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The position of Team Lead, Vaccine & Immunization Policy (P5), within the Department of Immunization, Vaccines and Biologicals (IVB) has just been announced, with an application deadline of 13th October 2026.    This position includes the role of Executive Secretary to SAGE and is cri...

The TB Vaccine Accelerator Working Group on Country Readiness, Advocacy and Community Partnership is hosting a series of webinars in an effort to increase knowledge about new TB vaccines for adolescents and adults, and the role that they are envisaged to play in future efforts by countries to end TB...

The BigCatchUp campaign, recently implemented in the Edea health district, was a crucial initiative to catch up on children who had received no vaccinations (zero dose) as well as those who were under-vaccinated. This programme aims to strengthen vaccination coverage and ensure that every ...

Some guidelines state that a walk-in cooler that stores vaccines can hold its temperature for 3 to 4 hours without being opened during a power failure. However, what is the actual holdover time, especially in the summer season?...

A child received 2 dose of mesales vaccine 7 to 8 months ago and child developed the measles symptom. Both IgM and PCR test are positive for measles. Can this be a false positive ?...

On May 22, 2026, HLN released a new version of the open-source Immunization Calculation Engine (ICE) software with several clinical logic and technical enhancements to improve clinical decision support accuracy and service. Clinical refinements include updates across seven vaccine groups t...

Learning agenda on hepatitis B birth dose vaccine delivery in Africa Insights and recommendations to improve timely administration Wednesday 4 March at 16:00–17:30 EAT | 14:00–15:30 CET | 8:00–9:30 EST Chronic hepatitis B affects 254 million people globally, with the highest burden in low‑ and m...

Colleagues, WHO has released the Full Value of Improved Influenza Vaccines Assessment (FVIVA), looking at the potential health, economic and policy impacts of next-generation influenza vaccines that offer broader and longer-lasting protection than current seasonal products. Some key takeaways that...

Good day, We are looking for free or WHO-supported tools to manage preventive maintenance (PM) for vaccine cold chain equipment. Our goals are: Schedule routine maintenance for refrigerators, cold rooms, and freezers Track asset inventory and maintenance history Align documentation w...

I believe that IPV vaccine is avaliable with VVM 14 and 30. VVM 14 color changes faster, can we use IPV with VVM 30 for immunization program? Any price difference between VVM 14 and 30? Can someone help to respond?...

Which indicator is best to calculate drop out rate for Penta 1 to 3  1. MR 1st dose to Penta 3rd dose 2. Penta 1st dose to Penta 3rd dose ...

I believed even countries maintaining high routine immunization coverage for OPV and IPV also detected cVDPV 3 or Type I poliovirus in enviromental sample, so whether cVDPV or type 1 polio virus is imported or mutated originated strain within the country. 1. If it is imported what could be the mode...

Dear Colleagues,   We would like to introduce you our upcoming Virtual KLIC Innovation Agora series - vKIA #09: Climate-smart vaccine delivery: Resilient systems for unpredictable climate.  This event promises to bring together the brightest minds in global health innovation for an...

WHO Immunization Devices prequalification (WHO IMD-PQS) is delighted to announce the opening of the NEW WHO e-Prequalification System (ePQS) for immunization device prequalification and a NEW website and catalogue of prequalified products for WHO Immunization Devices. WHO eP...

Some countries introduced one dose of IPV in 2015, switched from tOPV to bOPV in 2016, and introduced a second dose of IPV in 2021. These countries are at low risk for polio importation or transmission. Can these countries discontinue the use of bOPV and switch to IPV only for routine immunization?...

Those countries maintaining polio-free status for the last ten years and sustaining OPV3 coverage of more than 95%, and that have introduced two doses of IPV vaccine into the routine immunization schedule. Some countries are still giving the OPV zero dose. Do they need to give OPV zero mandatorily o...

For people who got chickenpox at a young age, are these people at high risk of getting herpes zoster when they become older?...

Wednesday, June 25, 2025 | 14:00 to 15:30 UTC | Interpretation is available in both English and French. Register Today: Meeting Registration Link Join us on June 25, 2025, for a webinar on ZIP, Gavi’s Humanitarian Partnerships, hosted by CORE Group and featuring the International Rescue...

Dear All The March 2025 SAGE meeting report has been officially published today and is now available on the SAGE website. Strategic Advisory Group of Experts on Immunization (SAGE)   With best regards, Jaya on behalf of the SAGE Secretariat...

Is there an updated guideline for the Thermostability of vaccines 1998 (attached)?  ...