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 re...port 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.
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5 April 2022, Addendum. This policy brief confirms WHO guidance and policy on injection safety in the context of the extraordinary increase in global injections resulting from COVID-19 immunization campaigns. It also calls attention to information on specialized syringes for COVID-19 vaccines and br...oad short-term and long-term solutions to address and alleviate supply shortages related to vaccine products with non-standard dose volumes.
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Safe drinking-water management must consider drinking-water quality, acceptability and quantity in the context of public health protection. In this manual, the term “safety” encompasses these three elements. Although the principles in this manual can be broadly applied to all types of drinking-w...ater supplies, the guidance is primarily intended for piped water supplies that are professionally managed (by a water supplier or equivalent management entity).The guidance may be applied to existing drinking-water supplies, or adapted for water supplies that are in the planning stage before construction.
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Lancet Planet Health 2022;6: e760–68
The emergence of COVID-19 has drawn the attention of health researchers sharply back to the role that food systems can play in generating human disease burden. But emerging pandemic threats are just one dimension of the complex relationship between agriculture... and infectious disease, which is evolving rapidly, particularly in low-income and middle-income countries (LMICs) that are undergoing rapid food system transformation. This changing relationship is examined through four current disease issues.
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DHS ANALYTICAL STUDIES 56
Bangladesh, Cambodia, India, Indonesia, Nepal, Pakistan, Philippines
Fighting malaria and Saving Lives, Accessed Febr. 23, 2017
communicable Disease Toolkit
Download these technical notes directly from the website: These four-page illustrated notes, originally prepared in 2011 and updated in 2013, provide practical, evidence-based recommendations in responding to immediate and medium-term water, sanitation and hygiene needs of populations affected by e...mergencies.
The notes are relevant to a wide range or emergency situations, including both natural and conflict-induced disasters. They are suitable for field technicians, engineers and hygiene promotors, as well as staff from agency headquarters.
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Building communication and counseling skills
This document updates the 2009 ECDC guidance on chlamydia control in Europe. It was developed by a technical expert group which conducted a critical review of the scientific evidence on the epidemiology of chlamydia and the effectiveness of screening programmes.
The aim of this guidance is to suppo...rt Member States to develop, implement or improve strategies for chlamydia control. This guidance describes the current evidence base behind the proposed options, highlights key gaps in knowledge, and suggests effective options for national chlamydia control strategies. It is directed primarily at policy advisors but should also be useful for programme managers and experts in sexual health.
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The purpose of this paper is to clarify relevant terminologies and approaches relating to psychosocial well-being and social and emotional learning (SEL) in education in crisis affected contexts, and to explore how psychosocial support (PSS) and social and emotional learning relate to one another.
DHS Analytical Studies No. 41