Nested case-control study of health workers exposed to confirmed COVID-19 patients.
Similar objectives to the cohort study but case-control studies may be cheaper and provide robust evidence to characterize and assess the risk factors for SARS-CoV-2 infection in health workers exposed to COVID-19 p...atients.
Health workers with confirmed COVID-19 will be recruited as cases and other health workers in the same health care setting without infection will be recruited as controls (incidence density sampling).
Secondary objectives are similar to the cohort study.
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Learning from the Use of Data, Information, and Digital Technologies in the West Africa Ebola Outbreak Response
14 July 2021 This article is part of a series of explainers on vaccine development and distribution. Learn more about vaccines – from how they work and how they’re made to ensuring safety and equitable access – in WHO’s Vaccines Explained series.
COVID-19 vaccines have proven to be safe, ...effective and life-saving. Like all vaccines, they do not fully protect everyone who is vaccinated, and we do not yet know how well they can prevent people from transmitting the virus to others. So as well as getting vaccinated, we must also continue with other measures to fight the pandemic.
Available in English, French, Spanish, Arabic, Chinese and Russian
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he National Department of Health (NDOH) presents this Malaria Elimination Strategic
Plan 2019-2023 for the Republic of South Africa. The strategy comes at an important time
as the Southern African Development Community (SADC) heads of state have recently
renewed the commitment to eliminate malari...a in Botswana, Eswatini, Namibia and South
Africa by 2020 and in the whole SADC region by 2030, with the target of zero local malaria
cases and deaths. South Africa has made steady progress towards this elimination goal
through the implementation of evidence-based malaria policies aligned to the World Health
Organization’s (WHO) Global Technical Strategy.
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Reporting period: January 2008-December 2010
Accessed: 29.09.2019
Accessed January 2019, publication date unknown.
based on information as at 28 February 2021
Rapid Policy Brief Series Series 14: COVID-19 and hypertension
Presentation Current WHO guidance, strategies and lessons learnt of pre- and post-validation surveillance of NTDs
The National Strategic Plan for Malaria Elimination 2021–2025 outlines Bangladesh’s roadmap to achieve zero indigenous malaria cases by 2030, with an interim goal to reduce transmission to near-zero levels by 2025. The strategy builds upon earlier successes in malaria control and shifts focus to...ward elimination in both high- and low-endemic areas.
The plan emphasizes five core objectives: ensuring universal access to quality malaria prevention and treatment services, strengthening surveillance and case detection systems, improving vector control through long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS), building community engagement, and enhancing program governance and accountability.
High-priority districts, especially in the Chittagong Hill Tracts, are targeted for intensified interventions, including active case detection and tailored outreach to mobile and vulnerable populations. The strategy also calls for robust health systems support, cross-border collaboration, and integration of malaria services into broader primary health care.
This document serves as Bangladesh’s strategic foundation to transition from malaria control to phased elimination, in line with national and global targets.
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This global guidance was developed to support malaria-free countries and those that are close to malaria elimination to prevent re-establishment. The document outlines key concepts and principles for preventing re-establishment and provides guidance on strategies, interventions, planning and managem...ent. Country examples are included to highlight good practices and illustrate practical applications.
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The Manual for Parasitological Surveillance in Prevention of Reintroduction or Re-establishment of Malaria in Sri Lanka (2019) provides guidelines to health professionals on how to conduct effective malaria surveillance to prevent the reintroduction of the disease in Sri Lanka, which was certified m...alaria-free in 2016.
The manual outlines strategies for active and passive case detection, laboratory diagnosis, case investigation, foci investigation, and follow-up measures. It emphasizes targeted screening of high-risk populations, including travelers and migrant workers, and explains the importance of prompt reporting, accurate parasitological confirmation, and coordination between healthcare levels. The overall goal is to maintain Sri Lanka’s malaria-free status by ensuring early detection and rapid response to any imported or locally suspected malaria cases.
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The National Malaria Elimination Strategic Plan (NMESP) 2024–2028 of Ghana outlines the country’s roadmap to shift from malaria control to elimination. Despite major progress—like reducing malaria deaths from nearly 2,800 in 2012 to 151 in 2022—malaria remains a major public health challenge... in Ghana.
The plan aims to reduce malaria deaths by 90% and cases by 50% by 2028 (compared to 2022), and to eliminate malaria entirely in 21 low-burden districts. It includes a mix of interventions such as insecticide-treated nets, indoor residual spraying, seasonal chemoprevention, malaria vaccination, and strong surveillance systems.
