Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 36
Filtrar
1.
BMC Public Health ; 21(1): 2084, 2021 11 13.
Artículo en Inglés | MEDLINE | ID: mdl-34774012

RESUMEN

BACKGROUND: Strategies to control coronavirus 2019 disease (COVID-19) have often been based on preliminary and limited data and have tended to be slow to evolve as new evidence emerges. Yet knowledge about COVID-19 has grown exponentially, and the expanding rollout of vaccines presents further opportunity to reassess the response to the pandemic more broadly. MAIN TEXT: We review the latest evidence concerning 10 key COVID-19 policy and strategic areas, specifically addressing: 1) the expansion of equitable vaccine distribution, 2) the need to ease restrictions as hospitalization and mortality rates eventually fall, 3) the advantages of emphasizing educational and harm reduction approaches over coercive and punitive measures, 4) the need to encourage outdoor activities, 5) the imperative to reopen schools, 6) the far-reaching and long-term economic and psychosocial consequences of sustained lockdowns, 7) the excessive focus on surface disinfection and other ineffective measures, 8) the importance of reassessing testing policies and practices, 9) the need for increasing access to outpatient therapies and prophylactics, and 10) the necessity to better prepare for future pandemics. CONCLUSIONS: While remarkably effective vaccines have engendered great hope, some widely held assumptions underlying current policy approaches call for an evidence-based reassessment. COVID-19 will require ongoing mitigation for the foreseeable future as it transforms from a pandemic into an endemic infection, but maintaining a constant state of emergency is not viable. A more realistic public health approach is to adjust current mitigation goals to be more data-driven and to minimize unintended harms associated with unfocused or ineffective control efforts. Based on the latest evidence, we therefore present recommendations for refining 10 key policy areas, and for applying lessons learned from COVID-19 to prevent and prepare for future pandemics.


Asunto(s)
COVID-19 , Control de Enfermedades Transmisibles , Humanos , Pandemias , Políticas , SARS-CoV-2
3.
Artículo en Inglés | MEDLINE | ID: mdl-38721491

RESUMEN

The use of face masks has been widely promoted and at times mandated to prevent coronavirus disease 2019 (COVID-19). The 2023 publication of an updated Cochrane review on mask effectiveness for respiratory viruses as well as the unfolding epidemiology of COVID-19 underscore the need for an unbiased assessment of the current scientific evidence. It appears that the widespread promotion, adoption, and mandating of masking for COVID-19 were based not primarily on the strength of evidence for effectiveness but more on the imperative of decision-makers to act in the face of a novel public health emergency, with seemingly few good alternatives. Randomized clinical trials of masking for prevention of COVID-19 and other respiratory viruses have so far shown no evidence of benefit (with the possible exception of continuous use of N95 respirators by hospital workers). Observational studies provide lower-quality evidence and do not convincingly demonstrate benefit from masking or mask mandates. Unless robust new evidence emerges showing the effectiveness of masks in reducing infection or transmission risks in either trials or real-world conditions, mandates are not warranted for future epidemics of respiratory viral infections.

4.
AIDS Care ; 24(12): 1565-75, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22452415

RESUMEN

A potential impediment to evidence-based policy development on medical male circumcision (MC) for HIV prevention in all countries worldwide is the uncritical acceptance by some of arguments used by opponents of this procedure. Here we evaluate recent opinion-pieces of 13 individuals opposed to MC. We find that these statements misrepresent good studies, selectively cite references, some containing fallacious information, and draw erroneous conclusions. In marked contrast, the scientific evidence shows MC to be a simple, low-risk procedure with very little or no adverse long-term effect on sexual function, sensitivity, sensation during arousal or overall satisfaction. Unscientific arguments have been recently used to drive ballot measures aimed at banning MC of minors in the USA, eliminate insurance coverage for medical MC for low-income families, and threaten large fines and incarceration for health care providers. Medical MC is a preventative health measure akin to immunisation, given its protective effect against HIV infection, genital cancers and various other conditions. Protection afforded by neonatal MC against a diversity of common medical conditions starts in infancy with urinary tract infections and extends throughout life. Besides protection in adulthood against acquiring HIV, MC also reduces morbidity and mortality from multiple other sexually transmitted infections (STIs) and genital cancers in men and their female sexual partners. It is estimated that over their lifetime one-third of uncircumcised males will suffer at least one foreskin-related medical condition. The scientific evidence indicates that medical MC is safe and effective. Its favourable risk/benefit ratio and cost/benefit support the advantages of medical MC.


