The study on single-dose cholera vaccine in Zambia evaluates the effectiveness of using a single dose of the oral cholera vaccine (OCV) during a 2016 outbreak in Lusaka. Due to limited vaccine supply, authorities opted for a one-dose emergency campaign instead of the usual two-dose regimen. A matche...d case-control study was conducted to assess vaccine effectiveness, showing 88.9% short-term protection against cholera. The findings suggest that a single-dose approach can be an effective strategy in outbreak settings, especially when vaccine supplies are constrained. However, further research is needed to determine long-term immunity and effectiveness in young children.
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The technical note by the Global Task Force on Cholera Control (GTFCC) discusses the use of Oral Cholera Vaccines (OCVs) for international workers and travelers in cholera-affected areas. It reviews the effectiveness of WHO-prequalified vaccines (Dukoral®, Shanchol™, and Euvichol®), emphasizing ...their role in preventing infection and reducing transmission risks.
The document highlights concerns about travelers contracting cholera in endemic regions and potentially spreading the disease upon returning home. While the overall risk is considered low, certain groups, such as humanitarian workers and travelers to high-risk areas like South Asia, face a higher exposure.
Recommendations include vaccination for emergency and relief workers who may come into direct contact with cholera patients or contaminated environments. However, routine vaccination for general travelers is not widely recommended. The note also calls for better surveillance and studies to assess the potential of vaccines in preventing international transmission.
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Due to the heterogeneous distribution of malaria transmission and its determinants, subnational tailoring (SNT) provides an analytical framework to facilitate the targeting of each population with appropriate intervention packages for maximum impact to inform national strategic planning and prioriti...zation based on resources available. The WHO Global Malaria Programme recommends the use of subnational data on disease epidemiology and other relevant local contextual factors to facilitate the process of SNT. Once the strategies and intervention mixes have been defined, programmes can proceed to the prioritization of
interventions for effective programming, based on available resources
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The Cholera Q&A Fact Sheet provides essential information about cholera, including its causes, symptoms, treatment, and prevention. Cholera is an acute diarrheal disease caused by Vibrio cholerae, which spreads through contaminated water and food. It leads to rapid dehydration and can be fatal if un...treated. Symptoms range from mild diarrhea to severe dehydration, shock, and death.
Treatment primarily involves Oral Rehydration Therapy (ORT) to replace lost fluids, and in severe cases, intravenous fluids. Antibiotics are generally not recommended for mass treatment. Prevention focuses on safe drinking water, sanitation, hand hygiene, and proper food handling.
The document also discusses cholera vaccination, with three WHO-approved oral vaccines available. However, vaccines should be used alongside other control measures. The Global Task Force on Cholera Control (GTFCC) aims to eliminate cholera transmission in 20 countries by 2030 through improved sanitation, vaccination, and rapid outbreak response.
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The Government of Malawi’s Health Sector Strategic Plan II highlights the importance of service integration; however, in practice, this has not been fully realized. We conducted a mixed methods evaluation of efforts to systematically implement integrated family planning and immunization services i...n all health facilities and associated community sites in Ntchisi and Dowa districts during June 2016–September 2017. Methods included secondary analysis of service statistics (pre- and postintervention), focus group discussions with mothers and fathers of children under age one, and in-depth interviews with service providers, supervisors, and managers. Results indicate statistically significant increases in family planning users and shifts in use of family planning services from health facilities to community sites. The intervention had no effect on immunization doses administered or dropout rates. According to mothers and fathers, benefits of service integration included time savings, convenience, and improved understanding of services. Provision and use of integrated services were affected by availability of human resources and commodities, community linkages, data collection procedures and availability, sociocultural barriers, organization of services, and supervision and commitment of health surveillance assistants. The integration approach was perceived to be feasible and beneficial by clients and providers.
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This document summarizes Haiti's cholera situation as of November 16, 2016. Between January and October 2016, Haiti reported 35,203 new suspected cholera cases (32% increase from 2015) and 369 deaths (56% increase). After Hurricane Matthew, cases rose dramatically, with 52% of new cases concentrated... in Grand'Anse and South departments. Since the 2010 outbreak began, Haiti had experienced 797,000 total cases and 9,353 deaths. The report identifies key factors contributing to cholera persistence: weak water and sanitation infrastructure, limited healthcare access, underfunding, population density, and mobility. Despite concerning trends, humanitarian partners were cautiously optimistic as a feared nationwide outbreak following Hurricane Matthew had not materialized, and a vaccination campaign was underway. However, the cholera response was significantly underfunded, with only 42% of requested funds received.
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This article describes WHO's efforts to combat a cholera outbreak in South Sudan in July 2017. The organization received 500,000 doses of oral cholera vaccine (OCV) and was working with South Sudan's Ministry of Health to launch a vaccination campaign from July 28 to August 3, 2017. At the time, the... country had reported 17,785 cholera cases and 320 deaths since the outbreak began in June 2016. The vaccination campaign targeted four counties with high transmission rates: Tonj East, Kapoeta South, Kapoeta North, and Kapoeta East. South Sudan was implementing an integrated approach to control cholera, combining patient care, surveillance, social mobilization, water and sanitation improvements, and vaccination. The article notes that approximately 6 million people in South Sudan were facing starvation, with food insecurity and drought exacerbating the risk of cholera spread as people resorted to using contaminated water sources.
