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April 2022 Volume 35 Issue 2 e00152-21
Population movements have turned Chagas disease (CD) into a global public health problem. Despite the successful implementation of subregional initiatives to control vectorial and transfusional Trypanosoma cr
...
uzi transmission in Latin American settings where the disease is endemic, congenital CD (cCD) remains a significant challenge. In countries where the disease is not endemic, vertical transmission plays a key role in CD expansion and is the main focus of its control. Although several health organizations provide general protocols for cCD control, its management in each geopolitical region depends on local authorities, which has resulted in a multitude of approaches. The aims of this review are to (i) describe the current global situation in CD management, with emphasis on congenital infection, and (ii) summarize the spectrum of available strategies, both official and unofficial, for cCD prevention and control in countries of endemicity and nonendemicity. From an economic point of view, the early detection and treatment of cCD are cost-effective. However, in countries where the disease is not endemic, national health policies for cCD control are nonexistent, and official regional protocols are scarce and restricted to Europe. Countries of endemicity have more protocols in place, but the implementation of diagnostic methods is hampered by economic constraints. Moreover, most protocols in both countries where the disease is endemic and those where it is not endemic have yet to incorporate recently developed technologies. The wide methodological diversity in cCD diagnostic algorithms reflects the lack of a consensus. This review may represent a first step toward the development of a common strategy, which will require the collaboration of health organizations, governments, and experts in the field.
more
Comprehensive Guidelines for Prevention and Control of Dengue and Dengue Haemorrhagic Fever -Revised and expanded edition
World Health Organization World Health Organization WHO Regional Office for South-East Asia
WHO Regional Office for South-East Asia
(2011)
CC
Revised and expanded version of the Guidelines
Research and Reports in Tropical Medicine 2022:13 25–40.
Chagas disease (CD) is caused by the parasite Trypanosoma cruzi, and it is endemic in Central, South America, Mexico and the South of the United States. It is an important cause
...
of early mortality and morbidity, and it is associated with poverty and stigma. A third of the cases evolve into chronic cardiomyopathy and gastrointestinal disease. This review proposes strategies to address challenges faced by non-endemic countries
more
This analysis focused on the chronic form of HAT caused by T. b. gambiense, as it contributes to the majority of disease burden. Information from the literature review,
product development landsca
...
pe, and stakeholder interviews was compiled to:
- Identify use cases and understand current diagnostic practices and tools associated with each use case.
- Analyze progress toward robust diagnostics for HAT across different biomarkers.
- Develop recommendations for steps to improve the availability, access, and adoption of HAT diagnostic tools.
more
The WHO continuously reviews available data on SARS-CoV-2 variants of concern. For this version, the global epidemiological
situation of the COVID-19 pandemic as
...
of 21 January 2022 – at a time when the Omicron VOC had been identified in 171
countries across all six WHO Regions and was rapidly replacing Delta worldwide – was considered Omicron has a substantial growth advantage, higher secondary attack rates and a higher observed reproduction number than Delta.
There is now significant evidence that immune evasion contributes to the rapid spread of Omicron. Other factors may be a shorter
serial interval (by about 0.8 to 1.2 days compared to Delta) and potential increased intrinsic transmission fitness . There is
growing evidence that with Omicron, there is lower vaccine effectiveness (VE) against infection and symptomatic disease soon after vaccination compared to Delta. There is also evidence of accelerated waning of VE over time of the primary series against infection and symptomatic disease for the studied vaccines. Further studies are required to better understand the drivers of transmission and declining incidence in various settings. These factors include the intrinsic transmission fitness properties of the virus, degree of immune evasion, vaccination coverage and level of vaccine-derived and post-infection immunity, levels of social mixing and degree of application of public health and social measures (PHSM).
more
With sustained economic growth in many parts of the developing world, an increasing number of countries are transitioning away from the most subsidized development finance as they exceed income and
...
