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PlosOne December 10, 2014 https://doi.org/10.1371/journal.pone.0111913
Plastic pollution is ubiquitous throughout the marine environment, yet estimates of the global abundance and weight of floating plastics have lacked data, particularly from the
...
Southern Hemisphere and remote regions. Here we report an estimate of the total number of plastic particles and their weight floating in the world's oceans from 24 expeditions (2007–2013) across all five sub-tropical gyres, costal Australia, Bay of Bengal and the Mediterranean Sea conducting surface net tows (N = 680) and visual survey transects of large plastic debris (N = 891). Using an oceanographic model of floating debris dispersal calibrated by our data, and correcting for wind-driven vertical mixing, we estimate a minimum of 5.25 trillion particles weighing 268,940 tons. When comparing between four size classes, two microplastic <4.75 mm and meso- and macroplastic >4.75 mm, a tremendous loss of microplastics is observed from the sea surface compared to expected rates of fragmentation, suggesting there are mechanisms at play that remove <4.75 mm plastic particles from the ocean surface.
more
For health care providers.
Sub-Saharan Africa has the highest maternal mortality in the world. According to estimates by the United Nations Maternal Mortality Estimation Inter-Agency Group (UN MMEIG)1 in September 2017, while the African Region had
...
recorded a significant decline in maternal mortality rate (MMR) of 37.8% between 2000 and 2017, 66% of the 295 000 maternal deaths reported globally occurred in sub-Saharan Africa. The African Region is also noted to have an extremely high MMR, estimated at 542 per 100000 livebirths, with an average annual rate of reduction of 2.9%.
more
A critical building block to achieving the global goal of universal hand hygiene by 2030 is adequate levels of funding. Understanding the costs of implementing hand hygiene plans is an essential precursor to fund allocation. This tool aims to provide country-specific cost
...
estimates of achieving universal hand hygiene in households by 2030. It has been developed jointly by WHO and UNICEF, through a consultancy with WASHeconomics, and with input from the London School of Hygiene and Tropical Medicine, the World Bank and WaterAid
more
Weekly epidemiological record 18 July 2025
This report summarizes application of the SAFE strategy against trachoma during 2024. It includes estimates of the global population at risk of trachoma blindness based on district-by-district data submitt
...
ed to WHO by national programmes.
more
Schistosomiasis is an acute and chronic parasitic disease caused by blood flukes (trematode worms) of the genus Schistosoma. Estimates show that at least 251.4 million people required preventive treatment in 2021. Preventive treatment, which should
...
be repeated over a number of years, will reduce and prevent morbidity. Schistosomiasis transmission has been reported from 78 countries. However, preventive chemotherapy for schistosomiasis, where people and communities are targeted for large-scale treatment, is only required in 51 endemic countries with moderate-to-high transmission.
more
Soil transmitted helminth (STH) infections are among the most common human infections worldwide with over 1 billion people affected. Many estimates of STH infection are often based on school-aged children (SAC). This study produced predictive risk-m
...
aps of STH on a more finite scale, estimated the number of people infected, and the amount of drug required for preventive chemotherapy (PC) in Ogun state, Nigeria. Georeferenced STH infection data obtained from a cross-sectional survey at 33 locations between July 2016 and November 2018, together with remotely-sensed environmental and socio-economic data were analyzed using Bayesian geostatistical modelling. Stepwise variable selection procedure was employed to select a parsimonious set of predictors to predict risk and spatial distribution of STH infections. The number of persons (pre-school ages children, SAC and adults) infected with STH were estimated, with the amount of tablets needed for preventive chemotherapy. An overall prevalence of 17.2% (95% CI 14.9, 19.5) was recorded for any STH infection. Ascaris lumbricoides infections was the most predominant, with an overall prevalence of 13.6% (95% CI 11.5, 15.7), while Hookworm and Trichuris trichiura had overall prevalence of 4.6% (95% CI 3.3, 5.9) and 1.7% (95% CI 0.9, 2.4), respectively. The model-based prevalence predictions ranged from 5.0 to 23.8% for Ascaris lumbricoides, from 2.0 to 14.5% for hookworms, and from 0.1 to 5.7% for Trichuris trichiura across the implementation units. The predictive maps revealed a spatial pattern of high risk in the central, western and on the border of Republic of Benin. The model identified soil pH, soil moisture and elevation as the main predictors of infection for A. lumbricoides, Hookworms and T. trichiura respectively. About 50% (10/20) of the implementation units require biannual rounds of mass drug administration. Approximately, a total of 1.1 million persons were infected and require 7.8 million doses. However, a sub-total of 375,374 SAC were estimated to be infected, requiring 2.7 million doses. Our predictive risk maps and estimated PC needs provide useful information for the elimination of STH, either for resource acquisition or identifying priority areas for delivery of interventions in Ogun State, Nigeria.
