Community health workers (CHWs) are trusted, reliable sources of health information for millions of people worldwide. They play a vital role in promoting healthy behaviors, including global vaccination efforts during the COVID-19 pandemic and beyond. However, CHWs often lack adequate support to effe...ctively increase vaccine confidence.
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This practical document is available to support programmes and partners to design and implement risk communication strategies to achieve high uptake of malaria vaccination.
This practical document is available to support programmes and partners to design and implement risk communication strategies to achieve high uptake of malaria vaccination.
Le mémoire porte sur la conception et la mise en œuvre d’une campagne de communication pour promouvoir la chimio-prévention du paludisme saisonnier (CPS) chez les enfants de 3 à 59 mois au Cameroun, une stratégie recommandée par l’OMS dans les zones de forte transmission saisonnière. L’...auteure part du constat que, malgré l’introduction de la CPS dans certaines régions camerounaises, sa mise en œuvre reste confrontée à une faible appropriation communautaire, à des résistances sociales et à un manque de communication adaptée.
L’objectif du travail est de concevoir une stratégie de communication sociale et comportementale visant à renforcer l’adhésion des communautés à cette intervention. Le mémoire s’appuie sur une analyse situationnelle approfondie, intégrant des données épidémiologiques, socioculturelles et communicationnelles. Il propose ensuite une campagne ciblée, articulée autour de messages clairs, de canaux adaptés (radios communautaires, agents de santé, leaders locaux) et de supports visuels compréhensibles.
La campagne vise à sensibiliser les parents, en particulier les mères, sur les avantages de la CPS, à corriger les fausses croyances, à encourager l’observance du traitement, et à renforcer la confiance envers les agents communautaires. Le document inclut un plan opérationnel, des outils de suivi-évaluation et une stratégie de pérennisation.
En conclusion, le mémoire souligne l’importance d’une communication contextualisée et participative pour améliorer la couverture et l’efficacité de la chimio-prévention du paludisme chez les enfants au Cameroun.
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Infórmate sobre las vacunas que más se suelen recomendar
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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Les cartes de référence sur la communication
interpersonnelle pour la vaccination ont été créées
pour faciliter l’accès à l’information sur les vaccins et
les maladies évitables par la vaccination. Ces cartes
peuvent servir d’outils d’auto-apprentissage, de guides
pour les conv...ersations avec les personnes qui s’occupent
d’un enfant et les membres de la communauté, ou de
ressources d’information pour l’éducation et la formation.
Accessed on 20/06/2025.
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This UNHCR guidance note provides comprehensive recommendations for the prevention and control of malaria in refugee settings worldwide. Aligned with the WHO Global Technical Strategy for Malaria, it outlines strategies to ensure access to effective prevention, diagnosis and treatment, implement sus...tainable transmission reduction measures and strengthen surveillance systems. The document is intended as a practical resource for humanitarian actors, public health officials and partners involved in planning and implementing malaria programmes in refugee operations, with the aim of reducing malaria-related morbidity and mortality among vulnerable populations.
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Preguntas sobre las vacunas
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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WHO supports Zambia in vaccinating 1 million people in Lusaka against cholera to combat an outbreak that began in October 2017, causing 2,672 cases and 63 deaths. Two million vaccine doses were provided by Gavi. WHO and the Zambia National Public Health Institute are improving water access, sanitati...on, and hygiene education while training medical staff. Another 1 million people in high-risk areas will be vaccinated later.
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The document presents Cameroon's National Response Plan for the 2018 cholera outbreak, covering August to October 2018. It highlights the epidemiological situation, with outbreaks reported in the North and Central regions and a total of 109 suspected cases and 9 deaths by July 2018. The plan outline...s strategies for controlling the epidemic, including epidemiological surveillance, improved access to clean water, sanitation, mass vaccination, community awareness campaigns, and hospital and community-based treatment.
The response is coordinated by the Ministry of Public Health, WHO, and various partners, focusing on early detection, rapid response, and multi-sectoral collaboration. Challenges include poor sanitation, limited healthcare infrastructure, and cross-border disease transmission risks. The plan emphasizes resource mobilization, monitoring, and evaluation to contain the outbreak and prevent future cases.
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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 WHO Cholera Vaccine Position Paper (August 2017) highlights the importance of oral cholera vaccines (OCVs) as a key tool in outbreak response and prevention, alongside water, sanitation, and hygiene (WASH) measures. It recommends OCVs for high-risk populations, endemic areas, and humanitarian cr...ises, emphasizing their effectiveness in reducing cases and mortality. The paper discusses two types of OCVs (Dukoral®, Shanchol™, Euvichol®) and supports the WHO-managed vaccine stockpile for rapid deployment in cholera-prone regions.
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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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Lancet Glob Health 2016; 4: e856–63. Open Access
The article "Effectiveness of one dose of oral cholera vaccine in response to an outbreak: a case-cohort study" investigates whether a single dose of the Shanchol oral cholera vaccine can provide effective protection during an outbreak. Conducted i...n Juba, South Sudan, in 2015, the study involved a case-cohort approach, analyzing vaccination status and disease outcomes.
Findings showed that a single dose was 80.2% effective in preventing medically attended cholera cases, increasing to 87.3% after adjustments for confounding factors. These results suggest that a single-dose strategy can be an effective emergency response, particularly in settings with limited vaccine supply and high mobility of affected populations. The study supports using a single-dose approach during outbreaks when a two-dose regimen is logistically challenging.
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The technical note from the Global Task Force on Cholera Control (GTFCC) examines the risks and benefits of vaccinating pregnant women with WHO-prequalified oral cholera vaccines (OCVs) during mass vaccination campaigns. It highlights that three WHO-approved vaccines (Dukoral®, Shanchol™, and Euv...ichol®) offer sustained protection and a strong safety profile.
While these vaccines are not explicitly contraindicated for pregnant women, there is limited clinical data on their use during pregnancy. However, studies indicate that pregnant women with cholera face higher risks of fetal loss, stillbirth, and complications, especially if they experience severe dehydration. Some evidence suggests that vaccination can reduce cholera incidence in pregnant women and indirectly protect infants.
Although no controlled trials have focused on pregnant women, retrospective studies in Guinea and Zanzibar showed no significant increase in adverse pregnancy outcomes after OCV administration. The GTFCC concludes that the benefits of vaccination outweigh the risks, particularly in high-risk areas, and recommends including pregnant women in cholera vaccination campaigns while continuing to monitor safety data.
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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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