CharlesShey Wiysonge (@charlesshey) 's Twitter Profile
CharlesShey Wiysonge

@charlesshey

Regional Adviser for Immunisation @WHOAFRO. All views expressed here are mine. #VaccineAcceptance #VaccinesWork #EndingDiseasesInAfrica

ID: 1947077328

calendar_today08-10-2013 14:47:13

2,2K Tweet

956 Followers

1,1K Following

CharlesShey Wiysonge (@charlesshey) 's Twitter Profile Photo

50 years of immunisation in Africa @BMJGH article reflects on big wins & unfinished business Unequal access Vaccine hesitancy Urgent need for innovation & investment Let’s #ImmunizeEveryChild Read more gh.bmj.com/content/10/5/e… #IA2030 #VaccinesWork #Africa #UHC #HealthEquity

CharlesShey Wiysonge (@charlesshey) 's Twitter Profile Photo

Africa’s future in global health depends on research rooted in local realities & led by African scientists. In a recent PAMJ supplement, we reflect on 50 years of immunisation progress, and what must come next. #GlobalHealth #vaccineswork panafrican-med-journal.com/content/series…

CharlesShey Wiysonge (@charlesshey) 's Twitter Profile Photo

We don’t just need new health interventions, we need better implementation of what already works In Africa, embedding #ImplementationScience in immunisation & health systems is a game-changer Our latest piece in PAMJ lays out how #vaccineswork panafrican-med-journal.com/content/series…

CharlesShey Wiysonge (@charlesshey) 's Twitter Profile Photo

Peer learning is a powerful but underused tool to tackle immunisation inequities and boost resilience. We propose a cross-context model for knowledge exchange to accelerate progress toward #IA2030. #VaccinesWork #PeerLearning #ImplementationScience thelancet.com/journals/lance…

CharlesShey Wiysonge (@charlesshey) 's Twitter Profile Photo

To reach #IA2030 goals, we must track not just what is achieved, but how. Measuring implementation outcomes (e.g. fidelity, adoption, cost, sustainment) is key to fixing what’s not working. #VaccinesWork #ImplementationScience #ImplementationResearch thelancet.com/journals/lance…

WHO African Region (@whoafro) 's Twitter Profile Photo

The #RITAG2025 and Immunization Stakeholders’ Meeting is underway today in Kintélé 🇨🇬. WHO African Region, governments and partners are aligning strategies to strengthen immunization systems, track progress on #IA2030, and protect every community. #VaccinesWork

The #RITAG2025 and Immunization Stakeholders’ Meeting is underway today in Kintélé 🇨🇬.

<a href="/WHOAFRO/">WHO African Region</a>, governments and partners are aligning strategies to strengthen immunization systems, track progress on #IA2030, and protect every community.

#VaccinesWork
OMS Afrique (@oms_afrique) 's Twitter Profile Photo

La réunion du Groupe technique consultatif régional sur la vaccination et des parties prenantes à la vaccination s'est ouverte aujourd'hui à #Kintélé 🇨🇬. L'OMS Afrique, les gouvernements et les partenaires alignent leurs stratégies pour renforcer les systèmes de vaccination,

La réunion du Groupe technique consultatif régional sur la vaccination et des parties prenantes à la vaccination s'est ouverte aujourd'hui à #Kintélé 🇨🇬.

L'<a href="/OMS_Afrique/">OMS Afrique</a>, les gouvernements et les partenaires alignent leurs stratégies pour renforcer les systèmes de vaccination,
Chikwe Ihekweazu (@chikwe_i) 's Twitter Profile Photo

A warm welcome to Brazzaville 🇨🇬, my brother Prof. Mohamed Janabi, as you prepare to officially assume your role as WHO African Region Regional Director. The region welcomes your leadership at this critical time for health in Africa.

A warm welcome to Brazzaville 🇨🇬, my brother <a href="/ProfJanabi/">Prof. Mohamed Janabi</a>, as you prepare to officially assume your role as <a href="/WHOAFRO/">WHO African Region</a> Regional Director.

The region welcomes your leadership at this critical time for health in Africa.
WHO African Region (@whoafro) 's Twitter Profile Photo

Vaccines are protection, hope, and a promise for the future. WHO African Region’s Prof. CharlesShey Wiysonge calls for renewed action to strengthen immunization and protect every child. #VaccinesWork #RITAG2025

WHO African Region (@whoafro) 's Twitter Profile Photo

The #RITAG2025 and Regional Immunization Stakeholders’ Meeting has concluded. Thank you to all partners driving bold action, local innovation and strong collaboration. Your commitment is bringing Africa closer to universal immunization access and vaccine self-reliance.

