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Yaws, a neglected tropical disease (NTD) of the skin caused by the bacterium Treponema pallidum subspecies pertenue, is targeted in the latest WHO NTD Roadmap for eradication by 2030. In January, 2022, WHO published a manual that outlines the key activities that Ministries of Health in endemic count
...
ries should undertake to achieve this goal. The aim of the manual is to provide guidance on surveillance and evaluation of yaws as programmes progress towards eradication. However, yaws eradication in Africa faces several challenges.
more
Antimicrobial resistance (AMR) is a global public health crisis that resulted in 1.14 million deaths in 2021. According to the Institute for Health Metrics and Evaluation estimates, 96 416 of these deaths occurred in the World Health Organizatio
...
n (WHO) Eastern Mediterranean Region. All 22 countries/territories in the Eastern Mediterranean Region are enrolled in the global AMR
surveillance system, and 17 countries/territories reported data in 2024 (for the year 2023). The total number of isolates reported to the system increased sixfold between 2017 and 2022, but the proportion of blood isolates is relatively very low. Most of the data come from public sector laboratories or hospitals, although the private sector has increased its participation in some countries/territories recently. Three pathogens account for three quarters of all the reported pathogens – Escherichia coli
(26%), Klebsiella pneumoniae (23%), and Staphylococcus aureus (22%).
more
Pillar 3 of the Global technical strategy for malaria 2016–2030 calls for the transformation of malaria surveillance into a core intervention in all malaria-endemic countries, as well as in countries which have eliminated malaria but remain suscep
...
tible to re-establishment of transmission. This reference manual covers subjects that are relevant to both settings.
The target readership of this manual includes staff working in ministries of health, national malaria programmes and health information systems; partners involved in malaria surveillance; and WHO technical officers who advise countries on malaria surveillance.
more
This Malaria Surveillance Assessment Toolkit implementation reference guide is a comprehensive reference document, as well as a step by-step guide. It aligns and adapts available tools into a single
...
set of standardized tools, which can be used to conduct malaria surveillance assessments across all transmission settings. Use of these standardized tools allows comparison of results between countries and within the same country over time, enabling countries to track their progress towards surveillance system strengthening.
more
The framework recommends expanded coverage of malaria diagnostic and treatment services, intensified vector control to drive down transmission, strengthened malaria surveillance,
...
and increased transborder collaboration, especially in terms of efforts to control the sale and use of artemisinin monotherapies. Since it is unlikely that national malaria control programs will be able to implement all the activities described in this framework simultaneously, a list of suggested priority activities has been included in the Annex.
more
Malaria remains a significant public health concern in the SADC region, accounting for 20% of childhood deaths, as well as prompting numerous outpatient visits and hospitalisations. Around three-quarters of the population, including 35 million child
...
ren under the age of five and 8.5 million pregnant women, are at risk. Transmission patterns vary from high and stable in the north to malaria-free in the south, with low, unstable and seasonal zones in between. Although interventions such as indoor residual spraying (IRS), insecticide-treated nets (ITNs/LLINs), intermittent preventive treatment in pregnancy (IPTp), rapid diagnostic tests (RDTs), and artemisinin-based combination therapies (ACTs) have reduced the malaria burden, challenges persist in terms of funding, human resources, surveillance, and cross-border coordination. Achieving malaria elimination in the SADC region requires harmonised regional standards, strengthened surveillance, and improved access to quality treatment and policy prioritisation.
Accessed on 27/08/2025.
more
The document provides a standardized protocol for evaluating the Early Warning Alert and Response Network (EWARN), a surveillance system used during humanitarian emergencies when regular national he
...
alth surveillance may be disrupted. The purpose of EWARN is to detect outbreaks of communicable diseases early and enable rapid public health response. The guidance explains how the system should be assessed in terms of its structure, implementation, effectiveness, and usefulness. It outlines the key steps of evaluation: preparation, system description, data collection, and post-evaluation reporting. The protocol highlights common challenges observed in previous EWARN implementations, such as delays in establishing the system, limited data quality, weak outbreak response, and lack of clear transition plans back to routine surveillance systems. It emphasizes the need to evaluate both weekly disease reporting and alert verification processes, and to review attributes such as simplicity, data quality, timeliness, sensitivity, and stability. The document also provides templates for interviews, data review forms, and laboratory assessment, as well as guidance on conducting remote evaluations when access is limited. The overall goal of the protocol is to ensure that EWARN functions effectively to detect and respond to outbreaks and that practical recommendations are developed to improve the system’s performance and sustainability in emergency settings.