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Background
The ambitious development agenda of the Sustainable Development Goals (SDGs) requires substantial investments across several sectors, including for SDG 3 (healthy lives and wellbeing). No estimates of the additional resources needed to
...
strengthen comprehensive health service delivery towards the attainment of SDG 3 and universal health coverage in low-income and middle-income countries have been published.
Methods
We developed a framework for health systems strengthening, within which population-level and individual-level health service coverage is gradually scaled up over time. We developed projections for 67 low-income and middle-income countries from 2016 to 2030, representing 95% of the total population in low-income and middle-income countries. We considered four service delivery platforms, and modelled two scenarios with differing levels of ambition: a progress scenario, in which countries’ advancement towards global targets is constrained by their health system’s assumed absorptive capacity, and an ambitious scenario, in which most countries attain the global targets. We estimated the associated costs and health effects, including reduced prevalence of illness, lives saved, and increases in life expectancy. We projected available funding by country and year, taking into account economic growth and anticipated allocation towards the health sector, to allow for an analysis of affordability and financial sustainability.
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The Global Burden of Disease (GBD) 2010 Study has published disability-adjusted life year (DALY) data
at both regional and country levels from 1990 to 2010. Concurrently, the Institute for Health Metrics and Evaluation
(IHME) has published estimates
...
of development assistance for health (DAH) at the country-disease level for this
same period of time.
more
Financing Global Health 2013: Transition in an Age of Austerity, IHME’s fifth annual report on global health expenditure, depicts financing trends that underline the resilience of development assistance for health. This year’s updated estimates
...
show that despite lackluster economic growth and fiscal cutbacks in many developed countries, total assistance remained steady, reaching an all-time high of $31.3 billion in 2013. While annual increases have leveled off since 2010, continued international funding is a sign of the international development community’s enduring support for global health.
The report also shows shifts in sources of financing. As funding from many bilateral donors and development banks has declined, growth in funding from the GAVI Alliance, the Global Fund to Fight AIDS, Tuberculosis and Malaria, non-governmental organizations, and the UK government is counteracting these cuts. Development assistance for different health issues is tracked up to 2011, revealing that the greatest increase in funding was for maternal, newborn, and child health.
more
Financing Global Health 2015 is the seventh edition of IHME’s annual series on global health financing. This report captures trends in development assistance for health (DAH) and government health expenditure as source (GHE-S) in low- and middle-income countries. Annually updated GHE-S and DAH
...
estimates are produced to aid decision-makers and other global health stakeholders in identifying funding gaps and invesment opportunities vital to improving population health. This year, IHME made a number of improvements to the data collection and methods implemented to generate Financing Global Health estimates.
more
In In recent years, China has increased its international engagement in health. Nonetheless, the lack
of data on contributions has limited efforts to examine contributions from China. Existing estimates that track
development assistance for health
...
(DAH) from China have relied primarily on one dataset. Furthermore, little is known
about the disbursing agencies especially the multilaterals through which contributions are disbursed and how these
are changing across time. In this study, we generated estimates of DAH from China from 2007 through 2017 and
disaggregated those estimates by disbursing agency and health focus area.
more
An unprecedented amount of money is being pledged and used to fund health research and services throughout the
world. Although estimates are diffi cult to obtain, the 2004 estimate for international health funding was about
US$14 billion, and is r
...
apidly increasing, largely because of the emergence and growth of the Bill & Melinda Gates Foundation (BMGF) and the US Government’s AIDS initiative
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Anaemia is a global public health concern, especially afflicting adolescent girls, women 15–49 years of age, pregnant women, and children in low- and middle-income countries. WHO estimates that in 2019 30% (571 million) of women aged 15–49 years
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, 37% (32 million) of pregnant women, and 40% (269 million) of children 6–59 months of age were affected by anaemia, with the WHO African Region and South-East Asia
Region being most affected(
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Type 1 diabetes is reported to have significant mortality in Africa. However, there is a paucity of data on pooled estimates of its incidence and prevalence in Africa. This first systematic review and meta-analysis will be conducted to determine the
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incidence and prevalence of this condition in Africa.