The #RITAG2025 and Regional Immunization Stakeholders’ Meeting has concluded.

Thank you to all partners driving bold action, local innovation and strong collaboration.

Your commitment is bringing Africa closer to universal immunization access and vaccine self-reliance.
CharlesShey Wiysonge (@charlesshey) 's Twitter Profile Photo

50 years of immunisation in Africa: - More than 50M lives saved, 3B+ #DALYs averted - We reflect, celebrate, and chart a bold path beyond 2030. #VaccinesWork #IA2030 #GlobalHealth #Africa panafrican-med-journal.com/content/series…

50 years of immunisation in Africa:
- More than 50M lives saved, 3B+ #DALYs averted
- We reflect, celebrate, and chart a bold path beyond 2030.

#VaccinesWork #IA2030 #GlobalHealth #Africa 

panafrican-med-journal.com/content/series…
Chikwe Ihekweazu (@chikwe_i) 's Twitter Profile Photo

After 5 months as WHO African Region Acting Regional Director, it has been an honour to serve this incredible region. As I prepare to hand over tomorrow to Prof. Mohamed Janabi, I am deeply proud of our work and will continue to support AFRO’s mission. I remain grateful to serve & #ProudToBeWHO

OMS Afrique (@oms_afrique) 's Twitter Profile Photo

Les vaccins représentent une protection, un espoir et une promesse pour l'avenir. Le Dr CharlesShey Wiysonge de l'OMS Afrique appelle à une action renforcée pour maintenir les acquis de la vaccination et protéger chaque enfant. #LesVaccinsSontEfficaces #RITAG2025

CharlesShey Wiysonge (@charlesshey) 's Twitter Profile Photo

Measles still kills thousands of children in Africa each year, despite an effective vaccine. Can implementation research close the gap between innovation and impact? Read our commentary at panafrican-med-journal.com/content/series… #VaccinesWork #Measles #GlobalHealth

CharlesShey Wiysonge (@charlesshey) 's Twitter Profile Photo

Vaccines vs AMR? Absolutely Pneumococcal conjugate vaccines (PCVs) in South Africa cut drug-resistant infections by up to 96% panafrican-med-journal.com/content/series… PCVs = disease prevention + AMR control = high-impact investment Let’s rethink how we value vaccines. #vaccineswork #AMR

CharlesShey Wiysonge (@charlesshey) 's Twitter Profile Photo

Rubella vaccine introduction across Africa is working, but gaps remain We found substantial reductions in #rubella cases post-introduction, yet 1/3 of countries still haven’t introduced RCVs & report most of the cases panafrican-med-journal.com/content/series… Time to close the gap #VaccinesWork

SABC News (@sabcnews) 's Twitter Profile Photo

The Airports Company South Africa (ACSA) says the Cape Town International Airport has been ranked the best airport in the world in the 2025 AirHelp Score. tinyurl.com/3b23tfus

The Airports Company South Africa (ACSA) says the Cape Town International Airport has been ranked the best airport in the world in the 2025 AirHelp Score.
tinyurl.com/3b23tfus
CharlesShey Wiysonge (@charlesshey) 's Twitter Profile Photo

We modelled #measles immunity in Chad & uncovered worrying immunity gaps Low MCV1/MCV2 coverage = persistent outbreaks Urgent need for stronger routine services + SIAs More at doi.org/10.1016/j.ijre… #VaccinesWork #Immunization #GlobalHealth #Chad #IA2030

CharlesShey Wiysonge (@charlesshey) 's Twitter Profile Photo

Nous avons modélisé l’immunité contre la #rougeole au #Tchad et révélé d'importantes lacunes immunitaires Faible couverture MCV1/MCV2 = flambées persistantes Urgence de renforcer la vaccination de routine et les AVS doi.org/10.1016/j.ijre… #Vaccination #VaccinsSauventLesVies

World Health Organization (WHO) (@who) 's Twitter Profile Photo

In 2024, 89% of infants received at least one dose of the diphtheria, tetanus and pertussis (DTP) vaccine, and 85% completed all three doses. Global demand for childhood immunization is strong according to new data from WHO and UNICEF đź”—bit.ly/4kFzSGW

In 2024, 89% of infants received at least one dose of the diphtheria, tetanus and pertussis (DTP) vaccine, and 85% completed all three doses.

Global demand for childhood immunization is strong according to new data from WHO and <a href="/UNICEF/">UNICEF</a> đź”—bit.ly/4kFzSGW