more
Surveys are needed to guide trachoma control efforts in Mozambique, with WHO guidelines for intervention based on the prevalence of trachomatous inflammation–follicular (TF) in children aged 1–9 years and the prevalence of trichiasis in adults a
...
ged 15 years and above. We conducted surveys to complete the map of trachoma prevalence in Mozambique, concluding that it still represents a significant public health problem in many areas of Mozambique.
more
Effective response to an outbreak of COVID-19 requires detection in the very earliest stages of the outbreak when the number of cases is small, and the geographical extent of spread is limited. In order to achieve this, a sensitive
...
surveillance system capable of detecting small scale, unusual events is necessary.
more
The Mekong Malaria Elimination (MME) programme is an initiative aimed at supporting Greater Mekong Subregion (GMS) countries – Cambodia, Lao People's Democratic Republic, Myanmar, Thailand, Viet Nam, and Yunnan (China) – in achieving the goal of
...
malaria elimination by 2030. Data for this epidemiological summary were compiled from country reports. Between July and September 2024, 48 115 malaria cases were reported. During that period, GMS countries recorded 44% fewer cases, with P. falciparum + mixed and P. vivax cases declining by 81% and 36%, respectively. Meanwhile, testing declined by 25% when compared to the same period in 2023.
more
n light of the potential risk posed by SARS-CoV-2 variants, in January 2021 WHO organized an ad hoc consultation to discuss the development of an R&D agenda in response to existing and emerging SARS-CoV-2 variants.
The key objectives were to iden
...
tify the critical research questions related to variants and agree on a research approach to address them. Six breakout groups covered a range of specific issues related to COVID-19 variants: Epidemiology and mathematical modelling; evolutionary biology; animal models; assays and diagnostics; clinical management and therapeutics; and vaccines.
This report is a summary of presentations and panel discussions.
more
The Infection prevention and control in the context of coronavirus disease 2019 (COVID-19): a living guideline consolidates technical guidance developed and published during the COVID-19 pandemic in
...
to evidence-informed recommendations for infection prevention and control (IPC). This living guideline is available both online and PDF.
**This version of the living guideline (version 5.0) **includes the following seven revised statements for the prevention, identification and management of SARS-CoV-2 infections among health and care workers:
a good practice statement on national and subnational testing strategies;
a good practice statement on passive syndromic surveillance of health and care workers;
a good practice statement on prioritizing health and care workers for SARS-CoV-2 testing;
a good practice statement on protocols for reporting and managing health and care worker exposures;
a good practice statement to limit in-person work of health and care workers with active SARS-CoV-2 infections;
a statement on high-risk exposures and quarantine; and,
a conditional recommendation on the duration of isolation for health and care workers.
Understanding the updated section
Prevention of infections in the health care setting includes a multi-pronged and multi-factorial approach that includes IPC and occupational health and safety measures and adherence to Public Health and Social Measures in the community by the health workforce. The underlying infection prevention and control strategy of this section is the notion that early identification of symptomatic cases, testing and quarantining/isolating health and care workers decreases the risk of nosocomial infection to patients and to other health and care workers.
more
The second ECDC/EFSA/EMA joint report on the integrated analysis of antimicrobial consumption (AMC) and antimicrobial resistance (AMR) in bacteria from humans and food-producing animals addressed da
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ta obtained by the Agencies’ EU-wide surveillance networks for 2013–2015. AMC in both sectors, expressed in mg/kg of estimated biomass, were compared at country and European level. Substantial variations between countries were observed in both sectors. Estimated data on AMC for pigs and poultry were used for the first time. Univariate and multivariate analyses were applied to study associations between AMC and AMR. In 2014, the average AMC was higher in animals (152 mg/kg) than in humans (124 mg/kg), but the opposite applied to the median AMC (67 and 118 mg/kg, respectively). In 18 of 28 countries, AMC was lower in animals than in humans. Univariate analysis showed statistically-significant (p < 0.05) associations between AMC and AMR for fluoroquinolones and Escherichia coli in both sectors, for 3rd- and 4th-generation cephalosporins and E. coli in humans, and tetracyclines and polymyxins and E. coli in animals. In humans, there was a statistically-significant association between AMC and AMR for carbapenems and polymyxins in Klebsiella pneumoniae. Consumption of macrolides in animals was significantly associated with macrolide resistance in Campylobacter coli in animals and humans. Multivariate analyses provided a unique approach to assess the contributions of AMC in humans and animals and AMR in bacteria from animals to AMR in bacteria from humans. Multivariate analyses demonstrated that 3rd- and 4th-generation cephalosporin and fluoroquinolone resistance in E. coli from humans was associated with corresponding AMC in humans, whereas resistance to fluoroquinolones in Salmonella spp. and Campylobacter spp. from humans was related to consumption of fluoroquinolones in animals. These results suggest that from a ‘One-health’ perspective, there is potential in both sectors to further develop prudent use of antimicrobials and thereby reduce AMR.