The strategy is tailored to the local malaria burden, promotes community engagement, relies on multisectoral partnerships, and ensures adequate resource mobilization. Its ultimate goal is to protect Ghana’s population, improve public health, and support the country’s socioeconomic development.
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The National Strategic Plan on Malaria Prevention and Elimination Period 2021 – 2025 seeks to build on the previous national successes of the National Institute of Malariology, Parasitology, and Entomology (NIMPE) while addressing current challenges to reduce the overall burden of malaria in the S...outhern and Central provinces and to initiate elimination activities in remaining focal areas of transmission throughout the country. The overall targets proposed to be reached by 2025 are:
Reduce malaria morbidity rate to below 0.015/1,000 population
Reduce malaria mortality rate to below 0.002/100,000 population
Eliminate malaria in 55 provinces
Ensure no malaria outbreaks
To address the urgent threat of drug resistance, Viet Nam has committed to accelerate efforts to eliminate locally-acquired P. falciparum by 2023.
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The Rwanda Malaria Strategic Plan 2020–2024 outlines Rwanda’s national strategy to reduce malaria morbidity and mortality by at least 50% compared to 2019 levels. The vision is a malaria-free Rwanda contributing to socioeconomic development.
The plan includes strengthening prevention through lo...ng-lasting insecticide-treated nets, indoor residual spraying, and larval source management; ensuring universal access to testing and treatment; improving surveillance and data use; and enhancing program management, coordination, and financing. It also emphasizes community engagement and behavior change to ensure at least 85% of the at-risk population adopts protective practices.
The strategy builds on past lessons, involves multi-sectoral collaboration, and aligns with global malaria goals. It highlights equity, quality services, and evidence-based interventions as guiding principles, aiming to mobilize national and international resources for sustained impact.
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On 13 August 2024, the Africa Centres for Disease Control (Africa CDC) declared the multi-country mpox outbreak a public health emergency of continental security, with strong recommendations to improve surveillance and vaccine deployment in all AU Member States. On 14 August 2024, the WHO Director-G...eneral declared mpox outbreak a public health emergency of international concern (PHEIC).
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On Global Handwashing Day, WHO and UNICEF have released the first-ever global Guidelines on Hand Hygiene in Community Settings to support governments and practitioners in promoting effective hand hygiene outside health care – across households, public spaces and institutions. Framing hand hygiene ...as a public good and a government responsibility, the Guidelines translate evidence into ready-to-adopt actions that enable sustainable access to effective hygiene services. This will reduce diarrhoeal disease, acute respiratory infections and other preventable illnesses, strengthening routine public health where people live, work, visit and study, and emergency preparedness, including outbreaks like cholera.
Despite clear benefits, 1.7 billion people still lacked basic hand hygiene services at home in 2024, including 611 million with no facility at all. Meeting the 2030 target will require accelerated progress – about a doubling in the global rate, and much faster in specific settings (up to 11-fold in least-developed countries and 8-fold in fragile contexts). Hand hygiene remains one of the most cost-effective health investments, reducing diarrhoea by 30% and acute respiratory infections by 17%, with large, measurable gains for population health.
“Clean hands save lives, but results at scale require policy, financing and accountability,” said Dr Ruediger Krech, Director a.i, Department of Environment, Climate Change, One Health & Migration at the World Health Organization. “These Guidelines help countries move beyond fragmented projects to government-led systems that make soap, water, and conditions conducive to everyday hand hygiene the norm.”
“Children and young people pay the highest price when basic hygiene is out of reach,” said Cecilia Scharp, Director, Water Sanitation and Hygiene (WASH) Team, Programme Group, UNICEF. “These Guidelines provide practical steps to ensure facilities are accessible when they need to be – in homes, schools, markets, and transport hubs – so every child can learn, play and thrive with dignity.”
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This document, with a focus on the built environment and health care facilities, intends to guide the audience in preparing for and responding to SARI pandemics caused by existing and novel pathogens. It provides technical guidance on designing, establishing, and managing health care facilities for ...severe acute respiratory infections (SARI), covering point of entry, treatment centers, entry to health system facilities, quarantine and community facilities, and home care and quarantine.
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The WHO Global tuberculosis report 2025 provides a comprehensive and up-to-date assessment of the TB epidemic and of progress in prevention, diagnosis and treatment of the disease, at global, regional and country levels. This is done in the context of global TB commitments, strategies and targets.
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The 2025 edition of the report is, as usual, based primarily on data gathered by WHO from national ministries of health in annual rounds of data collection. In 2025, 184 countries and areas with more than 99% of the world’s population and TB cases reported data.
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