Asunto(s)
Circuncisión Masculina , Disentimientos y Disputas , Infecciones por VIH/prevención & control , Enfermedades de Transmisión Sexual/prevención & control , Adulto , Países Desarrollados , Infecciones por VIH/etiología , Conocimientos, Actitudes y Práctica en Salud , Personal de Salud , Política de Salud , Humanos , Masculino , Salud Pública
5.
BMC Pediatr ; 12: 20, 2012 Feb 28.
Artículo en Inglés | MEDLINE | ID: mdl-22373281

RESUMEN

BACKGROUND: Circumcision is a common procedure, but regional and societal attitudes differ on whether there is a need for a male to be circumcised and, if so, at what age. This is an important issue for many parents, but also pediatricians, other doctors, policy makers, public health authorities, medical bodies, and males themselves. DISCUSSION: We show here that infancy is an optimal time for clinical circumcision because an infant's low mobility facilitates the use of local anesthesia, sutures are not required, healing is quick, cosmetic outcome is usually excellent, costs are minimal, and complications are uncommon. The benefits of infant circumcision include prevention of urinary tract infections (a cause of renal scarring), reduction in risk of inflammatory foreskin conditions such as balanoposthitis, foreskin injuries, phimosis and paraphimosis. When the boy later becomes sexually active he has substantial protection against risk of HIV and other viral sexually transmitted infections such as genital herpes and oncogenic human papillomavirus, as well as penile cancer. The risk of cervical cancer in his female partner(s) is also reduced. Circumcision in adolescence or adulthood may evoke a fear of pain, penile damage or reduced sexual pleasure, even though unfounded. Time off work or school will be needed, cost is much greater, as are risks of complications, healing is slower, and stitches or tissue glue must be used. SUMMARY: Infant circumcision is safe, simple, convenient and cost-effective. The available evidence strongly supports infancy as the optimal time for circumcision.


Asunto(s)
Circuncisión Masculina/efectos adversos , Enfermedades del Pene/prevención & control , Enfermedades de Transmisión Sexual/prevención & control , Infecciones Urinarias/prevención & control , Adolescente , Adulto , Factores de Edad , Circuncisión Masculina/economía , Cultura , Humanos , Lactante , Masculino , Enfermedades del Pene/complicaciones , Medición de Riesgo , Enfermedades de Transmisión Sexual/complicaciones , Infecciones Urinarias/complicaciones
7.
AIDS Behav ; 14(1): 11-6; dicussion 34-7, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-18648926

RESUMEN

The role of concurrent sexual partnerships is increasingly recognized as important for the transmission of sexually transmitted infections, particularly of heterosexual HIV transmission in Africa. Modeling and empirical evidence suggest that concurrent partnerships-compared to serial partnerships-can increase the size of an HIV epidemic, the speed at which it infects a population, and its persistence within a population. This selective review of the published and unpublished literature on concurrent partnerships examines various definitions and strategies for measuring concurrency, the prevalence of concurrency from both empirical and modeling studies, the biological plausibility of concurrency, and the social and cultural underpinnings of concurrency in southern Africa.


Asunto(s)
Infecciones por VIH/epidemiología , Infecciones por VIH/transmisión , Parejas Sexuales , Adolescente , Adulto , África del Sur del Sahara/epidemiología , Distribución por Edad , Brotes de Enfermedades , Femenino , Humanos , Masculino , Vigilancia de la Población , Prevalencia , Distribución por Sexo , Conducta Sexual , Adulto Joven
8.
J Nutr Educ Behav ; 51(2): 205-216, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30291016