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Event-based surveillance (EBS) is defined as the organized collection, monitoring, assessment and interpretation of mainly unstructured ad hoc information regarding health events or risks, which may
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represent an acute risk to health. Both indicator-based and event-based surveillance components serve the early warning and response (EWAR) function of the public health surveillance system. The Framework for Event-based Surveillance offers guidance to public health practitioners seeking to implement EBS at each administrative level in their countries.
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Trachoma is the leading infectious cause of blindness worldwide. In April 2023, it was a public health problem
in approximately 40 countries, with an estimated 116 million people at risk and 1.5 million people affected
by the late blinding stage o
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f the disease (1). About 84% of those at risk of trachoma are in the World Health
Organization (WHO)’s African Region; about 52% of those at risk of trachoma live in Ethiopia
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Discrete typing units of Trypanosoma cruzi: Geographical and biological distribution in the Americas
Chagas disease caused by Trypanosoma cruzi is a public health issue in Latin America. This highly diverse parasite is divided into at least seven discrete typing units (DTUs) TcI-TcVI and Tcbat. Some DTUs have been associated with geographical distr
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ibution in epidemiological scenarios and clinical manifestations, but these aspects remain poorly understood. Many studies have focused on studying the parasite and its vectors/hosts, using a wide variety of genetic markers and methods. Here, we performed a systematic review of the literature for the last 20 years to present an update of DTUs distribution in the Americas, collecting ecoepidemiological information. We found that the DTUs are widespread across the continent and that there is a whole gamma of genetic markers used for the identification and genotyping of the parasite. The data obtained in this descriptor could improve the molecular epidemiology studies of Chagas disease in endemic regions.
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This document aims to provide global guidance on poliomyelitis (polio) surveillance in the context of the COVID-19 pandemic. It comes as a technical complement to Polio eradication programme continuity, Immunization in the context of COVID-19 pandem
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ic frequently asked questions, and is aligned with the Global Polio Eradication Initiative (GPEI) commitment to support the COVID-19 pandemic response.
It highlights the decision making framework to guide the level of polio surveillance activities at country level including; the measures to put in place to ensure a minimum level of polio surveillance in the field and in the laboratory, and the trigger to return to normal polio function.
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Improvements in water sanitation and hygiene (WASH) and wastewater management in all sectors are critical elements of preventing infections and red
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ucing the spread of antimicrobial resistance (AMR) as identified in the Global Action Plan to combat AMR. Yet, at present, WASH and wastewater management actors and improvement actions are under-represented in AMR multi-stakeholder platforms and national action plans (NAPs). This WHO/FAO/OIE technical brief on WASH and wastewater management to reduce the spread of AMR provides a summary of evidence and rationale for WASH and wastewater actions within AMR NAPs and sector specific policy to combat AMR. Evidence and actions are presented in the domains of; coordination and leadership, households and communities, health care facilities, animal and plant production, manufacturing of antimicrobials, and surveillance and research.
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Technical report
This manual aims to provide information about the methods for investigating outbreaks of hepatitis E, and measures for their prevention and control. In addition, the manual giv ... es information about the causative agent – known as the hepatitis E virus (HEV) – its epidemiology, clinical manifestations of the disease and diagnosis. more
This manual aims to provide information about the methods for investigating outbreaks of hepatitis E, and measures for their prevention and control. In addition, the manual giv ... es information about the causative agent – known as the hepatitis E virus (HEV) – its epidemiology, clinical manifestations of the disease and diagnosis. more
The report focuses on antibacterial resistance (ABR) in common bacterial pathogens. There is a major gap in knowledge about the magnitude of this problem. Antimicrobial resistance (AMR) threatens the effective revention and treatment of an ever-incr
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easing range of infections caused by bacteria, parasites, viruses and fungi. This WHO report, produced in collaboration with Member States and other partners, provides for the first time, as accurate a picture as is presently possible of the magnitude of AMR and the current state of surveillance globally. It examines the information on AMR, in particular antibacterial resistance (ABR), at country level worldwide.
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