other qualification requirements. Cross-country evidence suggests that Development Assistance Committee (DAC) donors view the crossing over of the World Bank’s International Development Association (IDA) eligibility threshold to signal that a country needs less aid, with subsequent reductions in both IDA and other donors’ concessional funding. Within the health sector, it is particularly important to understand the implications of these status changes for children under five years of age since improving early childhood health is critical to fostering health and social and economic development. Therefore, we examine the implications of the IDA transition by measuring the extent t which World Bank commitments—including both IDA and IBRD—are directed to infant and child health needs in Nigeria. Ordinary Least Squares (OLS) models were used in a difference-indifferences (DID) strategy to compare World Bank IBRD/IDA lending before and after the crossover to regions with varying initial levels of under-five and infant need.
more
There is growing understanding and high-level endorsement of the importance of strong collaborative multisectoral approaches to address a broad range of
...
social, economic and governance issues for the prevention and control of noncommunicable disease (NCDs) and mental health conditions. In 2019, World Health Organization (WHO) Member States requested the WHO Director-General to provide an analysis across countries of successful approaches for the prevention and control of NCDs that used multisectoral action.This report describes the experiences of different countries, areas and territories in implementing multisectoral actions to tackle NCDs and is the first step to address their request for an analysis of such efforts
more
Development assistance for health (DAH) is an important part of financing healthcare in low- and middle-income countries. We estimated the gross disbursement of DAH
...
of the 29 Development Assistance Committee (DAC) member countries of the Organisation for Economic Co-operation and Development (OECD) for 2011–2019; and clarified its flows, including aid type,
channel, target region, and target health focus area. Data from the OECD iLibrary were used. The DAH definition was based on the OECD sector classification. For core funding to non-healthspecific multilateral agencies, we estimated DAH and its flows based on the OECD methodology for
calculating imputed multilateral official development assistance (ODA).
more
Socioeconomic status is associated with differences in risk factors for cardiovascular disease incidence and outcomes, including mortality. However, it is unclear whether the associations between cardiovascular disease and common measures of socioec
...
onomic status—wealth and education—differ among high-income, middle-income, and low-income countries, and, if so, why these differences exist. We explored the association between education and household wealth and cardiovascular disease and mortality to assess which marker is the stronger predictor of outcomes, and examined whether any differences in cardiovascular disease by socioeconomic status parallel differences in risk factor levels or differences in management.
more
Background
Low- and middle-income countries now experience the highest prevalence and mortality rates of cardiovascular disease.
Main text
While improving the availability and delivery of prove
...
n, effective therapies will no doubt mitigate this burden, we posit that studies evaluating cardiovascular disease risk factors, management strategies and service delivery, in diverse settings and diverse populations, are equally critical to improving outcomes in low- and middle-income countries. Focusing on examples drawn from four cardiovascular diseases — coronary artery disease, stroke, diabetes and kidney disease — we argue that ethnicity, culture and context matter in determining the risk factors for disease as well as the comparative effectiveness of medications and other interventions, particularly diet and lifestyle interventions.
Conclusion
We believe that a host of cohort studies and randomized control trials currently being conducted or planned in low- and middle-income countries, focusing on previously understudied race/ethnic groups, have the potential to increase knowledge about the cause(s) and management of cardiovascular diseases across the world.
more
Obesity and diabetes are affecting the peoples of the Americas at high and increasing rates. National surveys demonstrate that obesity is increasing in prevalence among all age groups; 7% to 12% of
...
children under 5 years old and
one-fi fth of adolescents are obese, while rates of overweight and obesity among adults approach 60%. Obesity is the major modifi able risk factor for diabetes.
more
The Public Health Burden of Secondhand Exposure to Commercial Tobacco Smoke Secondhand smoke, the combination of smoke from burning commercial tobacco* products and the smoke breathed out by a perso
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n who is smoking, is deadly.