RESUMEN

OBJECTIVE: Assess impact of multimodality weight gain prevention intervention. METHODS: Randomized clinical trial among 39 overweight young Puerto Rico college students using 10 weekly peer-support sessions promoting dietary, physical activity, and other lifestyle changes enhanced by stress-reduction and mindfulness approaches. Body mass index (BMI) and self-reported behaviors were measured at baseline and at 10 weeks and 6 months after baseline. RESULTS: At the completion of the intervention, BMIs in the experimental arm were 0.8 units lower than at baseline (z = -3.0; P = .008) and 1.2 lower at 6 months after baseline (z = -4.1; P < .001); BMIs in the control arm were 0.7 higher (z = 2.7; P = .02) at 10 weeks and 0.8 higher at 6 months (z = 3.1; P = .005). Group × time interaction confirmed that BMI differed significantly over time between arms (χ2 = 26.9; degrees of freedom = 2; P < .001). Analysis of behavioral changes was mostly inconclusive although the experimental arm reported a considerable increase in walking at 10 weeks. Qualitative data suggested that yoga and mindfulness components were particularly useful for motivating participants to maintain healthier lifestyle patterns. CONCLUSIONS: Body mass index in the experimental arm decreased at the end of intervention and was maintained at 6 months' follow-up.


Asunto(s)
Conductas Relacionadas con la Salud , Conocimientos, Actitudes y Práctica en Salud , Hispánicos o Latinos/psicología , Sobrepeso/prevención & control , Pérdida de Peso , Adolescente , Índice de Masa Corporal , Femenino , Florida , Promoción de la Salud/métodos , Humanos , Masculino , Atención Plena , Grupo Paritario , Proyectos Piloto , Puerto Rico/etnología , Apoyo Social , Estudiantes , Universidades , Aumento de Peso/fisiología , Adulto Joven
11.
BMC Infect Dis ; 6: 172, 2006 Nov 30.
Artículo en Inglés | MEDLINE | ID: mdl-17137513

RESUMEN

BACKGROUND: Both religious practices and male circumcision (MC) have been associated with HIV and other sexually-transmitted infectious diseases. Most studies have been limited in size and have not adequately controlled for religion, so these relationships remain unclear. METHODS: We evaluated relationships between MC prevalence, Muslim and Christian religion, and 7 infectious diseases using country-specific data among 118 developing countries. We used multivariate linear regression to describe associations between MC and cervical cancer incidence, and between MC and HIV prevalence among countries with primarily sexual HIV transmission. RESULTS: Fifty-three, 14, and 51 developing countries had a high (>80%), intermediate (20-80%), and low (<20%) MC prevalence, respectively. In univariate analyses, MC was associated with lower HIV prevalence and lower cervical cancer incidence, but not with HSV-2, syphilis, nor, as expected, with Hepatitis C, tuberculosis, or malaria. In multivariate analysis after stratifying the countries by religious groups, each categorical increase of MC prevalence was associated with a 3.65/100,000 women (95% CI 0.54-6.76, p = 0.02) decrease in annual cervical cancer incidence, and a 1.84-fold (95% CI 1.36-2.48, p < 0.001) decrease in the adult HIV prevalence among sub-Saharan African countries. In separate multivariate analyses among non-sub-Saharan African countries controlling for religion, higher MC prevalence was associated with a 8.94-fold (95% CI 4.30-18.60) decrease in the adult HIV prevalence among countries with primarily heterosexual HIV transmission, but not, as expected, among countries with primarily homosexual or injection drug use HIV transmission (p = 0.35). CONCLUSION: Male circumcision was significantly associated with lower cervical cancer incidence and lower HIV prevalence in sub-Saharan Africa, independent of Muslim and Christian religion. As predicted, male circumcision was also strongly associated with lower HIV prevalence among countries with primarily heterosexual HIV transmission, but not among countries with primarily homosexual or injection drug use HIV transmission. These findings strengthen the reported biological link between MC and some sexually transmitted infectious diseases, including HIV and cervical cancer.


