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 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 healthier countries.
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UNAIDS/WHO Working group
HIV/AIDS and STI surveillance 2015 / Reference
The GTFCC Laboratory Support for Public Health Surveillance document provides guidelines on using DNA-based molecular techniques for identifying and monitoring Vibrio cholerae strains in cholera outbreaks. It highlights the importance of genetic sequencing for tracking transmission, detecting new va...riants, and improving outbreak response. The report explains methods like PCR testing, whole genome sequencing (WGS), and multiple loci VNTR analysis (MLVA), detailing their advantages and applications. It also outlines best practices for sample collection, storage, and transportation, emphasizing collaboration between national and international laboratories to enhance cholera surveillance and control efforts.
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This document aims to describe a minimum set of surveillance activities recommended at the national level to detect and monitor the relative prevalence of SARS-CoV-2 variants and outline a set of activities for the characterization and assessment of risk posed by these variants. A set of indicators ...is also provided to standardize monitoring and public reporting of variant circulation.
The document is primarily intended for national and sub-national public health authorities and partners who support implementation of surveillance for SARS-CoV-2 variants
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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 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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This document aims to describe a minimum set of surveillance activities recommended at the national level to detect and monitor the relative prevalence of SARS-CoV-2 variants and outline a set of activities for the characterization and assessment of risk posed by these variants. A set of indicators ...is also provided to standardize monitoring and public reporting of variant circulation.
The document is primarily intended for national and sub-national public health authorities and partners who support implementation of surveillance for SARS-CoV-2 variants
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The WHO Regional Office for Europe has established the Childhood Obesity Surveillance Initiative in more than half thecountries in the Region for routine monitoring of the policy response to the emerging obesity epidemic. The aim of the system is to measure trends in overweight and obesity in childr...en aged 6.0–9.9 years for accurate understanding of the epidemic and to allow inter-country comparisons. This document outlines the data collection procedures agreed for use in the Initiative.
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The WHO Eastern Mediterranean Region's Noncommunicable Diseases (NCD) Data and Statistics page offers comprehensive information on NCD surveillance, including mortality rates, morbidity, and risk factor exposures. It emphasizes the importance of monitoring NCD trends to inform prevention and control... strategies, aligning with global targets such as reducing premature NCD deaths by one-third by 2030. The page also highlights the WHO STEPwise approach to NCD risk factor surveillance, providing standardized methods for data collection and analysis.
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The WHO Eastern Mediterranean Region's Noncommunicable Diseases (NCD) Data and Statistics page offers comprehensive information on NCD surveillance, including mortality rates, morbidity, and risk factor exposures. It emphasizes the importance of monitoring NCD trends to inform prevention and control... strategies, aligning with global targets such as reducing premature NCD deaths by one-third by 2030. The page also highlights the WHO STEPwise approach to NCD risk factor surveillance, providing standardized methods for data collection and analysis.
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The WHO Regional Office for Europe has established the Childhood Obesity Surveillance Initiative in more than half the countries in the Region for routine monitoring of the policy response to the emerging obesity epidemic. The aim of the Initiative is to measure trends in overweight and obesity in c...hildren aged 6.0–9.9 years to get a clear understanding of the epidemic and to allow inter-country comparisons. This document outlines the common protocol agreed for use in the Initiative.
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The primary aim of this assessment is to evaluate current approaches to malaria surveillance in Myanmar and to provide a set of practical and feasible recommendations to further strengthen the surveillance system in the short to medium term. The assessment focuses on the surveillance of malaria case...s (as distinct from more general surveillance to support monitoring and evaluation) and, more specifically, on instruments and systems to collect, collate, report and analyse malaria data as a basis for informing malaria control policy and practice.
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Am. J. Trop. Med. Hyg., 106 (Suppl 5), 2022, pp. 56–60. Lymphatic filariasis (LF) is a parasitic disease that is a major cause of chronic disability in the developing world. According to the 2021–2030 road map for neglected tropical diseases (NTDs) published by the World Health Organization (WHO...), the global goal for LF is elimination as a public health problem by 2030 through repeated rounds of mass drug administration (MDA). Critical components of any elimination program are monitoring and surveillance. Appropriate assessment tools and methods are needed for each stage of an elimination program; mapping to identify which areas require intervention, monitoring to assess the impact of interventions, and post-intervention surveillance to validate elimination or detect recrudescence.
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2016-2018 Early implementation,
This report presents 2015 data on the consumption of systemic antibiotics from 65 countries and areas, contributing to our understanding of how antibiotics are used in these countries. In addition, the report documents early efforts of the World Health Organization (...WHO) and participating countries to monitor antimicrobial consumption, describes the WHO global methodology for data collection, and highlights the challenges and future steps in monitoring antimicrobial consumption.
