutrition rates. Pastoralist women are more vulnerable than men to exclusion from health services for different context-specific reasons. Evidence-based control measures can be assessed in cluster surveys with simultaneous assessments of health among people and livestock, where data on costs of disease and interventions are also collected. These provide important arguments for governmental and non-governmental agencies for intervention development. New, integrated One Health surveillance systems making use of mobile technology and taking into account local concepts and the experiences and priorities of pastoralist communities, combined with sound field data, are essential to develop and provide adapted human and animal health services that are inclusive for mobile pastoralist communities and allow them to maintain their mobile way of life.


Il est possible de réaliser auprès des populations de pasteurs nomades des enquêtes sérieuses sur la santé des personnes et des troupeaux assorties d'études de suivi longitudinales, et de fournir ainsi aux organisations pertinentes des informations fondamentales pour la conception d'interventions adaptées à la situation réelle des pasteurs et répondant à leurs besoins. Or, les populations pastorales sont fréquemment exclues des études, des systèmes de surveillance et des programmes sanitaires. L'incidence de maladies évitables et traitables, par exemple le tétanos néonatal, la rougeole et la tuberculose dénote un accès limité à l'information et aux prestations de santé. Avec les ressources financières et humaines dont ils disposent, les services de santé ne parviennent pas à assurer une couverture efficace de ces populations. L'une des conséquences de cet état de fait est le taux de mortalité maternelle intolérablement élevé enregistré dans les communautés pastorales. Certains déterminants environnementaux comme la qualité de l'eau et les écosystèmes des prairies affectent également l'état de santé des pasteurs. Au Sahel, les enfants des communautés pastorales ont un meilleur statut nutritionnel saisonnier que les enfants sédentaires ; en revanche, chez les femmes de ces communautés la malnutrition aiguë est plus fréquente. En outre, les femmes sont plus en risque que les hommes d'être exclues des services de santé, pour différentes raisons déterminées par le contexte. Des évaluations factuelles des mesures de prophylaxie peuvent être réalisées au moyen d'enquêtes agrégatives comprenant l'évaluation simultanée de l'état sanitaire des personnes et des troupeaux, ce qui permet également de réunir des informations sur les coûts des maladies et des interventions sanitaires. Ces informations sont importantes pour étayer l'argumentaire des organisations tant gouvernementales que non gouvernementales en faveur d'un renforcement des interventions. Il est essentiel de faire appel aux nouveaux systèmes de surveillance intégrés « Une seule santé ¼, en utilisant les technologies mobiles, en prenant en compte les concepts locaux ainsi que l'expérience et les priorités des communautés pastorales et en les complétant par des informations solides recueillies sur le terrain, afin de concevoir et d'assurer des prestations de santé humaine et animale adaptées et inclusives, destinées aux communautés pastorales nomades et leur permettant de conserver leur mode de vie nomade.


La realización de estudios válidos de salud humana y animal, con seguimiento longitudinal de cohortes, no solo es un procedimiento factible entre los pastores nómadas, sino que además proporciona información básica a los organismos encargados de realizar intervenciones que se ajusten a la realidad sobre el terreno y respondan eficazmente a las necesidades de las sociedades pastorales. Estas, sin embargo, quedan con frecuencia excluidas de estudios, sistemas de vigilancia y programas sanitarios. La aparición de enfermedades que se pueden prevenir y tratar, como el tétanos perinatal, el sarampión o la tuberculosis, es indicativa de un acceso deficiente a los proveedores de asistencia sanitaria y a la información sobre cuestiones de salud. Con los recursos humanos y económicos de que disponen, a los servicios de salud les resulta difícil instaurar mecanismos para llegar eficazmente a esas poblaciones, lo que, entre otras consecuencias, se traduce en tasas de mortalidad materna inaceptablemente altas en las sociedades pastorales. En la morbilidad de esas poblaciones también influyen determinantes ambientales como la calidad del agua o los ecosistemas de pradera. En el Sahel, el estado de nutrición de los niños de las comunidades de pastores es mejor, según las estaciones, que el de los niños sedentarizados. Las mujeres de las sociedades pastorales, sin embargo, tienden a presentar índices más elevados de malnutrición aguda, y por diferentes razones ligadas al contexto, están más expuestas que los hombres a verse privadas de servicios de salud. Las medidas de control basadas en datos empíricos pueden ser evaluadas mediante estudios por conglomerados con valoración simultánea del estado de salud de las personas y el ganado, en los que también se obtienen datos sobre el costo de las enfermedades y las intervenciones sanitarias, datos que ofrecen a los organismos oficiales o no gubernamentales poderosos argumentos a la hora de definir intervenciones. Para concebir y dispensar servicios adaptados de salud humana y animal, que sin dejar de lado a las comunidades de pastores nómadas a la vez les permitan mantener su modo de vida itinerante, es esencial poner en solfa nuevos sistemas integrados de vigilancia, que se ajusten a los principios de «Una sola salud¼, aprovechen las tecnologías móviles y tengan en cuenta los conceptos y experiencias locales y las prioridades de las comunidades de pastores, combinándolos con la obtención de datos sólidos sobre el terreno.


Assuntos
Doenças dos Animais/terapia , Criação de Animais Domésticos/métodos , Acessibilidade aos Serviços de Saúde , Inquéritos Epidemiológicos , Saúde da Mulher , Doenças dos Animais/epidemiologia , Doenças dos Animais/prevenção & controle , Criação de Animais Domésticos/estatística & dados numéricos , Animais , Infecções Bacterianas/epidemiologia , Infecções Bacterianas/prevenção & controle , Infecções Bacterianas/transmissão , Inquéritos Epidemiológicos/métodos , Inquéritos Epidemiológicos/normas , Humanos , Gado , Doenças Parasitárias/epidemiologia , Doenças Parasitárias/prevenção & controle , Doenças Parasitárias/transmissão , Tuberculose/epidemiologia , Tuberculose/prevenção & controle , Tuberculose/transmissão , Zoonoses/epidemiologia , Zoonoses/prevenção & controle , Zoonoses/transmissão
6.
Int J Epidemiol ; 45(6): 2089-2099, 2016 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-27818376

RESUMO

Background: Diarrhoea and acute lower respiratory infections are leading causes of childhood morbidity and mortality, which can be prevented by simple low-cost interventions. Integrated strategies can provide additional benefits by addressing multiple health burdens simultaneously. Methods: We conducted a community-randomized-controlled trial in 51 rural communities in Peru to evaluate whether an environmental home-based intervention package, consisting of improved solid-fuel stoves, kitchen sinks, solar disinfection of drinking water and hygiene promotion, reduces lower respiratory infections, diarrhoeal disease and improves growth in children younger than 36 months. The attention control group received an early child stimulation programme. Results: We recorded 24 647 child-days of observation from 250 households in the intervention and 253 in the attention control group during 12-month follow-up. Mean diarrhoea incidence was 2.8 episodes per child-year in the intervention compared with 3.1 episodes in the control arm. This corresponds to a relative rate of 0.78 [95% confidence interval (CI): 0.58-1.05] for diarrhoea incidence and an odds ratio of 0.71 (95% CI: 0.47-1.06) for diarrhoea prevalence. No effects on acute lower respiratory infections or children's growth rates were observed. Conclusions: Combined home-based environmental interventions slightly reduced childhood diarrhoea, but the confidence interval included unity. Effects on growth and respiratory outcomes were not observed, despite high user compliance of the interventions. The absent effect on respiratory health might be due to insufficient household air quality improvements of the improved stoves and additional time needed to achieve attitudinal and behaviour change when providing composite interventions.


Assuntos
Diarreia/prevenção & controle , Desinfecção/métodos , Água Potável/normas , Higiene , Infecções Respiratórias/prevenção & controle , Antropometria , Saúde da Criança , Pré-Escolar , Culinária , Diarreia/epidemiologia , Água Potável/microbiologia , Características da Família , Feminino , Humanos , Incidência , Lactente , Masculino , Peru/epidemiologia , Infecções Respiratórias/epidemiologia , População Rural , Purificação da Água/métodos
7.
Parasitology ; 141(7): 892-7, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24534076