more
Smallpox eradication was certified in 1980. Mpox has been endemic in Central and West African countries since it was first detected in 1958 . It is a zoonosis; cases are often found close to tropical rainforests where various animals carry the orthopoxvirus that causes the disease. In endemic countr
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ies, most mpox infections in humans result from a primary animal-to-human transmission. Human-to-human transmission can result from close contact with respiratory secretions, skin lesions of an infected person, or recently contaminated objects. Transmission can also occur via the placenta from mother to fetus or through close contact during and after birth.
more
Care for persons with noncommunicable diseases (NCDs), such as cardiovascular disease, diabetes, cancer, and chronic obstructive pulmonary disease, is a major health priority for most countries worldwide, particularly for low-middle income countries where the problem seems to be worsening. Globally,
...
research demonstrates that the vast majority of people with NCDs receive suboptimal care. Many people living with chronic conditions remain undiagnosed and unaware of their condition, while many others remain untreated or with inadequate control. Meanwhile the premature mortality caused by NCDs remains high in many countries. In response to the global epidemic of NCDs, the World Health Organization (WHO) launched the Global Strategy for the Prevention and Control of Noncommunicable Diseases in 2012, which establishes 9 voluntary global targets and indicators to be considered by Member States when formu- lating national plans to combat NCDs.
more
On 14 August 2024, the Director-General of the World Health Organization determined that the upsurge of mpox in a growing number of countries in Af
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rica constitutes a new public health emergency of international concern (PHEIC) under the International Health Regulations (IHR) (2005)
more
In 2022, Namibia had an estimated population of 2.6 million people, where 51 per cent per cent are females and 52.5 per cent of households in urban areas, with fast-growing urban informal settlement
...
s which lack access to basic services. Namibia has a young population; 42 per cent are children (0-17 years), 13 per cent are under-five, per cent and 19 per cent are aged 15 to 24 years. With the right investment on children and youth, this represents an opportunity for a demographic dividend.
more
Every day, schools engage in numerous activities that help promote the health and well-being of students, families, and communities. There is clear evidence of the benefits
...
of the health-promoting schools (HPS) approach, not only for improving overall health outcomes (physical, mental, and social) in the educational community but also for achieving better learning outcomes. The closure of schools during the COVID-19 pandemic highlighted these benefits, as well as the close links between health, wellness, and education.
more
The present guidelines incorporate all these changes, leading to a substantial reconfiguration of therapeutic choices for both disease forms.
HAT is a serious, life-threatening disease and the efficacy of
...
fexinidazole depends on swallowing the medicine after an appropriate intake of food as well as on completing the full 10-day treatment schedule. Therefore, the recommendations regarding fexinidazole administration are considered key elements that must be carefully followed. When the conditions listed in these guidelines are not met for any individual patient, the alternative available treatments should be prescribed.
more
Indoor residual spraying (IRS) involves applying residual insecticide to potential vector resting sites on the interior surfaces of human dwellings or other buildings. The main aim of IRS is to kill
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vectors before they are able to transmit pathogens to humans. When carried out correctly, IRS has historically been shown to be a powerful intervention to reduce adult vector density and longevity for mosquitoes, sand flies and triatomine bugs and can reduce the transmission of vector-borne diseases.
more
One approach to development assistance for health, or health aid, emphasizes the ex ante selection of cost-effective health interventions, an approach that began with the World Development Report (1993) on Investing in Health and has since been adop
...
ted by the Effective Altruism community. But just how much of health aid is cost-effective? In this paper, we examine projects in the Organisation for Economic Co-operation and Development (OECD) Creditor Reporting System, the standard dataset that measures and characterizes development assistance for health, for the
years 2019 to 2021, and count the number of projects that refer to interventions from a list of highly cost-effective interventions as defined by the Disease Control Priorities Project, third edition. This exploratory quantitative analysis indicates that 61% of projects used a key word/phrase of a costeffective intervention. There were 11.9 interventions mapped per project on average. There is little evidence that donors tailor the set of interventions to country income levels by cost-effectiveness.
Policymakers may benefit from reviewing the full portfolio of interventions covered by domestic and external resources.
more