Asunto(s)
Cristianismo , Circuncisión Masculina/estadística & datos numéricos , Países en Desarrollo/estadística & datos numéricos , Infecciones por VIH/epidemiología , Islamismo , Conducta Sexual/estadística & datos numéricos , Neoplasias del Cuello Uterino/epidemiología , África del Sur del Sahara/epidemiología , África del Norte/epidemiología , Control de Enfermedades Transmisibles , Estudios Transversales , Femenino , Infecciones por VIH/prevención & control , Humanos , Incidencia , Modelos Lineales , Masculino , Análisis Multivariante , Religión y Medicina , Religión y Sexo , Enfermedades de Transmisión Sexual/epidemiología , Enfermedades de Transmisión Sexual/prevención & control
12.
Aust N Z J Public Health ; 30(1): 16-22; discussion 22-5, 2006 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-16502947

RESUMEN

OBJECTIVE: To conduct a critical peer-review of the 2004 Policy Statement on routine male circumcision produced by the Royal Australasian College of Physicians (RACP). METHOD: Comprehensive evaluation in the context of the research field. RESULTS: We find that the current Statement downplays the wide-ranging life-long benefits of circumcision in prevention of urinary tract infections (UTIs), penile and cervical cancer, genital herpes and chlamydia in women, HIV infection, phimosis, and various penile dermatoses, and at the same time overstates the complication rate. We highlight the many errors in the RACP Statement and note that it sidesteps making a conclusion based on circumcision's well-documented prophylactic health benefits by instead referring to the status of the foreskin at birth. In the era of preventative medicine we view this as irresponsible. CONCLUSION: The RACP's Statement on routine male circumcision is not evidence-based and should be retracted. IMPLICATIONS: In the interests of public health and individual well-being an extensive, comprehensive, evidence-based revision should be conducted so as to provide scientifically accurate, balanced information on the advantages, and also the low rate of mostly minor complications, associated with this simple procedure, which for maximum benefits and minimal risk should ideally be performed in the neonatal period.


Asunto(s)
Circuncisión Masculina/legislación & jurisprudencia , Política Organizacional , Sociedades Médicas , Australia , Humanos , Recién Nacido , Masculino , Revisión por Pares
18.
Sex Health ; 10(4): 369-76, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23809883

RESUMEN

UNLABELLED: Background This study aims to complement recent research on sexual concurrency in South Africa by providing a deeper understanding of women's roles and motivations for engaging in and accepting their partners' concurrency. Our goal is to inform the implementation of more effective interventions that embrace the powerful role that women can play in healthy sexual decision-making in consensual relationships. METHODS: We conducted 12 focus groups with male and female students at the University of KwaZulu-Natal. Drawing on a subset of those focus groups, we examined the gender norms underpinning the apparently widespread acceptance of concurrent sexual partnerships. Our analysis focusses on women's attitudes and behaviours towards concurrency - from both men's and women's perspectives - with a goal of identifying opportunities to engage women as agents of change in sexual partnership patterns in their communities. RESULTS: Our findings indicate that: (1) concurrent sexual partnerships were the norm among male students and increasingly common among female students; (2) material gain and changes in women's perceptions of their roles and power in relationships were the primary female motives for concurrency; (3) peer pressure, a perceived innate need and a fear of being alone were the primary male motives for concurrency; (4) women often know that their partners are cheating and stay with them because they believe they are the most important partner, for financial reasons, or because they worry they will not find another partner. CONCLUSIONS: HIV prevention interventions in populations where concurrency is common would benefit from emphasising women's role and power in taking greater control of their own sexual decision-making in consensual and nonviolent relationships.


Asunto(s)
Grupos Focales , Universidades , Infecciones por VIH/prevención & control , Humanos , Conducta Sexual , Parejas Sexuales , Estudiantes
20.
J Public Health Afr ; 2(2): e28, 2011 Sep 05.
Artículo en Inglés | MEDLINE | ID: mdl-28299069

RESUMEN

Despite over two decades of extensive research showing that male circumcision protects against heterosexual acquisition of HIV in men, and that includes findings from large randomized controlled trials leading to acceptance by the WHO/UNAIDS and the Cochrane Committee, opponents of circumcision continue to generate specious arguments to the contrary. In a recent issue of the Journal of Public Health in Africa, Van Howe and Storms claim that male circumcision will increase HIV infections in Africa. Here we review the statements they use in support of their thesis and show that there is no scientific basis to such an assertion. We also evaluate the statistics used and show that when these data are properly analyzed the results lead to a contrary conclusion affirming the major role of male circumcision in protecting against HIV infection in Africa. Researchers, policy makers and the wider community should rely on balanced scholarship when assessing scientific evidence. We trust that our assessment may help refute the claims by Van Howe and Storms, and provide reassurance on the importance of circumcision for HIV prevention.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA