DPDx Laboratory Identification of Parasites of Public Health Concerns
Including Life cycle
This operational guide addresses important infection prevention and control (IPC) measures that should be implemented during a diphtheria outbreak and primarily addresses respiratory Corynebacterium diphtheriae (C. diphtheria).
This document provides detailed guidance on laboratory testing for suspected diphtheria cases during significant outbreaks or in low-resource settings. It aims to supplement and build on other existing WHO guidance documents on surveillance standards, diagnostics and research on Corynebacterium by p...roviding key considerations for laboratories that allow the rationalization and optimization of testing during outbreaks. The recommendations given here have been prepared by WHO in consultation with, and reviewed by, global experts with experience in laboratory analysis of Corynebacterium species and in outbreak settings, or with expertise in developing new technologies for diphtheria research and diagnosis. Unless otherwise stated, the considerations provided apply to diphtheria outbreaks caused by toxin-producing C. diphtheriae with a classical respiratory diphtheria presentation.
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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, 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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To meet the need for laboratory diagnosis to be integrated in community care, the new 2022 Update describes point-of-care tests that can be performed both in district laboratories and peripheral healthcare facilities by non-specialist staff. Also included are recently developed self-tests.
The World Health Organization’s (WHO) global report for the year 2019 indicates that sub-Saharan Africa (SSA) has a very high maternal mortality rate (MMR) with a 2017 point estimate of 542 (UI 498 to 649) maternal deaths per 100 000 live births, accounting for approximately 66% of estimated globa...l maternal deaths. Despite recent improvements, current analysis confirms that millions of mothers and children are still dying every year because of severe anaemia due to insufficient blood supply. The lack of blood to treat severe perinatal haemorrhage contributes to up to 72% of maternal deaths (2,3). Similarly, delayed transfusion has been associated with increased infant mortality in cases of paediatric malaria-associated anaemia (4,5). Indeed, safe and reliable blood and blood products remain unavailable to many people living in the world’s poorest countries, particularly in SSA. While the need for blood is universal, there is a significant imbalance between developing and industrialized countries accessing safe blood.
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Biosafety involves the implementation of containment principles, technologies and practices to prevent unintentional exposure to biological agents. Biosecurity involves the protection, control and accountability of biological materials and information related to these materials and dualuse research,... to prevent their unauthorized access, loss, theft, misuse, diversion or intentional release.
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Policy Brief. 24 June 2022. This policy brief, one of two on the updated hepatitis C (HCV) guidelines, focuses on the new recommendations on simplified service delivery for a public health approach to HCV testing, care and treatment. These recommendations include decentralization, integration and ta...sk-sharing, in addition to the use of point-of-care (POC) HCV viral load assays and reflex viral load testing.
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Laboratory Safety Handbook. Global edition
Las pruebas de cultivo y sensibilidad a fármacos son necesarias especialmente para los pacientes con riesgo de tuberculosis resistente a los medicamentos y para vigilar su respuesta al tratamiento. Si bien el cultivo y las pruebas de sensibilidad son ca...da vez más accesibles, la infraestructura para realizarlos es compleja y requiere equipos especializados y costosos. Con vistas a garantizar que el personal de laboratorio realice su trabajo de forma correcta y segura, este manual ofrece una guía práctica mediante textos sencillos e ilustraciones claras que ayudan a comprender los problemas de seguridad conexos. De ahí la importancia de su publicación en español para la red de laboratorios nacionales y supranacionales que apoya la Organización Panamericana de la Salud en la Región de las Américas.
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Biosafety involves the implementation of containment principles, technologies and practices to prevent unintentional exposure to biological agents. Biosecurity involves the protection, control and accountability of biological materials and information related to these materials and dualuse research,... to prevent their unauthorized access, loss, theft, misuse, diversion or intentional release.
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he Framework sets the requirements for facilities handling High Consequence Agents and Toxins (HCATs) and guides the implementation of laboratory biosafety and biosecurity practices associated with the design, commissioning, routine operation safe and secure biocontainment laboratories.
This document is a guide defining requirements for quality and safety for malaria rapid diagnostic testing services to safeguard the quality of the results, the safety of the operators and patients and that of the environment for use by national malaria control programmes, regulators, implementers a...nd rapid diagnostic providers.
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Biosafety involves the implementation of containment principles, technologies and practices to prevent unintentional exposure to biological agents. Biosecurity involves the protection, control and accountability of biological materials and information related to these materials and dualuse research,... to prevent their unauthorized access, loss, theft, misuse, diversion or intentional release.
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HAT diagnosis relies on laboratory techniques because clinical signs and symptoms are unspecific. Serodiagnostic tests exist only for Tbg and are based on the detection of specific antibodies, thus they are not confirmatory of infection. With the current low disease prevalence, the positive predicti...ve value of serological tests is particularly low. Field-applicable tools include the card agglutination test for trypanosomiasis (CATT) used mainly in active screening by specialized mobile teams, and the rapid diagnostic tests that are more suitable for individual testing at point-of-care. Confirmation of Tbg infection requires microscopic examination of body fluids necessitating specific training. The best performing methods are laborious and reach 85–95% diagnostic sensitivity when performed by skilled personnel.
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HAT diagnosis relies on laboratory techniques because clinical signs and symptoms are unspecific. Serodiagnostic tests exist only for Tbg and are based on the detection of specific antibodies, thus they are not confirmatory of infection. With the current low disease prevalence, the positive predicti...ve value of serological tests is particularly low. Field-applicable tools include the card agglutination test for trypanosomiasis (CATT) used mainly in active screening by specialized mobile teams, and the rapid diagnostic tests that are more suitable for individual testing at point-of-care.
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Biosafety involves the implementation of containment principles, technologies and practices to prevent unintentional exposure to biological agents. Biosecurity involves the protection, control and accountability of biological materials and information related to these materials and dualuse research,... to prevent their unauthorized access, loss, theft, misuse, diversion or intentional release.
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