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The "National Guideline for Cholera Surveillance and Outbreak Response" by the Ethiopian Public Health Institute (EPHI) provides a comprehensive approach to combating cholera outbreaks in Ethiopia. It emphasizes the importance of a multisectoral approach, including case management, WASH measures, an...d the use of cholera vaccines. A key component is the establishment of Cholera Treatment Centers (CTCs) that provide 24/7 care. Additionally, the guideline stresses water quality monitoring and hygiene practices to prevent the spread of cholera and protect public health.
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The CDC's "About Cholera" webpage provides essential information on cholera, an intestinal infection caused by the bacterium Vibrio cholerae. It highlights that cholera is primarily spread through contaminated water and food, leading to severe diarrhea, dehydration, and potentially death if untreate...d. Individuals in areas with unsafe drinking water, poor sanitation, and inadequate hygiene are at the highest risk. The page emphasizes the importance of early and proper treatment, such as rehydration therapy, to improve survival rates. Preventative measures include using treated water, practicing good hygiene, and vaccination, especially for travelers to regions where cholera is prevalent.
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El documento proporciona información básica sobre la malaria (paludismo), una enfermedad grave causada por un parásito que se transmite a través de la picadura de ciertos mosquitos, describe sus síntomas principales, cómo se diagnostica y trata, y ofrece recomendaciones de prevención, especia...lmente para quienes viajan a zonas donde la enfermedad es común.
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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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Le site web de l'OMS intitulé « Paludisme » offre un aperçu complet du paludisme, une maladie potentiellement mortelle causée par des parasites du genre Plasmodium et transmise principalement par des piqûres de moustiques dans les pays tropicaux. Il fournit des informations sur les symptômes,... les groupes à risque, les mesures de prévention et les options de traitement. Le site présente également des statistiques récentes : en 2023, on estime à 263 millions le nombre de cas de paludisme et à 597 000 le nombre de décès dans 83 pays, la région africaine étant la plus touchée avec 94 % des cas et 95 % des décès. Les enfants de moins de cinq ans représentaient environ 76 % des décès dans cette région.
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The WHO website titled "Malaria" provides a comprehensive overview of malaria, a potentially fatal disease caused by Plasmodium parasites and primarily transmitted through mosquito bites in tropical countries. It offers information on symptoms, at-risk groups, preventive measures, and treatment opti...ons. The site also presents recent statistics: in 2023, an estimated 263 million malaria cases and 597,000 deaths occurred in 83 countries, with the African region being the most affected—accounting for 94% of cases and 95% of deaths. Children under the age of five made up approximately 76% of the deaths in this region.
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El sitio web de la OMS titulado "Malaria" ofrece una visión completa de la malaria, una enfermedad potencialmente mortal causada por parásitos del género Plasmodium y transmitida principalmente por picaduras de mosquitos en países tropicales. Proporciona información sobre los síntomas, los gru...pos de riesgo, las medidas de prevención y las opciones de tratamiento. El sitio también presenta estadísticas recientes: en 2023, se estimaron 263 millones de casos de malaria y 597,000 muertes en 83 países, siendo la región africana la más afectada, con el 94 % de los casos y el 95 % de las muertes. Los niños menores de cinco años representaron aproximadamente el 76 % de las muertes en esta región.
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The WHO website titled "Malaria" provides a comprehensive overview of malaria, a potentially fatal disease caused by Plasmodium parasites and primarily transmitted through mosquito bites in tropical countries. It offers information on symptoms, at-risk groups, preventive measures, and treatment opti...ons. The site also presents recent statistics: in 2023, an estimated 263 million malaria cases and 597,000 deaths occurred in 83 countries, with the African region being the most affected—accounting for 94% of cases and 95% of deaths. Children under the age of five made up approximately 76% of the deaths in this region.
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World Health Organization. Regional Office for South-East Asia
Practical guidance on immunization services and the risks they present for both Ebola affected and non-affected countries. The specific purpose of this document is to assist countries to:
- Maintain immunization services and use immunization contacts and surveillance system as opportunities to ...educate and monitor for Ebola;
- Provide guidance on infection prevention and control during vaccination;
- Prepare where there is a potential risk of Ebola (e.g. border, etc.) and low immunization coverage, to implement activities to increase immunization coverage in these areas.
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The Global Vaccine Action Plan (GVAP) 2011-2020, endorsed by Member States during the May 2012 World Health Assembly, has set ambitious targets to improve access to immunization and tackle vaccine-preventable diseases. This responsibility has been translated into firm commitments in February 2016, t...hrough the signature of the Addis Declaration on Immunization (ADI) by African Ministers and subsequently endorsed by the Heads of States from across Africa at the 28th African Union Summit held in January 2017. This commitment from the highest level of government comes as a catalyst to immunization efforts on the continent to deliver on the promise of universal immunization
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30 March 2022. Infographic