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Epidemiology of type 2 diabetes in India
Pradeepa, R.; Mohan, V.
Indian Journal of Ophthalmology 69(11):p 2932-2938, November 2021.
(2021)
CC2
The burden of diabetes is high and increasing globally, and in developing economies like India, mainly fueled by the increasing prevalence of overweight/obesity and unhealthy lifestyles. The estimates in 2019 showed that 77 million individuals had d
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iabetes in India, which is expected to rise to over 134 million by 2045. Approximately 57% of these individuals remain undiagnosed. Type 2 diabetes, which accounts for majority of the cases, can lead to multiorgan complications, broadly divided into microvascular and macrovascular complications. These complications are a significant cause for increased premature morbidity and mortality among individuals with diabetes, leading to reduced life expectancy and financial and other costs of diabetes leading to profound economic burden on the Indian health care system. The risk for diabetes is largely influence by ethnicity, age, obesity and physical inactivity, unhealthy diet, and behavioral habits in addition to genetics and family history. Good control of blood sugar blood pressure and blood lipid levels can prevent and/or delay the onset of diabetes complications. The prevention and management of diabetes and associated complications is a huge challenge in India due to several issues and barriers, including lack of multisectoral approach, surveillance data, awareness regarding diabetes, its risk factors and complications, access to health care settings, access to affordable medicines, etc. Thus, effective health promotion and primary prevention, at both, individual and population levels are the need of the hour to curb the diabetes epidemic and reduce diabetes-related complications in India
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Outdoor air pollution is one of the world's largest health and environmental problems. The Global Burden of Disease is a major global study on the causes and risk factors for death. These estimates of the annual number of deaths attributed to a wide
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range of risk factors are shown here. This chart is shown for the global total but can be explored for any country or region using the "change country or region" toggle.
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In recent decades, India has witnessed a rapidly exploding epidemic of diabetes.
Indeed, India today has the second largest number of people with diabetes in the
world. The International Diabetes Federation (IDF) estimates that there are 72.9 mill
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ion people with diabetes in India in 2017, which is projected to rise to 134.3 million by the year 2045. The prevalence of diabetes in urban India, especially in large metropolitan cities has increased from 2% in the 1970s to over 20% at present and the rural areas are also fast catching up.
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The study analyzes the global burden of cancer in 2020 attributable to alcohol consumption. Using data from the GLOBOCAN 2020 database and alcohol consumption patterns, it estimates that 4.1% of all new cancer cases globally (approximately 741,300 c
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ases) were caused by alcohol. The most affected cancers include esophageal, liver, and breast cancer, with heavy drinking contributing the most cases, followed by risky and moderate drinking. The study highlights regional differences, with the highest attributable fractions in Eastern Asia and Central and Eastern Europe. It underscores the need for policies to raise awareness about alcohol-related cancer risks and reduce alcohol consumption globally.
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Asthma has a significant impact on people of all ages, particularly children. A lack of universally accepted case definition and confirmatory tests and a poor understanding of major risks interfere with a global response. We aimed to provide global estimat
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es of asthma prevalence and cases in 2019 across four main epidemiological case definitions – current wheezing, ever wheezing, current asthma, and ever asthma. We further investigated major associated factors to determine regional and national distributions of prevalence and cases for current wheezing and ever asthma.
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Asthma is the most common noncommunicable disease in children, and among the most common in adults. According to the most recent estimates from the Global Asthma Network Phase I study, around one in 10 children and adults have symptoms of asthma and
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one in 20 school-aged children have severe asthma symptoms, with marked variations in prevalence and in prevalence trends between countries and regions of the world. The Global Burden of Disease Study estimated that asthma caused the loss of 21.6 million healthy years of life (disability-adjusted life years) and 461 069 deaths in 2019. Approximately 90% of the asthma burden of disease is borne by people living low and middle income countries (LMICs). Some countries report very high (up to 90%) rates of uncontrolled asthma. While the prevalence of asthma is highest in countries with a high Socio-Demographic Index (SDI), death rates from asthma are highest in countries with low and lower middle incomes.
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