RESUMO

The variability of larval excretion impedes the parasitological diagnosis of Strongyloides stercoralis in infected individuals. We assessed the number of larvae excreted per gram (LPG) stool in 219 samples from 38 infected individuals over 7 consecutive days before and in 470 samples from 44 persons for 21 consecutive days after ivermectin treatment (200 µg kg-1 BW). The diagnostic sensitivity of a single stool sample was about 75% for individuals with low-intensity infections (⩽1 LPG) and increased to 95% for those with high-intensity infections (⩾10 LPG). Doubling the number of samples examined per person increased sensitivity to more than 95%, even for low-intensity infections. There was no indication of a cyclic excretion of larvae. After treatment, all individuals stopped excreting larvae within 3 days. Larvae were not detected during any of the following 18 days (total 388 Baermann and 388 Koga Agar tests). Two stool samples, collected on consecutive days, are recommended in settings where low or heterogeneous infection intensities are likely. In this way, taking into account the possible biological variability in excretion, the efficacy of ivermectin treatment can be assessed as soon as 4 days after treatment.


Assuntos
Antiparasitários/uso terapêutico , Fezes/parasitologia , Ivermectina/uso terapêutico , Strongyloides stercoralis , Estrongiloidíase/tratamento farmacológico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Animais , Criança , Pré-Escolar , Feminino , Humanos , Larva , Masculino , Pessoa de Meia-Idade , Estrongiloidíase/parasitologia , Adulto Jovem
8.
Indoor Air ; 23(4): 342-52, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23311877

RESUMO

Nearly half of the world's population depends on biomass fuels to meet domestic energy needs, producing high levels of pollutants responsible for substantial morbidity and mortality. We compare carbon monoxide (CO) and particulate matter (PM2.5) exposures and kitchen concentrations in households with study-promoted intervention (OPTIMA-improved stoves and control stoves) in San Marcos Province, Cajamarca Region, Peru. We determined 48-h indoor air concentration levels of CO and PM2.5 in 93 kitchen environments and personal exposure, after OPTIMA-improved stoves had been installed for an average of 7 months. PM2.5 and CO measurements did not differ significantly between OPTIMA-improved stoves and control stoves. Although not statistically significant, a post hoc stratification of OPTIMA-improved stoves by level of performance revealed mean PM2.5 and CO levels of fully functional OPTIMA-improved stoves were 28% lower (n = 20, PM2.5, 136 µg/m(3) 95% CI 54-217) and 45% lower (n = 25, CO, 3.2 ppm, 95% CI 1.5-4.9) in the kitchen environment compared with the control stoves (n = 34, PM2.5, 189 µg/m(3), 95% CI 116-261; n = 44, CO, 5.8 ppm, 95% CI 3.3-8.2). Likewise, although not statistically significant, personal exposures for OPTIMA-improved stoves were 43% and 17% lower for PM2.5 (n = 23) and CO (n = 25), respectively. Stove maintenance and functionality level are factors worthy of consideration for future evaluations of stove interventions.


Assuntos
Poluição do Ar em Ambientes Fechados/prevenção & controle , Culinária/instrumentação , Calefação/instrumentação , Fumaça/análise , Poluição do Ar em Ambientes Fechados/análise , Poluição do Ar em Ambientes Fechados/estatística & dados numéricos , Exposição Ambiental , Eucalyptus , Feminino , Humanos , Peru , População Rural , Madeira
9.
Contemp Clin Trials ; 32(6): 864-73, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21762789

RESUMO

INTRODUCTION: Pneumonia and diarrhoea are leading causes of death in children. There is a need to develop effective interventions. OBJECTIVE: We present the design and baseline findings of a community-randomised controlled trial in rural Peru to evaluate the health impact of an Integrated Home-based Intervention Package in children aged 6 to 35 months. METHODS: We randomised 51 communities. The intervention was developed through a community-participatory approach prior to the trial. They comprised the construction of improved stoves and kitchen sinks, the promotion of hand washing, and solar drinking water disinfection (SODIS). To reduce the potential impact of non-blinding bias, a psychomotor stimulation intervention was implemented in the control arm. The baseline survey included anthropometric and socio-economic characteristics. In a sub-sample we determined the level of faecal contamination of drinking water, hands and kitchen utensils and the prevalence of diarrhoegenic Escherichia coli in stool specimen. RESULTS: We enrolled 534 children. At baseline all households used open fires and 77% had access to piped water supplies. E. coli was found in drinking water in 68% and 64% of the intervention and control households. Diarrhoegenic E. coli strains were isolated from 45/139 stool samples. The proportion of stunted children was 54%. CONCLUSIONS: Randomization resulted in comparable study arms. Recently, several critical reviews raised major concerns on the reliability of open health intervention trials, because of uncertain sustainability and non-blinding bias. In this regard, the presented trial featuring objective outcome measures, a simultaneous intervention in the control communities and a 12-month follow up period will provide valuable evidence.