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The ongoing COVID-19 pandemic presents an exceptional and unprecedented challenge for competent authoritiesa with responsibilities for national food safety control systemsb to continue conducting routine functions and activities in accordance with national regulations... and international recommendations. In many countries, competent authority staff are largely working from home, teleworking being the normal practice, and all face-to-face meetings cancelled or rescheduled as teleconferences. It is challenging to maintain, without interruption, routine activities such as the inspection of food business operations, certifying exports, control of imported foods, monitoring and surveillance of the safety of the food supply chain, sampling and analysis of food, managing food incidents, providing advice on food safety and food regulations for the food industry, and communicating on food safety issues with the public.
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Over 18 months into the pandemic, WHO continues to conductglobal surveillance of COVID-19as part of activities on preparedness, readiness and response activities. The need for global surveillance of COVID-19 is greater than ever, asthe implementation of vaccination campaigns and the appearance of va...riants are prone to impact the course of the epidemic, as transmission patterns evolve. Timely and complete surveillance data are key to monitoring these changes.
Features include stratification by age and sex, trends over time, case fatality ratios by age, testing, hospitalization, and data on health workers –all visible at country and regional levels. The dashboard provides the ability for users to conduct further analyses by country and selected time period.
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Hepatitis B (HBV) infection is a major public health problem and cause of chronic liver disease.
The 2024 HBV guidelines provide updated evidence-informed recommendations on key priority topics. These include expanded and simplified treatment criteria for adults but now also for adolescents; expa...nded eligibility for antiviral prophylaxis for pregnant women to prevent mother-to-child transmission of HBV; improving HBV diagnostics through use of point-of-care HBV DNA viral load and reflex approaches to HBV DNA testing; who to test and how to test for HDV infection; and approaches to promote delivery of high-quality HBV services, including strategies to promote adherence to long-term antiviral therapy and retention in care.
The 2024 guidelines include 11 updated chapters with new recommendations and also update existing chapters without new recommendations, such as those on treatment monitoring and surveillance for liver cancer.
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All malaria-endemic countries in the Region of the Americas have taken on the challenge to eliminate the disease and to put in place measures to orient their health programs and strategies in that direction. This manual explains how to implement measures to achieve malaria elimination and prevent it...s reestablishment by increasing the intensity and quality of interventions, reorienting initiatives, reducing delays that favor transmission, and ensuring adequate monitoring to adjust interventions. In this regard, the first suggested step is to stratify the territory - so that interventions and population groups can be planned and prioritized - and then implement diagnosis, treatment, investigation and response (DTI-R) actions as a key strategy aimed at effectively eliminating the disease and preventing its reestablishment in all strata. In addition, the document seeks to operationalize the concept of "surveillance as an intervention" promoted by the World Health Organization through the Global Technical Strategy for Malaria 2016-2030 and highlights the importance of communities having access to early diagnosis and treatment. Finally, the manual also includes management and monitoring aspects that must be taken into account to eliminate the foci with transmission.
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The Cholera Outbreak Guidelines: Preparedness, Prevention, and Control provide a practical field guide for responding to cholera outbreaks. Developed by Oxfam GB, the guidelines combine lessons from past cholera interventions and best practices for effective outbreak management. The document outline...s key strategies, including preparedness planning, rapid response to outbreaks, water and sanitation improvements, hygiene education, and coordination among stakeholders. It covers both non-endemic and endemic cholera outbreaks, offering step-by-step guidance on surveillance, intervention, and monitoring. The aim is to ensure community-based, gender-sensitive, and rapid public health responses to control cholera and minimize mortality.
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The ECDC webpage on malaria provides an overview of the disease, emphasizing that while malaria is mostly travel-related in the EU/EEA, it remains a serious global health threat. It outlines symptoms, affected populations, travel-associated risks, and highlights the importance of prevention, surveil...lance, and data monitoring.
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Noncommunicable diseases (NCDs) are responsible for 81% of all deaths in the region of the Americas, of which 34% befall prematurely in people between 30- 69 years old. The burden of theses diseases and their common risk factors jeopardize the health systems to provide adequate management, as well a...s to implement customized policies and interventions. The PAHO/WHO STEPwise approach to NCD risk factor surveillance (STEPS) is a simple, sequential, standardized method for collecting, analyzing, and disseminating data on key NCD risk factors in countries in adults from 18 to 69 years old. This survey covers key modifiable risk factors: tobacco use, alcohol use, physical inactivity, and unhealthy diet, as well as key biological risk factors: overweight and obesity, raised blood pressure, raised blood glucose, and abnormal blood lipids. STEPS is a household survey that gathers information on the risk factors through a face-to-face interview (step 1), simple physical measurements (step 2), and collection of urine and blood samples for biochemical analysis (step 3). Every step has a core set of questions, measurements, and expanded sets depending on the countries' needs and interests. It also has optional modules. Implementing STEPS allows the comparability of data within and between countries due to its standardized data collection. It also helps health services plan public health priorities and monitors and evaluates population-wide interventions. It is designed to help countries build and strengthen their capacity to conduct surveillance. STEPS captures 11 of the 25 indicators outlined in the NCD Global Monitoring Framework relating to 7 of the nine global targets.
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