Early warning systems for disease outbreaks are surveillance systems that collect information on a selected list of epidemic-prone diseases in order to trigger prompt public health interventions. They function in humanitarian emergency situations when the routine public health surveillance systems o...f a country are underperforming, disrupted or non-existent. Early warning systems are often set up to fill such temporary gaps, while the routine systems recover from the effects of the disaster or a crisis. During humanitarian emergencies, detecting and responding swiftly to epidemics is key in order to reduce unecessary illness and death, especially among refugees and displaced people.
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RBC/IHDPC/ EID Division | November2011 - The aim of the standard operating procedures is to guide health care providers and public health
experts from various levels of the health system in the implementation of enhanced surveillance of meningococcal meningitis.
A GUIDE FOR HEALTH WORKERS AND AUTHORITIES IN NIGERIA
3rd edition. In 2001, Uganda adapted the Integrated Disease Surveillance and Response (IDSR) developed by World Health Organization (WHO) for member states in African region. The Ministry of Health has been implementing the IDSR strategy since then with success across the country. This strategy prov...ides the opportunity for rational use of resources and maximises investments in health surveillance systems. The 3rd edition IDSR guidelines incorporates lessons learnt from previous
epidemics, new frameworks like the Global Health Security Agenda (GHSA), One Health, Disaster Risk Management (DRM), the WHO regional strategy for health security and emergencies, and the rising non-communicable diseases, and aims to strengthen implementation of IHR (2005) core surveillance and response capacities. These guidelines have been adapted to reflect national priorities, policies and public health structures; and shall be used in conjunction with other similar
guidelines/strategies or initiatives.
Overall, the 3rd edition technical guidelines will incorporate the following:
• Strengthening Indicator Based Surveillance
• Strengthening Event Based Surveillance
• Improving community-based disease surveillance
• Improving Cross Border Surveillance and response
• Scaling up e-IDSR implementation
• Improving reporting and information sharing platforms
• Improved data sharing across sectors
• Tailoring IDSR to Emergency or Disaster contexts
The 3rd edition guidelines are intended for use as:
• A general reference for surveillance activities across all levels
• A set of definitions for thresholds that trigger some action for response
• A stand-alone reference for level-specific guidelines on surveillance and response
• A resource for developing training, supervision and evaluation of surveillance activities
• A guide for improving early detection and preparedness for outbreak response.
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WHO Guideline. Since 2010, countries in the meningitis belt have started to introduce a new serogroup A meningococcal conjugate vaccine conferring individual protection and herd immunity. Following the successful roll-out of this vaccine, epidemics due to Neisseria meningitidis serogroup A (NmA) are... disappearing, but other serogroups (e.g. NmW, NmX and NmC) still cause epidemics, albeit at a lower frequency and of a smaller size. Due to these changes, WHO organized the review of the evidence to provide recommendations for epidemic control, related to operational thresholds for investigation and response to outbreaks, the use of rapid diagnostic tests, antibiotic regimens in epidemics, and prophylaxis for household contacts of cases
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Report of a WHO technical consultation meeting
Ouagadougou, Burkina Faso
Responses to epidemics, emergencies and disasters raise many ethical issues for the people involved, including public health specialists and policy makers. This training manual provides material on ethical issues in research, surveillance and patient care in these difficult contexts.
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 health surveillance may be disrupted. The purpose of EWARN is to detect outbreaks of communicable diseas...es 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.
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Epidemic meningitis is a major public health challenge in the African 'meningitis belt', an area that extends from Senegal to Ethiopia with an estimated total population of 500 million. Since 2002, the World Health Organization (WHO), in collaboration with its collaborating centres for meningitis, h...as progressively supported countries in implementing a strategy of ES for meningitis. The strategy is the recommended standard for all countries of the Belt and it is now actively being implemented at different levels in all countries.
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The WHO handbook “Epidemiological Data Analysis for the Early Warning Alert and Response Network (EWARN) in Humanitarian Emergencies” explains how to collect, analyse, interpret, and share health data during crises such as conflicts or natural disasters. It is a practical guide for health and su...rveillance officers to detect disease outbreaks early and guide quick public health responses. The document outlines steps for managing data at different levels (local, regional, national), analysing disease trends by time, place, and person, and using indicators to monitor outbreak risks. It also provides methods for interpreting and communicating results clearly to decision-makers to support effective health interventions in emergencies.
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It is impossible to address the many complex needs of respiratory virus surveillance with a single surveillance system. Multiple systems, investigations and studies must each be fit-for-purpose to specific priority surveillance objectives, and only together can they provide essential information to ...policy-makers. In essence, each surveillance approach fit together as “tiles in a mosaic” that provides a complete picture of respiratory viruses and the impact of associated illnesses and interventions at the country level. This mosaic framework demonstrates how surveillance approaches may be implemented as coordinated and collaborative systems, well-matched to specific priority objectives.
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The 2014–2015 Ebola epidemic in western Africa was the longest and most deadly Ebola epidemic in history, resulting in 28,616 cases and 11,310 deaths in Guinea, Liberia, and Sierra Leone. The Ebola virus has been known since 1976, when two separate outbreaks were identified in the Democratic Repub...lic of Congo (then Zaire) and South Sudan (then Sudan). However, because all Ebola outbreaks prior to that in West Africa in 2014–2015 were relatively isolated and of short duration, little was known about how to best manage patients to improve survival, and there were no approved therapeutics or vaccines. When the World Heath Organization declared the 2014-2015 epidemic a public health emergency of international concern in August 2014, several teams began conducting formal clinical trials in the Ebola affected countries during the outbreak.
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BMC Health Services Research BMC series – open, inclusive and trusted201818:251; https://doi.org/10.1186/s12913-018-3072-3
At the threshold of Sustainable Development Goals (SDG) era, this document captures the remarkable achievements by Member States towards achieving MDGs 4 and 5. It acknowledges new opportunities in the post-2015 phase shaped by the SDGs and the Global Strategy for women’s, children’s and adoles...cents’ health and presents an advanced state of preparedness in the Region. This also highlights the region’s renewed commitment for a more inclusive and more dynamic flagship action for ending preventable maternal, newborn and child mortality as well as to improve women’s, children’s and adolescents’ health and wellbeing in the South-East Asia Region.
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A quick reference guide for health authorities and health-care workers
Revised 2015
The Department of Health (DOH) today requested the National Disaster Risk Reduction and Management Council Chair Secretary Delfin N. Lorenzana to convene a full council meeting and declared a national dengue epidemic in the wake of the 146,062 cases recorded since January up to July 20 this year, 98...% higher than the same period in 2018. There were 622 deaths.
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The EYE strategy is a comprehensive and long-term strategy built on lessons learned that aims at ending yellow fever epidemics by 2026, and consists of three strategic objectives:
protect at-risk populations;
prevent international spread; and
contain outbreaks rapidly.