Assuntos
Desinfecção/métodos , Exposição Ambiental/efeitos adversos , Doença Ambiental/prevenção & controle , Utensílios Domésticos , População Rural , Abastecimento de Água/normas , Criança , Pré-Escolar , Doença Ambiental/epidemiologia , Feminino , Seguimentos , Humanos , Incidência , Lactente , Masculino , Peru/epidemiologia , Estudos Retrospectivos , Luz Solar
10.
Med Trop (Mars) ; 71(6): 596-604, 2011 Dec.
Artigo em Francês | MEDLINE | ID: mdl-22393628

RESUMO

Control of human rabies in developing countries depends on prevention in dogs. The purpose of this study was to evaluate the cost-saving potential for the public health sector of intervention to control rabies in animal-host reservoirs. An existing deterministic model was adapted to allow study of dog-to-human rabies transmission. Model parameters were fitted to data from routine weekly reports on the number of rabid dogs and human rabies exposures in N'Djamena, Chad. At the onset of study, the estimated effective reproductive ratio (Re) was 1.01 indicating stable low-level endemic rabies transmission. Simulations were performed to determine what effects mass vaccination and culling of dogs would have on the incidence of human rabies. Findings showed that a mass campaign allowing single parenteral vaccination of at least 70% of the canine population would be sufficient to interrupt transmission of rabies to humans for at least 6 years. The cost-effectiveness of mass dog vaccination was compared to that of "postexposure prophylaxis" (PEP) which would not reduce future human exposure. Results showed that a sustained 5-year PEP program together with a dog-vaccination campaign would be as cost-effective as PEP alone. Beyond a time-frame of 7 years, combining parenteral dog vaccination campaigns with human PEP appeared to be more cost-effective than human PEP alone.


Assuntos
Controle de Doenças Transmissíveis/economia , Doenças do Cão/economia , Doenças do Cão/transmissão , Raiva/economia , Raiva/transmissão , África/epidemiologia , Animais , Chade/epidemiologia , Cidades/epidemiologia , Controle de Doenças Transmissíveis/métodos , Análise Custo-Benefício , Doenças do Cão/mortalidade , Doenças do Cão/prevenção & controle , Cães , Custos de Cuidados de Saúde , Humanos , Vacinação em Massa/economia , Vacinação em Massa/veterinária , Modelos Biológicos , Profilaxia Pós-Exposição/economia , Profilaxia Pós-Exposição/métodos , Raiva/mortalidade , Raiva/prevenção & controle , População Urbana/estatística & dados numéricos , Zoonoses/epidemiologia , Zoonoses/transmissão
11.
Vet Rec ; 167(7): 250-6, 2010 Aug 14.
Artigo em Inglês | MEDLINE | ID: mdl-20710033

RESUMO

Representative repeated cross-sectional skin testing for bovine tuberculosis (TB) was conducted over a period of three years in a total of 5377 cattle in three randomly selected woredas (districts) in Ethiopia (Meskan, Woldia and Bako-Gazer) that had never previously been tested for TB. Almost all (99 per cent) of the animals included local zebus kept in traditional husbandry systems. The comparative intradermal tuberculin test with two diagnostic thresholds were used to define positive test results, one according to the World Organisation for Animal Health (OIE) recommended cut-off of more than 4 mm, and the other with a cut-off of >2 mm. Data analysis was performed using a logistic regression model with a random effect at the village level. Applying the OIE definition, the overall representative apparent prevalence of bovine TB in skin test-positive local zebus was 0.9 per cent (95 per cent confidence interval [CI] 0.6 to 1.3 per cent). Using a cut-off of more than 2 mm the overall representative prevalence increased to 4 per cent (95 per cent CI 2.4 to 4.8 per cent). Due to the low apparent prevalence, the true prevalence could be calculated only in Meskan (4.5 per cent) and Bako-Gazer (2.4 per cent) for the more than 2 mm cut-off. With the exception of Meskan, prevalence by woreda did not change significantly over the years. Mycobacterium avium reactor animals were found at all study sites, but there were significant geographical variations. Overall, bulls and oxen were more at risk of being positive reactors (odds ratio [OR] 1.6, 95 per cent CI 1.1 to 2.3; OR 2, 95 per cent CI 1.4 to 2.6, respectively), as were animals in good body condition (OR 2, 95 per cent CI 1.5 to 2.9). Similar results were found at woreda level with the exception of Woldia, where none of the analysed variables was significantly associated with a positive test result.


