Interim Guidance, published 11 January 2021.
The cold chain is necessary to prevent damage to vaccines caused by heat exposure. However, improper use of cold chain equipment may cause damage to freeze-sensitive vaccines (i.e. those vaccines containing alum adjuvant or oil-emulsion adjuvant). Studie...s conducted in several countries with hot and cold climates show frequent occurrences of sub-zero temperatures in the cold chain. The most common cause of exposure to freezing temperature is the failure to correctly condition ice packs prior to transport. Vaccines that are inadvertently frozen lose potency, increase wastage rates and increase the risk of adverse events following immunization (AEFI). Vaccine carriers protect vaccine potency during immunization sessions and transport to outreach sites. This guidance document is intended to help inform which type of vaccine carrier to select based on local context, to maintain vaccine quality, especially at service delivery points.
more
This resource explains how WHO EUL COVID-19 vaccines without vaccine vial monitor or VVM should be handled at the vaccination site, to ensure that safe and potent vaccines are administered.
This document has been updated: 31 August 2021
WHO Vaccine Management Handbook
4 August 2021. Currently, Pfizer BioNTech COVID-19 Vaccine COMIRNATY® (Tozinameran) is the only COVID-19 vaccine that should be stored and transported at -60ºC to -86ºC ultra-low temperature (ULT) conditions. Prior to use the vaccine can be transferred to -20ºC freezer or +2-8ºC refrigerator at... the lower store levels and immunization service points. However, vaccine shelf life is affected when vaccine is transferred to a different storage temperature. Health workers in charge of managing the storage, transport and administration of the vaccine should be well trained to maintain vaccine quality. Good cold chain planning, strong management of vaccine supply, logistics and distribution, including installation and effective monitoring and evaluation of the performance of the storage equipment and infrastructure, are also necessary.
more
This guide provides a comprehensive overview of essential information related to immunization, including technical information about vaccines, a review of immunization program management best practices, guidance on the delivery of immunization services, monitoring and evaluation, disease surveillanc...e, and the role of behavior change.
more
This article is part two in a series of explainers on vaccine development and distribution. Part one focused on how vaccines work to protect our bodies from disease-carrying germs. This article focuses on the ingredients in a vaccine and the three clinical trial phases. Part three outlines the nex...t part of the vaccine journey: the steps from completing the clinical trial phases through to distribution
Available in English, French, Spanish, Arabic, Chinese and Russian
more
A handbook for district and health facility staff
This article is part four in a series of explainers on vaccine development and distribution
Available in different languages
A handbook for district and health facility staff
COVID-19 Vaccines: 1 Safety Surveillance 2 Manual
While there is no indication that pregnant women have an increased susceptibility to infection with SARS-CoV-2, there is evidence that pregnancy may increase the risk of severe illness and mortality from COVID-19 disease in comparison with non-pregn...ant women of reproductive age. As seen with non-pregnant women, a high proportion of pregnant women have asymptomatic SARS-CoV-2 infection and severe disease is associated with recognized medical (e.g., high body-mass index (BMI), diabetes, pre-existing pulmonary or cardiac conditions) and social (e.g., social deprivation, ethnicity) risk factors. Pregnant women with symptomatic COVID-19 appear to have an increased risk of intensive care unit admission, mechanical ventilation and death in comparison with non-pregnant women of reproductive age, although the absolute risks remain low. COVID-19 may increase the risk of preterm birth, compared with pregnant women without COVID-19, although the evidence is inconclusive.
more
Available in different languages
Vaccins antirabiques: Note de synthèse de l’OMS – avril 2018
Weekly epidemiological record / Relevé épidémiologique hebdomadaire
20 APRIL 2018, 93th YEAR / 20 AVRIL 2018, 93e ANNÉE
Accessed Sept, 5 2018
Weekly epidemiological record, Relevé épidémiologique hebdomadaire : Vol.93 (2018) No.13
The COVID-19 Vaccine (Whole Virion Inactivated) BBV152, COVAXIN® vaccine explainer includes key information on the vaccine specific requirements.
6 June 2022
These WHO interim recommendations on the use of the Janssen Ad26.COV2.S (COVID-19) vaccine were developed on the basis of advice issued by the Strategic Advisory Group of Experts on Immunization (SAGE) and the evidence summary included in the background document referenced below.
Th...is document has been updated: Version 6 June 2022.
more