The World Health Organization (WHO) endorses the use of population-based prevalence surveys for estimating the prevalence of trachoma. In general, the prevalence of TF in children aged 1–9 years and the prevalence of TT in adults aged ≥ 15 years are measured at the same time in any district bein...g surveyed. This was the approach of the Global Trachoma Mapping Project, which undertook baseline surveys in > 1500 districts worldwide in order to provide the data required to start interventions where needed.
The survey design recommended by WHO is a two-stage cluster random sample survey, which uses probability proportional to size sampling to select 20–30 villages, and random, systematic or quasi-random sampling to select 25–30 households in each of those villages. In most surveys, everyone aged ≥ 1 year living in selected households is examined.
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Briefing note prepared by the IFRC Reference Centre for Psychosocial Support, August 2014
BMJ 2009; 338 doi: https://doi.org/10.1136/bmj.b158 (Published 05 February 2009)
Cite this as: BMJ 2009;338:b158
Correspondence to: A Burns alistair.burns@manchester.ac.uk
2nd revised edition. Accessed Apri. 17, 2019
Prevention strategies based on scientific evidence working with families, schools, and communities can ensure that children and youth, especially the most marginalized and poor, grow and stay healthy and safe into adulthood and old age. For every dollar ...spent on prevention, at least ten can be saved in future health, social and crime costs.
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Research Article
Karo et al. BMC Infectious Diseases 2014, 14:148 http://www.biomedcentral.com/1471-2334/14/148
FAO’s component of the Global COVID-19 Humanitarian Response Plan
18.5.2020
30 January 2020
This document outlines the standard operating procedures for detection and response to case/s of suspected novel coronavirus disease (2019-nCoV) in South Africa. The content of this document should inform provincial preparedness plans.
The leishmaniases are a group of diseases caused by Leishmania spp., which occur in cutaneous, mucocutaneous and visceral forms. They are neglected tropical diseases (NTDs), which disproportionately affect marginalized populations who have limited access to health care. HIV co-infected patients with... Leishmania infection are highly infectious to sandflies, and an increase in the coinfection rate in an endemic area is likely to increase the effective infective reservoir.
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