Assuntos
Mycobacterium avium/isolamento & purificação , Teste Tuberculínico/veterinária , Tuberculose Bovina/diagnóstico , Criação de Animais Domésticos/métodos , Animais , Bovinos , Estudos Transversais , Etiópia/epidemiologia , Feminino , Modelos Logísticos , Masculino , Prevalência , Fatores de Risco , Tuberculose Bovina/epidemiologia
12.
Proc Natl Acad Sci U S A ; 106(35): 14996-5001, 2009 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-19706492

RESUMO

Human rabies in developing countries can be prevented through interventions directed at dogs. Potential cost-savings for the public health sector of interventions aimed at animal-host reservoirs should be assessed. Available deterministic models of rabies transmission between dogs were extended to include dog-to-human rabies transmission. Model parameters were fitted to routine weekly rabid-dog and exposed-human cases reported in N'Djaména, the capital of Chad. The estimated transmission rates between dogs (beta(d)) were 0.0807 km2/(dogs x week) and between dogs and humans (beta(dh)) 0.0002 km2/(dogs x week). The effective reproductive ratio (R(e)) at the onset of our observations was estimated at 1.01, indicating low-level endemic stability of rabies transmission. Human rabies incidence depended critically on dog-related transmission parameters. We simulated the effects of mass dog vaccination and the culling of a percentage of the dog population on human rabies incidence. A single parenteral dog rabies-mass vaccination campaign achieving a coverage of least 70% appears to be sufficient to interrupt transmission of rabies to humans for at least 6 years. The cost-effectiveness of mass dog vaccination was compared to postexposure prophylaxis (PEP), which is the current practice in Chad. PEP does not reduce future human exposure. Its cost-effectiveness is estimated at US $46 per disability adjusted life-years averted. Cost-effectiveness for PEP, together with a dog-vaccination campaign, breaks even with cost-effectiveness of PEP alone after almost 5 years. Beyond a time-frame of 7 years, it appears to be more cost-effective to combine parenteral dog-vaccination campaigns with human PEP compared to human PEP alone.


Assuntos
Doenças do Cão/prevenção & controle , Programas de Imunização/economia , Raiva/prevenção & controle , Raiva/veterinária , Animais , Chade , Análise Custo-Benefício , Doenças do Cão/economia , Doenças do Cão/imunologia , Doenças do Cão/transmissão , Cães , Feminino , Custos de Cuidados de Saúde , Humanos , Masculino , Raiva/economia , Raiva/transmissão , Vacina Antirrábica/imunologia , Saúde da População Urbana
13.
Perspect Psychiatr Care ; 33(1): 14-23, 1997.
Artigo em Inglês | MEDLINE | ID: mdl-9121870

RESUMO

TOPIC: Psychotherapy with abused women. PURPOSE: To contrast the usefulness of several models of psychotherapy with abused women. SOURCE: Review of the literature and clinical experience of the authors. CONCLUSIONS: Because marital counseling often focuses on the violence as a product of the couple system rather than oppression of the woman, the authors recommend individual counseling to address developmentally determined feelings of helplessness. The goal of this psychotherapy is empowerment.


Assuntos
Mulheres Maltratadas/psicologia , Terapia Conjugal/métodos , Enfermagem Psiquiátrica/métodos , Psicoterapia/métodos , Maus-Tratos Conjugais/prevenção & controle , Maus-Tratos Conjugais/psicologia , Aconselhamento , Feminino , Identidade de Gênero , Desamparo Aprendido , Humanos , Modelos de Enfermagem , Direitos da Mulher
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